Search results

  1. Scott06

    1992 Mercruiser 4.3 w/ balance shaft and 1 piece rear main seal swap to newer year Vortec.

    As others have said the 5.7 swap is very doable if you have 5” additional space in front of the engine. and the side motor mounts move forward bout 4.5” I did a 4.3 5.0 swap. Took all accessories over wiring harness etc used a partial engine package from michigan motorz and added exhaust...
  2. Scott06

    Power steering fluid leak

    Had the same thing on my neighbors volvo 4.3 last summer couldnt find the PS leak every hose clamp on that engine was loose.
  3. Scott06

    Engine struggles to turn over

    Great
  4. Scott06

    Mercruiser 4.3 cracked intake manifold

    I believe michigan motorz sells that intake
  5. Scott06

    Mercruiser 4.3 cracked intake manifold

    Is that a water passageway or exhaust cross over? If that has raw water in it then yes that is what did you in. At this point get the sludge out and replace with kero and oil as quickly as possible, likely you will be ok bearing wise. Only one way to find out... be prepared to do 3-4 oil changes...
  6. Scott06

    Carbed Mercruiser 260 5.7L Missing Above 4000 RPMs

    A couple of troubleshooting thoughts come to mind. - measure fuel pressure when this happens - you mention the new carb worked for three times then started acting the same- possible that debris in fuel system pugged this carb same as the Q-jet? Might be worth lifting the fuel bowl cover to...
  7. Scott06

    Difference between 4.3 engine 090 block and 090M block

    this is more like GM inching its way to insanity. I can understand one or the other system but to have some fasteners metric and some inch on the same block is goofy.
  8. Scott06

    Head gasket? Cracked head?

    Did you look at michigan motorz re lead time? i think you will be wasting your time jb welding that crack
  9. Scott06

    Head gasket? Cracked head?

    I would replace all of it including the manifolds. Not much cost diff between a short and long block .
  10. Scott06

    Holley carb on Volvo Penta 3.0 GSM-A will not idle

    Did you adjust the throttle linkage to close all the way or disconnect it ? At 1000 rpm youll be off the idle circut and into the transition circuit so the idle mix adjustment wont matter not sure if these holleys have a idle air bleed that bypasses air around the throttle blades ? Did you...
  11. Scott06

    1998 4.3gl engine replacement with Edelbrock 4B carb

    Since these double flare fittings are the same as brake lines probably a decent auto parts store would have them or...
  12. Scott06

    Carbed Mercruiser 260 5.7L Missing Above 4000 RPMs

    If you are getting 4-6 psi of fuel pressure the pump , filter , and delivery system are doing their job and a new fuel pump wont help you.
  13. Scott06

    Difference between 4.3 engine 090 block and 090M block

    the 090 M block uses metric M10 threads for the following flywheel cover bolts and studs (2 studs for ground wires) starter bolts ( starter will work just need correct metric starter bolts) side motor mounts depending on how your fuel filter mounts two of these may be studs a decent old school...
  14. Scott06

    Omc 140 Rochester 2v Carb

    I used carb cleaner dip in a harbor freight ultrasonic cleaner then chase all passages with a stiff wire.
  15. Scott06

    Oil Pressure Below Mercruiser Limits Per Manual

    To me i think this means you dont have the correct bearing clearances on the reman or possibly a oil gallery plug was left out. Maybe try 15 or 20 w 50 and see if the pressure comes up. What were the bearing clearances when the engine was assembled ? Hate to say it but to me i would be...
  16. Scott06

    5200 question...

    dont worry about it you are fine with the way you did it. Thats what i did with mine a few years back still rock solid
  17. Scott06

    Buying a used boat anxiety-talk me down.

    very nice the 4.3 should do well in that boat is it carb or mpi ? Thats a good size interior
  18. Scott06

    1993 MerCruiser 4.3L V6 RAN OUT OF OIL

    Not high oil pressure pushing out the rtv but if you had water in the crankcase and it got over full with milk then maybe
  19. Scott06

    Engine replacement

    those shutters look fine. You must have had water in through the carb or the exhaust. Maye sure you check out your intake manifold for corrosion and cracking in the water crossover (under thermostat) that wouldnt lead to water in the cylinders but rather in the oil. Now is the time to change...
  20. Scott06

    3.0l bogging down only under load!

    There is no load on the engine in neutral so it really doesnt mean anything reving up in neutral. Likely you have a fuel supply issue related to clogged fuell filter (which is in bottom of fuel pump on a 3.0), or have clogged carb passages and a carb rebuild is in order. WHen you open the...
Top