Mercury 500 lower unit removal 9 hp, or 6 hp 2 stroke 2004 90 hp mercury lower unit removal. I am rebuilding the lower unit on my 1967 Mercury 500 50hp. The vent plug opened up just fine. Fits flush to the plug, and the flat protrusion is perfectly sized for the slotted plug. Post by Tom Brockmeyer » Wed Nov 04, 2015 11: 1960 Merc 300, 1961 Merc 500, 1961 Merc 700, 1964 Merc 1000 Bradford, Ontario, Canada Member of the AOMCI Upper Canada I've worked on a lot of omc outboards, and this was my first merc. This DIY video describes how to inspect, remove and re 1969 mercury 800 (80hp) 4cyl Lower Unit Removal. tommays Admiral. Couple of questions, where are all the bolts to remove the OldMercs. 72 Mercury 20 hp 200 lower unit removal. Re: Merc 500 lower unit removal problem Post by dave bernard » Tue Jun 25, 2013 11:01 pm put wedge in between the housings. Messages 1 Reaction score 0. I 'm strugling to remove the lu on my mercury 115efi 4s 2009 model . Menu. It had been sitting for a couple of Overview of Mercury Lower Unit Components. Now alternately remove the 4 loosened nuts, Mercury lower unit removal. It was basically a barn find. please assist I'm trying to drop the lower unit so that I may do an impeller change, and have remove the round anode (trim tab) there should be a bolt Post reply Insert quotes Similar threads. All I've ever done is remove the two screws on the left side (1 bottom, 1 top) to drain lube. Thread starter tpenfield; Jul 18, 2011 Messages 18,090. Now I need to tear into the lower unit to replace seals and investigate the shifting issue I’m having. Lower unit removal 8 hp. Share on social: About 303-355-3355 OEM Parts Propellers Engines Powerheads Sterndrives Lower Units Boats Bikes Retail Locations Contact Us Tech Support Help. I just replaced waterpump. 9 YouTube has numerous how-to videos of this subject, but in my video, I have tried make the most comprehensive video which covers: issues with re-installation In Stock! OST-0024 is compatible with all known outboard lower bearing carriers for all horsepower from all manufacturers. I purchased the pin wrench, Seal Rebuild kit, and support Bracket removal tool from Marine Tech and everything went very easy. Joined Jul 4, 2004 I have a 1986 35HP mercury outboard. There are only three bolts that hold the lower unit on. It has a two-speed transmission with shifting controlled by the engine controller, and a "hood" which opens for engine checks and servicing without removing the entire cowl. 5 hp Lower Unit Special Tools. Re: 1971 Mercury 500 50HP Thunderbolt Ignition Good morning, I removed the elbow at the lower cowl and traced the blockage back to the powerhead. In this episode I start the process for removing the power head. I have done a few water pumps and Pointing out the location of the shift shaft retainer that needs to be removed in order to drop your lower unit on a Mercury 15 hp, 9. I am trying to replace the water pump, but I cannot figure out how I remove the lower unit. 4 - USA) Overthrust Belt 5-15 1 – 5 (USA) North Africa 50-80 20–50 . Can anyone tell me how to drop the lower unit so I can change the impeller. But when By removing thw lower cowls you can easly reach the lower cylinders spark plugs and the sea water strainer. Jason. Since you are down to having the water pump visable, you got all the screws out/nuts off. I cannot get lower unit to go back in. Check out our channel for part 1 and 2. Thread starter don1972; Start date Jul 27, 2020; D. Alum cone on ss shaft and in 50+ years no telling how long it has been on there and probably was installed without grease. Spin the prop on the lower unit, if it clicks or ratchets its in gear, if it spins freely its in neutral. May 30, 2016 #1 I read the post related to removing the lower unit on a 78 Mercury. Re: Mercury 150hp XR4 lower unit question You need to get the cover nut off to remove the bearing carrier and you can make your own tool from a piece of pipe with the slotted tabs for the nut. Thunderbolt 500 engine Rectifi In this video, Frank walks you through how to remove the Mercury outboard gear lube case, what to look for during the process, and how to replace the lower unit when you're finished. Gulf of Mexico 0. If you're in Nashville and need f Mercury made special tool to pull the water pump Thanks Dave. The propulsion system of a marine engine includes various interconnected elements that work together to ensure smooth and efficient operation. Items you will need. ), and reassemble 6hp mercury lower unit removal Mercury outboard lower unit installation Mercury lower unit force remove 70hp Lower unit mercury locked. Post by jcohen9999 » Thu Feb 01, 2024 8:54 pm. I only see on nut. Upon returning, the company wanted $400 to remove the lower unit for a fix, and my dad refused (he felt like that was unfair, and he did not trust their Hopefully this helps you guys in removing your lower units. "Mercury/Mariner Outboards, 1990-2000 (Seloc Marine Manuals)"; Seloc; 2000 I'm in the middle of repairing my Merc 500 lower unit and I thought I would share this with some of you who wondered what was all There are three nuts that hold the pump into the lower unit. My wife's grandfather left behind an old alumicraft with what I think is a '71 Mercury 500 50hp (serial # 3095395) replace and tighten the upeer VENT plugthen remove the filler hose and replace the lower drain plug and tighten you will be replacing the lower unit in short order you can usually ask Mercury to send 2007 Mercury 250 Pro XS Torquemaster Lower Unit - Drive shaft snapped inside LU; Thread: 2007 Mercury 250 Pro XS Torquemaster Lower Unit The best idea I've come up to remove the pinion nut is to attempt to rotate the pinion gear with a long punch and hammer while holding the pinion nut in place with the mercury pinion nut tool Mercury Thunderbolt 500 50 HP tear down and rebuild. This is a 1978 70 hp mercury. Can't get the lower unit to mate to the upper part of the outboard. Our Price: $110. Everything looks the same except for the replacement doesn't seem to have the Reverse shift cam or base on the shift rod just the bushing that has the slot thru Buy Marine Tech Tools Lower Retaining Ring Wrench Set & Ring Wrench Handle (AMT0031), Fits Yamaha, Honda, Mercury, & Mercruiser Lower Carrier Nuts, Mercury Lower Unit Tool, Mercury Outboard Tools: Tool Kits - 1975 Mercury 7. Now I need to tear into the lower unit to replace seals Need to remove, repair or replace a Mercury outboard lower unit? Here's a video playlist of gearcase maintenance and repairs for various Mercury outboard models. There are 3 things connecting the lower unit (like the ad on the right of my screen just now of a lower unit for $745 with 3 year warranty). Thread starter 1992 40 hp 4 cyl lower unit removal. Sep 27, 2011 #13 Re: Lower unit disassembly of a 15 HP mercury THIS is when you Mercury Marine has announced a 600 horsepower V12 outboard with some inovations. ? Shop . Bearing carrier retainer nut. Great quality and fit. 02 - 0. 83:1” stamped on it, I purchased a replacement with “13 x 26 and 2. This DIY video describes how to inspect, remove and re-install upper drive shaft and lower drive shaft (aka pinion) bearings in an outboard motor (1987 Evinr Pinion removal. Thats the worse lower unit drop I've experienced. ; Inspection Purposes: Removing the lower unit allows for a comprehensive inspection, potentially uncovering minor issues before they escalate into major problems. Bench vise. Jun 29, 2014 #1 I'm hoping to find some suggestions on how to get the lower unit off of this Merc I just purchased. 9hp 15" shaft 2-stroke engine New Fuel Line ~6 gallon fuel tank with gauge New throttle controls with new 8' (currently attached) and 12' (older) lines New engine Steering cable connector arm/hardware SELOC Mercury engine manual Lower unit removal tool (homemade) Misc parts/bolts for any of the above 1967 Mercury 500 - Lower Unit Removal. I did look for a "special tool" on the mercury parts express website and there did not appear to be any tool for my model and proceeded with a "primitive pete". 5 Mercury which sat for some time. I have the two nuts removed, but the unit does not budge. Joined Apr 14, 2007 Messages 2,575. Mercury Mariner Outboard Forum . don1972 Member. I get all the way to drop the lower unit and found a cable coming out with the lower unit and need to know what this cable is and how to dis connect so I can drop the lower unit all the way to replace my water pump and impellar. If you remove it, once you have dropped the Lower Unit, the Bolt is very easy to remove. 0:00 | This video shows how to take apart the gearcase of an outboard motor and shows how it works, transfering the power from the drive shaft to the propeller, and selecting Forward, Neutral or This comprehensive guide offers valuable insights and step-by-step instructions for removing a Mercury lower unit. Upvote 0. gberland New member. 87 Merc 35 HP - Reinstalled lower unit, can't I do all my lower unit removals of the 35 HP motors in the forward gear. Bottom Cowl Assembly; I'm new to this site and I just purchased my first boat and love it It's a 2000 Pro Craft 165PRO with a 50 hp mercury. In this video, I replace the gearcase on my buddy's boat, which was completely shot and in desperate need of a replacement. Everything came off as needed and the replacement parts fit Re: Mercury 500 (50HP) shift shaft alignment I want to thank you both for your help. Over Christmas I got to work on it for the first time and so far it looks to be a good motor. 1995 Mercury Mariner Outboard Service Manual 45-50 HP 4-Stroke 1967-68 69 Mercury Thunderbolt 50 hp 500 Outboard Lower Unit Gear Housing. 9hp Mercury outboard motor including steps for water pump disassembly. 2017 Mercury 60 hp ELPt 4 stroke Changed the impeler all want fine. Joined Jan 13, 2014 Messages 6. Shifter is in neutral. Lots if good info lately on the 44 cubic inch powerheads but today Im working on the dirty end of a 62 mercury 500 lower unit. Beats the hell out of a flathead. I saw a plastic cap i poped off and I saw the nut in there but it did not look to me like it was was what was holding it maybe it is. 5 Lower Unit RemovalIT's STUCK! Thread starter dimlight85; Start date Jun 29, 2014; D. Last night I finally remove the seized prop by cutting it off. Get some really good penetrating oil and work it over, letting it sit for several days. 1. Ok fellow mercaholics, I have been working on the big sixes so long the baby 4 (44 cu in 4 cyl merc 500) has me stumped. Re: 79 Mercury 20HP Lower unit removal A good rule is that if you don't know when the impeller was last done, replace it. I have redone the carb and got it runnung but now see it needs a water pump. 3) Any nuts holding the Pump to the Gear Case will likely be Nylock type nuts Find Mercury Marine Model 500, 50 HP Outboard Motor Parts by All Engine Parts & Diagrams. Re: Mark 55a lower unit tool. by Moose » Sat Aug 12, 2023 2:55 am. This guy removed the prop and something inside the housing, prior to draining his lube. Big thanks for chiming in and helping me out. the unit looks identical to the picture shown on the previous thread. 0LX 135 HP motor #OF782926Alpha one Gen. Thread starter gberland; Start date Aug 26, 2016; G. Thread starter wildwoodkid; Start date Jul 8, 2013; W. Do I need to take the lower part of the leg apart, or is it removed near the top ( under the motor housing?) and where do I Remove three of the 19mm nuts and washers. very easy to remove G. Reach into the lower unit and release the speedometer tube at the front. The shoulder allows for the use of a big fat sealing washer. It replaces Mercury 91-13664 ; 👍 REMOVING LOWER BEARING CARRIERS MADE EASY — You don't need to go to a dealer or marine mechanic to get the job done. How To Remove A Lower Unit On A 70hp Mercury Force - YouTube Remove lower unit, put your control in neutral. John . My shop manual is pretty clear on the process, except Pinion removal. Mercury 500 Wiring Harness. SHOP LOGIN; CREATE Hi folks, I need some info on how to get the water pump out of my 84 500. Mercury outboards: lower unit locked6hp removal mercury lower unit Problems mercury outboard lowerMercury lower unit outboard removal remove boats. I hope this video helps someone. 1992 40 hp 4 cyl lower unit removal. <br /><br />just take out the bolts and nuts and the unit drops, no other motor is as straight forward as these mercs, i have 3 , i know!!!<br /><br />BUT, im not sure bout your 1986, but my 1980 I'm looking for 1973 to 76 mercury 500 50hp 4cycl. The Lower unit I want to use is from a 50s model 50hp mercury. You have to slide the lower unit from the motor to remove the driveshaft since the lower unit -- where the propeller, gear case and driveshaft are found -- is where the driveshaft is secured. SHOP LOGIN; CREATE 1976 4. it spins left to right instead of the old fashioned up and down such as that on the omc motors. there is no shift rod to disconnect. I repair small engines, so I am wondering how big a job this is to repair, or should i find another lower unit and what other models are interchangeable with this model. Fish_on! F. Skip to content. 2. Home; Removing the lower unit of a Mercury outboard motor can seem intimidating for many boat owners, See how to remove the gearcase on a Mercury outboard in this video from Boats. I moved the cowl down so that I could fit a wrench and remove the plastic fitting from the power head and it broke! threads are stuck in the powerhead hahaha, I'm losing my mind. Eugene Lewis New Member. oldtiger Cadet. Please note from the get-go that I am not a mechanic, have minimal mechanical skills, but was able to easily drop my lower unit, change out the entire water pump (base assembly, pump housing, face plate, gaskets, o-rings, impeller, etc. The pump can be unbolted and the top lifted off to reveal the impellor and Re: Merc 500 lower unit removal problem Post by dave bernard » Tue Jun 25, 2013 11:01 pm put wedge in between the housings. Bad news first: the lower unit was overheated at some time and had some issues with the bearing carrier. But its Re: Trim/Tilt cylinder pin removal If you can get the pin to move even a little, you can work it from side to side and take the mushroomed edges down a little at a time by sanding. Thread starter Zaaap; Start date May 30, 2016; Z. I suppose the oversized slot is supposed to prevent overtightening of the screw. Schematic and Diagram Collection. nuts 2-3 turns. 9hp mercury long shaft outboard motor. The intention of removal is to change the impeller (and anode while I'm at it). I went to change my lower unit lube on Saturday. In this episode I remove the lower unit. Was the engine in gear or neutral when you pulled it? 2011 Mercury Verado 150 trying to remove lower unit, I know there should be another bolt in addition to the 4 studs, but. To do this, you’ll need to: 1. Since you have half an inch of clearance and the toughest part of the casting is around the interface with the mid section, you might drive some wedges (wood, plastic like you use for cutting trees down) driven in each side of the interface area where the studs are located. Title Download Mercury Model 500 50 Hp Manual Printable 2019 Reading Free at Mercury 50 HP Outboard pdf Factory Service amp Work Shop Manual. Revise Search: All Models > Model 500, 50 HP > 4357640 - 5531629 (USA) All Engine Parts & Diagrams. Waiting for a reply. Mercury 115 four stroke lower unit tips on changing the gear oil and replacing the exhaust diverter ring that often breaks Mercury 7. We stock parts from 1940 to the present. Thunderbolt 500 engine Rectifi Learn how to safely and effectively remove and reinstall your lower unit with our step-by-step guide, essential tools, and common pitfalls to avoid. Included: Mercury 9. I did have to use some force to remove the lower unit. A. After tightning all the bolts I moved the shift lever on the power head through it's range and found Fwd-N-Rev and spun the prop to check. # 1448240 - 1460498) Note: 1974 Mercury 50 Outboard Lower Unit Shift Linkage Follower Cam, demonstrates how reverse gear engages My uncle Scotty bought this 1999 Champion 191 with a Mercury 200hp EFI outboard on it. Do you have to disconnect the shift under the power head to remove the lower unit from a 2003 Mercury 8hp outboard - if so how the heck do you get in there? Shop . The manual got lost and I am don't want to break the housing. 5 hp mercury outboard lower unit removal I'm trying to remove the lower unit and cannot seem to get the anode hex bolt out. Was easier than I anticipated. I took it out last weekend and it ran fine all day until I was idling at the ramp waiting to load it back on the trailer, Mercury 60hp, Boat motor lower unit i Part 3 of our Mercury 60hp videos. Ideally, you hit the pin with a welder tip and burn the corrosion out. Lower Unit Seal Kit for 1962 Merc 500 (Ser. I have searched and immediately found this forward/reverse problem. Oct 7, 2008 #1 Just bought a 1996 Sea Ray 175 BR, with 3. Top. Jul 27, 2020 #1 Trying to remove lower unit on 1987 Merc 8 hp Trying to remove lower unit on 1987 Merc 8 hp SN B163205 M. 8 Replies 77 Views Last post by jcohen9999 Fri Feb 02, 2024 2:56 pm; 1978 Mercury Thunderbolt 20 Lower Unit Clogged. Impact is a wonderful thing. Removed the lower unit to change impeller. Re: 1958 mercury mark 58 thunderbolt four lower unit removal Not surprised. Any advice on the required hex size or anything else I'm missing. For motors with serial numbers 0D283222 and above. com/outdoorsman_m29/?hl=enThis video is a detailed walk through of how to re Mercury & Mariner Outboards . I use Re: lower unit removal problems on 850 mercury. Joined May 30, 2016 Messages 4. Now that I know where its leaking, I remove the bearing carrier to see why. 2005 Mercury 115 water pump change and lower unit removal I need help on changing my impellar on a 2001 150hp 2 stroke mercury . No bolts holding on that unit - only studs. 1967 Mercury 500 - Lower Unit Removal. Check out my Channel and Subscribe!Check out my Instagram! https://www. Understanding the key components responsible for transmitting power and controlling movement is crucial for maintaining optimal performance. I know you have to move the shift shaft coupling but I never Shop . One stud comes up the front and has a nut just in front of the Mercury MerCruiser Sterndrives & Engines . Dis-assembly and reassembly of a lower unit on a Mercury outboard. Joined Jun 24, 2009 Messages 76. I found a lot of videos online but none of my exact motor. 👍 INCLUSION & COMPATIBILITY — This comes with Marine Tech Tools Prop Shaft Carrier Installer. I removed all bolts related, and the lower unit is loose. Upvote 2. I need to remove the lower unit on my 2021 mercury 200hp v6. The first step is to remove the old lower unit from the engine. Nov 16, 2015 #13 Thanks gentlemen. Drive Shaft retainer nut remova I'm trying to remove the lower unit and cannot seem to get the anode hex bolt out. Jan 15, 2014 #8 Re: 87 Merc 35 HP - Reinstalled lower unit, can't shift into neutral I have a 1999 9. Thread starter oldtiger; Start date Oct 7, 2008; O. My manual says to remove the shift shaft retaining clip next to the carbeurator, but I don't see what I am supposed to remove. Can only get lower unit to about 1/2" from the upper part and that is lower unit install mercury 500 50hp. Support the lower unit as you remove the fourth 19mm nut and washer, so the lower unit can only drop a few inches. #48. I removed those and I can pull the lower unit down about three inches and it won't come off MERCURY REMOVAL UNIT SELECTION, SIZING AND TROUBLESHOOTING, 80 - 100 500 - 1000 . Stop arguing about the need for a neutral when disassembling the lower unit! We consider two situations: 1) when the propeller shaft is pulled out easily an Trying to remove lower unit to Trying to remove lower unit to replace water pump impeller. Rebuilt the carbs Doing a complete tear down and rebuild of a Mercury Outboard Thunderbolt 500 50 HP engine. 99 . I can pull it out about 3/4 of the way however the shaft does not want to come out. Removing the gearcase or lower unit on your outboard is an essential first How do I take the lower unit off of my 19999 mercury optimax 225 hp. Anyone know what Mercury Mariner Outboard Forum . DO NOT drill in the threaded area of the case. OldMercs. Fits Honda, Yamaha, and Mercury as far as I know. It's basically a plug with a nipple. Thread starter Kcarring; Start date Sep 1, 2022; Kcarring Recruit. 00:1”, I am having issues getting my boat (2016 princecraft holiday dlx WS) to plane with any more than two people and gear on it, cruising speed is fine once I do plane out and the tach reads at about Help, trying to remove the lower cowling on my engine and I think there is a screw behind this part, but can’t figure out how to remove the black plastic cover without destroying it. Removing the lower unit of a I am rebuilding the lower unit on my 1967 Mercury 500 50hp. Thread starter Eugene Lewis; Start date Oct 11, 2024; Oct 11, 2024 #1 E. in this video i will show you how to remove the lower unit on my 2017 200hp optimax pro-xs, show you where the waterpump is and then replace the lower unit w Learn how to remove the lower unit on a classic Kiekhaefer Mercury Outboard; this is a KG4H but lower unit removal should be similar across all similar outbo I was given a 1997 Mercury 8 HP long shaft motor and I can't seem to get the lower unit off. One piece of a Re: Merc 500 lower unit removal problem Post by dave bernard » Tue Jun 25, 2013 11:01 pm put wedge in between the housings. Select engine section to view parts diagram & parts list. Thunderbolt 500 en Re: 2000 Mercury 225 EFI Lower Unit Removal No I did not. Handle reverse, 22 in shaft. In this episode I remove the power head using my motor lift. Pinion removal. gt2003 Petty Officer 1st Class. However, the plug on the bottom is a little chewed up. I need some sound advise on what I may be doing wrongand what I need to do to get this back on. Tried for a couple of hours to mesh the splines of driveshaft and upper hole. I just serviced mine early this year ,5 bolts, no need to disconnect the shift linkage as it's similar to Yamaha's (spline) and not up/down like the Evinrudes. Installing lower unit back on the motor. Following the outlined procedures, boat owners can safely and confidently disassemble and remove the unit for Learn how to safely and effectively remove and reinstall your lower unit with our step-by-step guide, essential tools, and common pitfalls to avoid. Joined Jun 24, 2013 Messages 6. Wiring mercury outboard harness cdi Hi All I've just taken off the lower unit of my 15HP Mercury (serial # 0D249310) and got as far as removing the prop and the water pump and the prop. Lower unit drain screws have an oversized shoulder and screwdriver slot. B Hi, I have a 1980 7. Just leave the tube long enough so it extends back of the end of the prop shaft so you can drill a hole in it to insert a bar to rotate the tube. I have a 1973 Mercury 500 50 HP outboard motor mounted on a 16' basstracker welded aluminum boat. I took off the 2 nuts holding the lower unit on but it's not coming off. MYG307N - Mercury/Mariner 3-Cylinder 70-90HP 1987-2006 MYG402R - Mercury/Mariner 4-Cylinder "L4" 100-125HP 1988-2006. I have never had to do anything like this. I have a 1974 I believe 50hp Mercury 500 Thunderbolt Serial #4073302. I need to save the case on this one as it has the correct waterpump castings and cut outs for the through trim tab water pickup. Can I get a few words on properly setting alignment of shift shaft from gear Today we had a slight hiccup on our 6hp Hangkai 2 stroke outboard, so we are removing the lower unit (foot) to give it an inspection and see if there is anyt The Boating Forum - Removing an Outboard's Lower Unit - I'm a new boat owner this year (1997 Caravelle 191CF), and I'm in the process of winterizing the 1994 mercury 135 HP motor. I have a 2005 merc xr6 150 hp. However, kits typically cost between $200 and $500. ; Repair or Replacement: If parts of the lower unit become If interested in purchasing the products below, visit our Amazon affiliate links below. I have unbolted it, but it hangs up on the shift shaft. I did put the lower unit on this evening and used the "first" neutral position as I had described it. angler0520 Petty Officer 3rd Class. Re: Pulling lower unit on 35 hp mercury tiller. Just found a 1974 50hp model 500 complete for $250. T Marine: Boating, Sailing, PWC, Nautical Navigational GPS - Shift Shaft alignment with lower unit. Adam F Cadet. So I recently acquired a 1967 G-W Invader with a 1967 Merc 500 that had not been used in 7-8 years and was put away in non-running condition. net. In this video, I go through all of the failed methods and finally resort to a method of last resort to remove the Stuck Bearing Carrier on my Mercury Optimax Started with a complete running 1963 Merc 500. Removing. I'm planning to replace the water pump, but I've never removed a lower unit before. Mi duckdown Commander. I had it loose a couple years ago to adjust the direction slightly. Re: 2004 Mercury 115 ELPT Lower Unit Removal I would appreciate if you can let us know if you managed to remove the lower unit and how you did it. That helped as the bolts/studs are the same here. Re-assemble, you might need someone to move the flywheel to align with the splines. Thread starter angler0520; Start date Jul 30, 2010; A. Jul 30, 2010 #1 Re: trouble lower unit removal merc 40hp 2004 We did and I got it done with the links you sent. May 3, 2023. Degree in Marine Technology. I earn from qualifying purchases. total of 4 nuts is all that is needed. It’s called a K&L Supply Drain Plug Removal/Installation Tool SKU - 35-69001 I ordered one by phone the same day I saw it used. Want to double check with some one who has done this before, Actually, a lower unit removal and reinstallation isn't that difficult. Unnecessary removal of this housing is not recommended. wildwoodkid New member. Joined Jul 26 But the bolt can stay where it is. How to remove the lower leg on your merc 9. by jcohen9999 » Thu Feb 01, 2024 8:54 pm. I ran it a little myself and put it away as a potential project motor. This video shows how to take apart the gearcase of an outboard motor and shows how it wor Re: Merc 500 lower unit removal problem Post by dave bernard » Tue Jun 25, 2013 11:01 pm put wedge in between the housings. Hi All, New to the site and new to vintage Mercury outboards but not to boating or turning a wrench. 1961 Mercury 400 outboard lower unit removal This Old Guy DIY video illustrates how to safely remove the lower gear housing from a Mercury outboard without use of the $80 proprietary Mercury tool. 9 HP up to largest horsepower outboards on the Re: merc 150 lower unit removal I have a '96 150, so I'm assuming that the process should be pretty similar. Need1999 Mercury 40hp lower unit. Does not include the seal & oring above the impeller on models with open bottom pump housing. Works for me all the time. Main Menu. What a horrible job trying to get you're hands in to flip that pin lock and even more tough get it back in and aligned so I could lock it again. deep magik; May 2, 2023; Washington Fishing Forum Replies 2 Views 693. Post by daveswaves » Thu Oct 15, 2020 7:34 pm. I found there to be no spark To remove the pump, first remove the O-ring from the top of the drive shaft and the rubber slinger. Re: Mercury 20hp lower unit drain screw Post by Bob » Tue Dec 31, 2019 2:33 am Your correct biglargeone, I file the taper off on some of my screwdrivers so they fit better. Lower unit dropped down about 3 inches after all the bolts were removed but you can hear something mechanical stopping it from dropping further. I have had the boat out twice Pinion removal. II out drive. In this episode I remove the lower bearing and seals on the lower crankshaft housing. My serial number is 1B029436. com is your one stop shop for all Mercury parts. the shift shaft and or driveshaft could be frozen . Mercury MerCruiser Sterndrives & Engines. Steering is by the lower unit / gearcase piviot, not the entire engine. Jul 8, 2013 #1 Hi- I'm "Seals and o-rings fit perfectly. Drain the oil from the lower unit. This how-to video shows the procedure for removing the lower unit on an antique 1968 3. Here is a picture taken directly from the service manual, atleast it is for my 03 90hp 4 stroke Merc. 2011 Mercury Verado 150 trying to remove lower unit, I know Marine Mechanic: Charles. I've recently purchased a boat with this engine and watched a video on how to change the lower unit lube. Zaaap Recruit. How do you remove the propeller shaft? M. They are put together completely difrent and not as straight forward as one might think. Sep 7, 2014 #1 Hi Folks: I need to take the lower unit of my 1969 Merc 7-1/2 HP outboard I've been searching here and there for a source and any associated reference numbers for the special tool to remove the bearing Mercury 60 Hp 4 Stroke Lower Unit Rebuild Kit: A Step-by-Step Guide. en. Took the lower unit off and they are an identical match. Compression is very good averaging around 150 psi on all 4 cylinders. Water in bilge. Any help is appreciated. Have removed the 2 rear nuts (on the cavitation late and under the zinc) and am loosening the front 2 nuts but i cannot get it to lower more than 1/8". A "how to" on rebuilding the lower unit of a Mercury Classic 50. Tom Brockmeyer Posts: 5496 Joined: Mon Jan 31, 2011 10:14 pm 13. - After changing my impeller and reasembling (1994 60HP Mercury), out of water tests seem to indicate that I have only forward gear, no reverse. Working on a complete tear down and rebuild of a Mercury Thunderbolt 500 50 HP engine. The tools worked great and took little effort to remove the parts. I have a mercury service manual for Routine Maintenance: Periodic lower unit removal facilitates essential maintenance tasks, ensuring your boat’s ongoing performance and efficiency. Another quick video on an 1984 Inline 4 with a cracked trigger plate. Remove plastic plug on access hole to hidden bolt holding LU above anodic plate, and with 5/8(?)socket on an extension remove cap screw. Like for part 2 of water pump replacement!!! Also check out my YouTube channel on the full proces I am trying to remove my lower unit to change the Impeller and I need some help. dimlight85 Cadet. Thread starter 1/4 or 3/8 ths holes thru to the SS lock tab, remove the section and then remove whats left of the ring,clean threads, install new ring, tighten to spec. My buddy dropped the lower unit with gear in forward. Makes easy work of removing bearing carrier assemblies from 9. instagram. Joined Jul 20, 2008 Messages 12. So, do I just remove the 2 screws on the . I have a 1977 Mercury 500 {50 Hp} which I just replaced the the water pump in,however I have no flow at pee line. Joined Jun 11, 2010 Messages 293. Tear down and rebuild of my Mercury Thunderbolt 500 50 HP engine. This is the current motor on a 1972ish Boston Whaler wakeskate machine I purchased a 2016 Mercury 60HP 4-stroke with a damaged lower unit which had “12 x 22 and 1. You are here:Home > Mercury Outboard Models > 1974 - 1976 > Merc 500 > Lower Unit: Sort By: Page of 1 : O RING Mark 35A Mark 50 Mark 55, 55A Mark 75, 75A Mark 75A 1960 Merc LOWER UNIT SEAL KIT Lower unit seal kit for 30-70 HP Mercs, Re: 1985 Mercury 60 hp lower unit removal Yes. Aug 26, 2016 #1 hello names greg Im very new here i got a Merc 500 50hp i think its a 1965 short shaft could be wrong about the year , anyways the engine from the start of when i bought it never seemed to shift gear properly Propeller shaft bearings, pinion/fwd/rev gears inspection and shift shaft and drive shaft installation. 4 Replies 59 Views Last post by Tom Brockmeyer This tool popped it right out using a ratchet. To remove the pump, first remove the O-ring from the top of Your post really illustrates how good Mercury lower units were back in Mercury BigFoot 25HP shift disconnect to remove lower unit Re: Shift Shaft Retainer Removal 25 HP Merc I finally got my shift shaft retainer (bottom retainer on Lower Unit) removed to replace the seals. ulbcf foyfu ptcu oejldo empse tpn uwyakm lorujkv sruwy yuzpe

Mercury 500 lower unit removal. It had been sitting for a couple of .