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  1. Lou C

    Mercruiser 4.3 Vortec Backfire and no start

    Yep you can do it. 1970s auto shop 101. Get a timing light & a Mercruiser shop manual.
  2. Lou C

    Need help with transom repair...

    use 4200 or lifeseal if you want to be able to remove it in the future.
  3. Lou C

    Small Engine Forum Recommendations

    If it runs better when you pull the choke out partway, then the engine is running too lean, might need a carb cleaning. some of the best you tube channels for small engines donyboy73 steve's small engines check them out, both very good. small engine carbs are pretty easy to rebuild.
  4. Lou C

    Mercruiser 4.3 Vortec Backfire and no start

    Yep he explains it pretty well. You have to make sure that when the line on the harmonic balancer lines up with the zero or TDC mark on the timing chain cover that the #1 cylinder is at TDC of the compression stroke, that is, both the intake and exhaust valves are closed. You can take off the...
  5. Lou C

    1987 Rochester quadrajet

  6. Lou C

    1987 Rochester quadrajet

    Great glad to hear it. We are still about 6 weeks away from the weather being nice enough to start up the I/Os, still gets too cold at night.
  7. Lou C

    MerCruiser 496 HO 2008 - Engine Alarm (constant sound)

    You will charge batteries faster if you are just keeping it on either #1 or #2 otherwise you are asking the alt to do a lot all at once. Having said that though normal charging is approx 14V. Oil pressure, while some may say the Chevrolet small block only needs 10 psi per 1000 rpm, that is...
  8. Lou C

    Mercruiser 4.3 Vortec Backfire and no start

    Ok then not like Delco EST I guess
  9. Lou C

    MerCruiser 496 HO 2008 - Engine Alarm (constant sound)

    In that pic of the gauges is your engine running? If so I’d be concerned about low oil pressure and low charging voltage. The engine temp isn’t too high but it looks like either you have low water flow to the starboard exhaust or the elbow is clogging on that side…
  10. Lou C

    Mercruiser 4.3 Vortec Backfire and no start

    That’s how I did my old Chevrolet 4.3 V6 after I replaced the cyl heads but I have the old Prestolite points distributor. That will get the distributor in the right position but I’m wondering if there is a special timing procedure with the Merc electronic ignition since they don’t use a...
  11. Lou C

    2006 Volvo 5.7 osi-d crank no start

    That or severe detonation, lean fuel mix, over propped. I think that’s more than a distributor cap issue. Look further to prevent a recurrence
  12. Lou C

    2006 Volvo 5.7 osi-d crank no start

    That definitely looks overheat related are you re-using the same heads if so did you get them checked for cracks at a machine shop? Both of mine were cracked and the cooling passages were getting eroded from raw water cooling so I replaced them with reman heads.
  13. Lou C

    Are we in trouble?

    The only way an I/O is the way to go: boat is old enough not to have complex and expensive cat converter exhaust owner knows and understand GM small block engines, can deal with difficult access and extra maintenance required by the I/O design and can do much of their own work Any other...
  14. Lou C

    Are we in trouble?

    If you don't want to worry about that kind of grief ever again, strongly consider not buying an I/O boat, you will be far better off with a late model boat with an outboard, especially in that size range. Less maintenance Safer Better performance Yes initial cost is more but well worth it.
  15. Lou C

    1987 Rochester quadrajet

    Usually mine will take about 2-3 crank overs before it fires after being stored for 5 months in the off season. Open throttle all the way to let the choke close pull handle out (if OMC remote control) and advance throttle about 1/3 to provide fast idle (marine carbs to not automatically set fast...
  16. Lou C

    Need help with transom repair...

    If you want to do it only once coat it with epoxy resin esp the edges then paint with several coats of paint to give the epoxy UV protection.
  17. Lou C

    Water coming in through exhaust

    VP removed those flappers in 1999 AFAIK so yours probably had em. However the way they were installed (they just used the original OMC Cobra design, same parts etc) there were 2 holes in the top of the Y pipe on each side. There were two grommets on the holes and a pin that the flapper rides on...
  18. Lou C

    1987 Rochester quadrajet

    I do think you need those tubes…I’d ask on Cliffs High Performance Quadrajets As far as batteries I have two Deka group 27 dual purpose batteries & a Blue Seas 1,2,1+2,off switch.
  19. Lou C

    got a question about a future V6 to V8 repower...

    Ouch! Well if I wound up with a Vortec V6 I’d have 25 more hp at least
  20. Lou C

    Connecting a electric fuel pump to 5.7LX

    Maybe switch the solenoid to a 4 terminal one that way you can wire it the way Merc did it originally. There are 3 terminal and 4 terminal solenoids. My old starter abs the new Arco PMGR starter I put in a few years ago both have 4 terminals. The 4th is not used on my engine because it has the...
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