Search results

  1. G

    2015 Mercruiser 4.3 EFI issues.

    Sorry for the delay in getting back to this thread. Made it over to the boat. Throttle body was covered with the arrestor assembly, and engine cover and boat cover in place at all times so no water intrusion that way. I took a socket and my long handle ratchet and turned the engine over by...
  2. G

    no oil after cylinder head recondition

    Lifters should pump up if there is oil pressure. If they are shot, they may not pump up, but would still send oil up the push rod. Did you stuff the tips of the push rods full of Molly break in lube or grease? There is not a lot of oil pressure or volume in the push rod. Chevy push rods are...
  3. G

    2015 Mercruiser 4.3 EFI issues.

    Just thinking out loud here, would an exhaust manifold jacket full of water with an internal crack leak that much water, over months down the manifold and into whichever exhaust valve was open? There is a central knob (blue) to drain the cooling jacket down, which was not done prior to sitting...
  4. G

    2015 Mercruiser 4.3 EFI issues.

    Thanks for the reply. We did a new impeller and gear lube. I've got a fuel pressure tester so I'll check press at the rail. i Haven't been back over to help him but will try this week. The boat has been sitting for 9 months so the oil that came out of the pan had ample time to separate. No...
  5. G

    2015 Mercruiser 4.3 EFI issues.

    Helping my friend get his boat he purchased last year sea worthy. He had it out a few times, both ending in issues. First the gear oil resevoir leaked and set of an alarm. Would this cause the engine to go into limp mode! New reservoir installed. Second issue, low voltage. Diagnosed as...
  6. G

    2002 Mercruiser 5.0 EGR pipe

    I think I will leave it as the intake probably needs the heat for proper carb operations. At 150* engine temps, that intake isn't very warm. Thanks for the thoughts.
  7. G

    2002 Mercruiser 5.0 EGR pipe

    Is there any negative effects from removing the EGR pipe (right side exhaust Manifold to intake manifold)? This is a 2 bbl carb model. I know on many EGR vehicles removing it can actually hinder performance as the diluted intake charge allows more timing. Not sure if the thunderbolt 5 system...
  8. G

    Upper bearing preload

    Took to a boat mechanic today and he said I am good to go for the preload procedure.
  9. G

    Upper bearing preload

    Thank you for the input. I miss named the "spacer" as race housing. All the parts are here and accounted for.
  10. G

    Upper bearing preload

    Alpha 1-Gen2 OM517265 (2002) (230 hrs) Hello forum, 1st post here and could use some help. Pulled the lower to replace the impeller. Then pulled upper to inspect bellows and gimbal bearing. Bellows had about a 1/4 cup of gear oil. Ordered an upper seal kit. Removed the nut and tension...
Top