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    Wiseco piston circlips install versus OEM piston circlips

    Two specifc questions: Question #1 What technique is best recommended for installing the Wiseco piston circlips when putting the final clip in? When practicing on the old OEM piston, I can consistently use the plastic handle flat square screwdriver and push the end part of the clip into the...
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    Recommended steps for mix-up of piston removal documentation

    I got my parts in to begin slowly the powerhead rebuild of the V4 crossflow motor. I just finished my check on the end ring gap for the smallest and largest measured bore to verify it was within spec of the Wiseco pistons for just one piston. I'll still check the rest before putting them on the...
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    Gel seal application layout question/picture

    I've seen photos and videos showing the usual pattern for Gel seal application. However, I'm curious on exactly the proper placement for the typical 1990 V4 crossflow motor. Here is the photo of what I know and the possible placement drawn out in red lines via MS paint. Getting questions...
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    Expert opinions/data on piston ring gap and wear 1990 V4 90hp Johnson

    This is asking for professional viewpoint on wear limits/tolerances based on the published ring gap maximum for the piston rings of a 1990 V4 90hp Johnson. Data: All cylinders were checked by machine shop to be within specifications for standard bore size per the OEM manual I gave them to...
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    Amount of Geal Seal/Loctite 518 needed for V4 crossflow crankcase seal

    How much in volume is a good safe amount for Loctite 518 sealant needed for about 2 full attempts to seal the crankcase of a V4 crossflow? A 50ml tube sufficient? Just to make sure, primer is not necessary correct?
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    Advice on parts list for 1990 V4 crossflow

    After a lot going on last year, I was able recently to get my cylinders checked at a machine shop and de-glazed for a VJ90TLASB. I have to pick it up tommorow but I was told they were all in spec per the factory manual details. So my question is what do I need to replace other than seals...
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    Crankcase cover pin question

    I'm trying to decide how best to approach getting a crankcase cover pin out of the V4 crossflow motor (1990). The first one was significantly above the surface and a socket extension head on it knocked it out properly in the direction the OEM service manual tells you. The second pin at the top...
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    Best way to pry off regulator/rectifier from gasket and flywheel key question.

    I am on the last part of the electrical/ignition teardown of the powerhead of 1990 V4 90 HP crossflow outboard, which is trying to get the rectifier/regulator freed of the gasket on the powerhead. Everything else has been removed involving the flywheel, charge coil, timer base, power pack, etc...
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    Flywheel turner slipping when attempting to remove flywheel nut

    I'm in the flywheel removal stage of attempting to disassemble my 1990 OMC V4 90 hp crossflow powerhead on my workbench area. The problem is as soon as I start getting enough torque to possibly loosen the flywheel nut, the far end tooth of the flywheel turner (Lisle) slips out. Is there any...
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    Best parts containers for powerhead rebuild

    I'm planning for powerhead teardown in a month or so. What is the preferred hard container method that is cheap for keeping powerhead teardown parts organized. This includes all the fragile parts as well. I'm already using zip bags with sharpie notes on the small stuff. Volume isn't as big...
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    Lifting part number verification

    What is the correct part number for the lift fixture on a V4 crossflow (1979 and up) using the crankshaft threads and flywheel? I thought there was a combo package from BRP that included flywheel puller and lift ring. So far all I see is them as seperate items and don't see any...
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    V4 crossflow engine block compatibility question

    Would a 1988 110 HP engine block be an exact replacement for 1990 V4 crossflow block? Someone very recently is selling a machined block (3 holes 0.02, 1 hole required 0.04 oversize) for $150 within reasonable driving distance. I would be more inclined to buy it except the 0.04 hole. Would it...
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    Best value dial bore gauge for cylinder inspection

    I need to determine what precision level tolerance and quality of manufacturers is needed for a dial bore gauge to determine clyinder in spec or out of spec diameter or out of round. I want to avoid buying multiple times but also don't want to spend twice as much than needed. I bring this up...
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    1990 Johnson 90 hp throttle arm question and starboard cylinder head too warm

    1990 Johnson 90hp VJ90TLASB model. Backstory: After doing a VRO delete, carb rebuild, impeller replacement, throttle sync per service manual, and addressing minor time consuming issues that came up. I was finally able to get the motor running today and seemed to do fine on the muffs, except...
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    Johnson VRO harness plug cap

    Does anyone make an official cap plug for the OMC wire harness plug used for VRO pump? This is regarding VJ90TLASB 1990 Johnson 90 hp. I've already got everything removed and ready for re-assembly on my VRO delete. Regardless if it does exist or not, could I drill out the pre-existing wire in...
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    OEM fuel hose versus bulk USCG type A1 fuel hose

    On a typical 1990 OMC 85 to 115 hp outboard setup, are the OEM fuel lines in the parts diagram inside the motor housing that can be ordered better quality and easier to work with than bulk USCG type A1/A15 fuel hose? Just trying to decide if it's worth buying them or just add the amount to the...
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    Question involving options/limitations of aluminum deck coating/waterproofing.

    I was looking for a floor/decking covering/coating forum sticky topic that directly addressed the waterproofing methods of the top of a new wood floor on an aluminum boat, but couldn't find one or a topic that explained why. Right now I am asking for knowledge/understanding of the matter...
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    Need to Verify items listed for replacement on 1990 Johnson 90 HP VRO outboard.

    Just acquired an aluminum fish & ski boat in good condition for a good price, knowing certain important items need to be replaced on the 1990 Johnson 90 HP VRO outboard. Model #: VJ90TLASB It came with a service facility inspection report invoice from a local service shop that has a good...
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    Boat Inspection - Drive/Engine system

    I am currently planning an inspection of a 1997 Sea Ray 190 with a mercrusier 4.3L V6 engine consider as a project boat to purchase. I've already created a thread involving the fiberglass hull/structure inspection items for checking. However, I'm needing in this forum topic to focus on the items...
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    Possible project boat - Structure inspection

    Needing to verify the items that I will need to check for boat inspection for a possible purchase to be intended as project boat focused on mechanical restoration. I'm wanting to get back into boating with a less fiberglass repair filled drama boat. It might happen, but goal is to minimize the...
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