Search results

  1. Scott06

    mercruiser 888 383

    You need a marine ignition like a mercruiser thunderbolt or delco est . Basically all you keep off the 383 is the long block. You will also need a marine harness unless the one off the old engine will work. I think michigan motorz sells the ones they use on their partial engine package .
  2. Scott06

    mercruiser 888 383

    Take off the automotive fuel injection and put a 4 bbl intake and marine carb on.
  3. Scott06

    1997 5.7l water in oil. replace?

    They may be GM makes changes as they see fit and doesnt tell us... You also never know if a wrecking yard engine has been worked on either. Unfortunately you don't know what is in there till you look. And we all didn't think you needed pills to be crazy...
  4. Scott06

    What oil should I use?

    Agreed I switched several cars over from dino to synthetic over the years no issue, including my boat. After repower the warranty required dino oil for first 100 hrs. We are turnign this into another bottomless pit oil thread. The biggest issue OP should concern himself with is he has a flat...
  5. Scott06

    Winterizing 3.7l mcm 224 165 hp mercruiser

    Yes the aluminum block on the 3.7 necessitated a closed system with AF in block , heads and manifold. NOLA told you how to drain the water side of the heat exchanger where the raw water pumped up from the drive cools the AF before it is dumped overboard via the exhaust system. there are a...
  6. Scott06

    Winterizing 3.7l mcm 224 165 hp mercruiser

    Would also check the antifreeze freeze point with a tester. if boat is new to you you don’t know when it was last changed
  7. Scott06

    1997 5.7l water in oil. replace?

    The boat I have i repowered after PO didn't winterize. The block was cracked in the valley after 2-3 uses that spring crankcase over filled and shot oil all over the engine compartment...exhaust manifolds were cracked. Intake did not look cracked nor did heads but didn't want to chance it so I...
  8. Scott06

    Manifolds (Trying to figure out what I am looking at)

    Yeah 15” is fine use the 3” and get on with your life
  9. Scott06

    Alarm goes off when key turns: Low Drive Lube Monitor

    Exactly, last winter I got fishing line around prop seal, when I pressure tested shift shaft seal was also leaking … so I reassessed the whole drive. Most seals were in perfect shape, figured at this point I’ll be good for another 18 years
  10. Scott06

    Manifolds (Trying to figure out what I am looking at)

    I put this 1" plate in to put a O2 sensor for a Air fuel ratio meter could add that to the 3" . Also wonder of the 3 or 6" could be milled down. 6" milled to 4 " or 3" milled to 2" and used with another 3"
  11. 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...
  12. 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...
  13. 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...
  14. 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 …
  15. 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...
  16. 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?
  17. 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...
  18. 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
  19. 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
  20. 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...
Top