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    Mercruiser vs Chevy 4.3 timing cover problem

    Bought a 1995 mercruiser 4.3 balanced shaft project engine or what I thought was a mercruiser engine but turns out it's a automotive block that was swapped in at some point because it still has sensor on the side of the head, oil drain plug off to the side, It was a real mess of an engine...
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    Starting an OMC 5.7 GM out of the boat

    Picked up a project boat recently with the OMC 5.7 GM engine. I've pulled the engine out of the boat and it's on a pallet now. I'm trying to figure out how to jump across the main plug for the ignition to make spark so I can attempt to start this engine. I believe on the mercruiser plugs it's...
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    Mercruiser 3.0 TKS question

    Does anyone know if I could ditch my TKS CARB and just go back to a standard electric choke mercarb while still using the TKS wiring harness? I've had nothing but problems with this TKS carb and am thinking about just purchasing a reman mercarb with electric choke. The TKS plug in the harness...
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    Mercruiser 3.0 shaking at front motor mount

    As sort of an extension to my previous post where I was having trouble with installing a new gimble bearing which was figured out. We took the boat (2006 bayliner 175) out for a week long camping trip, the boat ran great except for at idle in neutral it would shake a bit and clatter at the...
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    Alpha one gimbal bearing housing damage

    Wow i feel like a complete idiot. I'm finishing up my 3.0 block swap and am at the tail end of the project. Motor is in, Today was gimbal bearing and outdrive installation day. I centered the bearing by hand and then with my bearing install tool i proceeded to smack it in. Unbeknownst to me the...
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    Mercruiser 3.0 Distributor installation

    I am in the middle of swapping my 3.0 block for a good one. I am a little confused on how to re-install the EST distributor. I tried installing it and firing it off and it wanted to start but just backfired really loud. I tried that twice until realizing something was way off. I understand i...
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    Boston Whaler montauk 17 fiberglass cracking

    I'm looking at a 1986 boston whaler montauk 17. It's been sitting on the side of a friend of a friends house unused since 2008. Motor is a 90hp johnson 1990 vro outboard that overheated in 08' which is why it's sat for so long. I'm told it runs, but runs rough and overheats, so I'm assuming it's...
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    1994 Yamaha T9.9ELHS Control cable replacement

    Hello, now that I've got the main motor all squared away I'm turning my focus onto the 9.9 kicker motor. First thing I noticed is its in need of new throttle and shift cables. Looking on line for some it seems as though they have two different types one being listed as "cable" and then the other...
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    1988 yamaha 200hp ETXG oil injection questions

    Working with my dad on a bit of a project he probably shouldn't have gotten into. It's a 1989 pursuit 2000 with a 1988 yamaha 200hp model ETXG. This boat has been stored and hasn't ran for 8yrs. The original owner who we got it from fogged the cylinders and drained the fuel tank. Amen to that...
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    Sleeping 1989 Yamaha 200hp

    I just acquired a 1989 Tiara Pursuit that has a Yamaha 200hp with 384 original hours. The original owner told me he fogged the Cylinders 7-8 yrs ago when he parked it. He also drained the fuel cell. Well It's time to wake it up! A few questions I have are: #1) should I rebuild the carbs before...
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    Replacing yoke assembly Alpha one Gen 1

    I just acquired a 1987 project boat that came with a Alpha one Gen 1 outdrive. I pulled the drive off and behold some U-Joints that are the scariest I've ever seen! Covered in chunks of rust, massive corrosion. just bad. So I bought a nice used yoke assembly online and by the looks if it, it...
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    Alpha one 1994 TRIM Rams frozen in time

    Boat has sat for several years with the out drive in the UP position. would not TRIM down, so I took them off the rams and let some PB blaster soak for a few days with no effect. Still stuck. I tried hitting one end with a rubber mallet, went down a little with oil shooting out the lines, but...
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    Gen 2 drive oil reservoir audible alarm wiring

    Does anyone know if the DDIS wiring harness has wiring for the two wires on a Gen 2 drive oil reservoir? Any help would be appreciated!
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    Cracked 2.5 block options

    After a bunch of work to this motor I failed to notice a drip that finally turned into a big drip that finally caught my attention. I just found out my 2.5 block had a crack in it up and under the manifold. Are there any options to repair it? The motor runs pretty good.
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    Mercruiser 120/2.5 compression readings

    Did a cold and warm compression test today on my 120. What would you say about these numbers? Healthy? Cold: Cyl#1 (105psi) Cyl#2 (110psi) Cyl#3 (107psi) Cyl#4 (102psi) Warm: Cyl#1 (115psi) Cyl#2 (125psi) Cyl#3 (125psi) Cyl#4 (115psi)
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    Hot wiring a 3.0 on the garage floor

    Wondering how I could start this motor out if the boat? Got fuel tank hooked up, got my battery hooked up. Tried just jumping it at the starter with my HF starter switch but it just cranked and didn't even try to fire. This has the EST ignition.
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    3.0 Block identifying and swapping parts

    Trying to find out what year this engine is block#3915991 it came out of a 1989 but I suspect it may not be the original engine, the coupler is smoked, I removed it and it is not the modern triangle syle one its the other circluar kind with several bolt holes. I have a 1997 3.0lx cracked block #...
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    MERCRUISER 3.0 Fresh water cooling tank

    I have a good used heat exchanger made by San Juan engineering for my 1991 3.0, I'm now looking for the coolant tank as seen in picture I attached. Does anyone know the OEM part number for this tank or where to get one? Any help would be Much appreciated!
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    mercruiser 3.0 block swap compatible years?

    I have a 1997 Bayliner 1950 with a cracked block 3.0LX. I have a good 1988 short (bare) block and am wondering if I can swap all internals except the cam from the 97' into the 88' block?
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    yamaha 50hp 2-stroke what carbs do I have?

    Hey guys too make a long story short, I broke off a piece of linkage on the original carbs on my 98' yamaha 50hp 2-stroke, so I sold them online for parts & used that $ to buy a used set to rebuild, the guy said they were off an 05' 50hp 2 stroke. They look identical to the ones I had. Here is...
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