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  1. Lou C

    What´s the best replacement for AQ271C (or 570) 5.7 GM engine, ideally stroker?

    That’s standard GM practice (hydraulic tappet cam) and roller is big improvement over the previous style flat tappet camshaft actually. Roller is less prone to wear and nearly all GM small block V8s since 1955 were hydraulic lifter camshaft equipped. Just a few high performance applications...
  2. Lou C

    1990 (ish) Yamaha 3 HP only runs on choke

    Had a similar problem on a Suzuki DF2.5 (four stroke) but with the difference was it was brand new! The dealer replaced the carb but it was only marginally better. Then the factory rep took a look at it and removed a tin cover over the idle mixture screw and adjusted it slightly then filled the...
  3. Lou C

    1995 OMC 5.0L Winterizing

    Ok from the big hose clockwise, the next one comes from the raw water pump (impeller) and the 2 opposite each other feed each exhaust manifold.
  4. Lou C

    Oh this can't be good. MErcruiser 5.0L loud clicking.

    when I started reading your story my mind was going to....stuck valves...elbows not replaced....milky oil....its the old story of what happens due to lack of maintenance. I still think it can be done for less than that price. But you have to use who's available in your area I guess. Its worth...
  5. Lou C

    1995 OMC 5.0L Winterizing

    DECELERATION VALVE - 1995 OMC Stern Drive 5 502APHUB | Crowley Marine probably has to do with this little gadget....
  6. Lou C

    1995 OMC 5.0L Winterizing

    Well that's a mystery, I have a Rochester carb on my OMC, so I'm not sure. I'll have to check around.
  7. Lou C

    Changing Valve cover gaskets 5.0 GXI-e

    Are the center bolts nice and snug?(don't overtighten) this style (center bolt) is not known for leaks, like the older perimeter style was. In fact when I took my engine apart to replace blown head gaskets 3 years ago, the original gaskets from 1988 were still not leaking. I had an earlier Chevy...
  8. Lou C

    Engine Serial Number Decoded

    Agreed get the OMC factory shop manual, they are still available. The biggest problem with the Cobras is that there were problems with the first run of shift cables that were sticky and didn’t allow the clutch dogs in the lower unit to fully engage and that caused jumping out of gear and rounded...
  9. Lou C

    Volvo Penta SX-M drive Gimbal bearing obliterated and Gimbal Bearing Housing damaged

    Well that’s a good plan sounds like you have a good idea of what needs being done to put it into good shape so it’s reliable. By the time you’re done you’ll know it inside & out. And then if you do the required maintenance each season you won’t have repeated troubles. It doesn’t take that much...
  10. Lou C

    Engine Serial Number Decoded

    You’re welcome! The Cobra system is actually quite good when you learn and know the quirks of them. Mine has held up quite well in a tough saltwater environment.
  11. Lou C

    Draining engine block - Merc MX 6.2 MPI/Bravo 3

    these are your friend for this issue, these and patience.
  12. Lou C

    Draining engine block - Merc MX 6.2 MPI/Bravo 3

    All this multi hose clog prone nonsense could have been prevented by installing even just a half system from new. For shame Mercruiser! I'd never ever install a new or reman engine without one. No way do I want to deal with crawling around in the bilge to get at the plugs or having to pull off...
  13. Lou C

    1996 Volvo Penta 7.4 will not stay running

    I wondered if the Prestolite BID module could have been replaced with a Petronix? I've heard mixed things about those...thought about it but kept the points since I haven't really had trouble with them...
  14. Lou C

    Thermostat Housing Check Balls

    I guess for whatever reason that side clogs more easily so get a set of picks from Harbor Freight or similar and take some time digging out that drain hole. When it’s clear it will drain about the same as the port side. Since I really cleaned it out when I had the heads off 3 years ago I...
  15. Lou C

    Thermostat Housing Check Balls

    I ran into this with my old 4.3 after about 15 years of raw water cooling on the starboard side never on the port side. Port side always drained well starboard side was less or just a trickle. On the starboard side there is an additional fitting to change the angle of the drain fitting, I think...
  16. Lou C

    Winterizing

    I’ve always filled it from the fill plug with the dipstick just resting in the hole which allows air to escape so you can get the full amount of gear oil in (2qts). Check it with the dip stick then when full thread it in. Now quickly remove the gear oil pump and tighten the fill plug. Next...
  17. Lou C

    1996 Volvo Penta 7.4 will not stay running

    I think both OMC and Volvo used the Prestolite BID system for a few years but the modules for those are NLA so converting over to the Delco is about the only option. I still have the Prestolite points distributor which for me is not really a problem since I grew up with cars that all had...
  18. Lou C

    Engine Serial Number Decoded

    I did some more searching around and the APWXS equates to A=first run of engine/carb combination P=Power Steering which obviously you have WXS=1986 model year. The number starting with T is the GM engine serial # T= Tonawanda Assembly Plant. This is only really important if internal engine...
  19. Lou C

    Engine Serial Number Decoded

    can't answer year, what's the year of the boat? Look for the last 2 digits of the HIN that should be it the 432 means a 4.3 GM (Chevrolet) V6 with a 2bbl Rochester carb, 175 hp. P means you have power steering. The rest of the letters can give the year and any modifications done during the...
  20. Lou C

    Winterizing

    Yes the Permatex will work just as well. I bought a large can of the Evinrude stuff from Amazon, it will probably last long than I have this boat! Just remember you're dealing with an aluminum housing and don't have to get crazy with tightening these things, the only time they leak is if the...
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