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  1. Scott06

    2002 5,7 Mercruiser exhaust manifold keeps cracking - 5 times this summer

    I think one of the guys here Ted was chasing a water flow issue between twin engines that ended up being zebra mussels growing inside passages in the drive or bellhousing. What ever it is a Lou said this is one of the more perplexing issues seen on this forum. You are not missing anything...
  2. Scott06

    1997 5.7l water in oil. replace?

    A lot of people have JB welded cracks on the outside of the block no issue. The ones in the valley you wont be able to successfully jb weld to hold up for long. Your jasper engine is a vortec block/engine. The term vortec (8 bolt intake / vortec heads) is just a street identifier for a 96 and...
  3. Scott06

    1997 5.7l water in oil. replace?

    In addition to what scott says worry about the core plugs even in fresh water. The steel ones will eventually corrode through in fresh water they are just steel. Doesn't make much sense to not replace them for $35-40 bucks while you have the block out as there are 2-3 behind the flywheel. Some...
  4. Scott06

    runny/liquid grease in bellows?

    After changing in the fall, First run of the year I typically get some level drop as the air works out. Then after that it I stable rest of year. Onky time it dropped was when I had fishing line in the prop seal …
  5. Scott06

    I/O (Sterndrive) Conversion to Outboards

    These are direct injected i would assume. since the timing of injection inhibits detonation they can use really high compression ratios again. Always a lot of discussions on compression on the muscle forums I am on. One of the engine builders mentioned difference between 9.5 and 11:1...
  6. Scott06

    runny/liquid grease in bellows?

    That doesn’t look like enough to be gear lube. Grease and gear lube smell different. Pressure test the drive see if inout shaft is leaking but that looks like a fairly typical separation of the oil from the grease . Would not worr6 about what I see there. did you gear lube bottle loose level?
  7. Scott06

    1997 5.7l water in oil. replace?

    Michigan motorz has new and rebuilt engines. you could get a running truck engine strip it to the long block - swap head gaskets, freeze plugs and circulating pump to marine and go that route. This is usually the cheapest way. I got a partial engine package from Michigan Motorz in 2015 , swapped...
  8. Scott06

    I have a leak.

    Before u get too worried go through and tighten the hose clamps on the cooling water system quite possible one of them was not tight enough or loosened up with heat and cooling cycle
  9. Scott06

    Gen II service same as Alpha one?

    As bondo mentioned same to remove as a gen one drive only diff is disconnecting the speedometer tube by the shift lever. There is a little white or grey button to push in and release the tube end from fitting on drive
  10. Scott06

    Whale tail Question

    These two are spot on. I ran a dole fin on my previous boat (17 ft sea ray 3.0). It did help with planing until it cracked my cav plate… on a 50 hp toon any improvement it wishful thinking. Try it with and without, if it does any thing positive would suspect that it is covering a motor height...
  11. Scott06

    Cut out Switch Test.

    great test it with an ohm meter before putting it in
  12. Scott06

    2009 Tahoe Q5i, changing gear lube and what type

    you will need a pump too, fill from bottom up
  13. Scott06

    3.0l not accelerating/boggy

    Some tool rental places have them in a tow behind size. If you have a beam in your shop you can use a a chain fall. A often overlooked way is a wrecker with a boom, basically the cost of a tow
  14. Scott06

    Gimbal bearing puller

    Thanks I already made a puller with the swivel type axle bearing puller. Bought a good bearing puller set and threaded rod. This gimbal already snapped the jaw off my BF slide hammer so its in there good
  15. Scott06

    a boat

    Yeah when I sold a good working boat, add said everything worked willing to water test. As mentioned 2.5/.3.0 are easiest to drain. Needs a carb rebuild means it doesn’t run well. Compression is not great wonder if done after it is hot it will be higher. when selling a boat I would not water...
  16. Scott06

    1989 Mercruiser 2.5L 120HP motor overheating trouble shooting

    A carb no it doesn’t get a kit from mikes carb parts. Otherwise yiu are throwing another unknown carb on it. stop throwing parts at it do it right do it once. is this the engine that may have fuel system contamination?if that is not fixed doesn’t matter what carb you put on it it will get...
  17. Scott06

    Cut out Switch Test.

    That’s what she said,.,yes without the stumble to unload the propthe back cut on the dog clutch teeth will not pop out into neutral. I think you have the old style switch not sure how much of an upgrade to the new style… if it requires new shift plate. if not local boat yard can prob find used...
  18. Scott06

    1989 Mercruiser 2.5L 120HP motor overheating trouble shooting

    As mentioned Maybe jets could be different. Why not rebuild the one you have
  19. Scott06

    Cut out Switch Test.

    Yes depending on how long you hold it, it should stumble if you keep holding it it will kill it
  20. Scott06

    Upper and Lower Drain Plug Merc Sterndrive Alpha 1 Gen 1 Question

    Don’t waste your time.take the outdrive off for the winter do the pressure test at your leisure over the winter. last fall when i went up to take the boat out, put boat in water off the hoist, saw an oil slick. my boat have never lost any gear lube… gear lube Is an inch low. Had fishing line...
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