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  1. Lou C

    Selling Newer Boat For Older Larger?

    It depends on your tolerance for projects; & the condition of available boats. The biggest problem you’ll find is water intrusion from the opening for the outdrive rotting the transom and rain water rotting decks & stringers. I wouldn’t do it. Once was enough for me. Next boat will be nearly...
  2. Lou C

    Hello all, I want to install a remote oil filter mount for my 4.3 V6, is it neccessary to replace the filter mount bypass valve?

    this is only used on the V8s, it isn't used on the V6.
  3. Lou C

    Hello all, I want to install a remote oil filter mount for my 4.3 V6, is it neccessary to replace the filter mount bypass valve?

    More to the story.... I found out (and I THOUGHT this was the case) that the 4.3 is different than the small block V8s. It does not use the removable adapter with 2 bolts and the bypass staked into the adapter. The stud for the filter is threaded right into the block and the bypass is staked...
  4. Lou C

    Help !! Mercruiser Alpha 1 Generation 1 Power Steering Actuator

    https://www.marineengine.com/parts/omc-parts/omc-boat-parts.php?year=1988&hp=4.3&model=434APRGDP&manufacturer=OMC+stern+drive&section=Power+Steering+Cylinder ok it does look like they are slightly different, here is one from an OMC parts source that is the same as mine (in addition to the used...
  5. Lou C

    Help !! Mercruiser Alpha 1 Generation 1 Power Steering Actuator

    I replaced my whole unit with a used ebay one. Inside that control valve are seals that start to leak P/S fluid, one thing to keep in mind is that there is a grease fitting on the back side of most of those units. If you grease them too much it can make the seals fail inside. You only need a...
  6. Lou C

    AQ125/270 Still overheating (PLEASE HELP)

    Is the exhaust manifold & elbow clear? They get clogged with cast iron flakes over time. Water has to enter & exit the raw water side of the heat exchanger. Disconnect the feed hose from the heat exchanger to the exhaust manifold & hook up a garden hose to it to test; you should get good flow...
  7. Lou C

    Help !! Mercruiser Alpha 1 Generation 1 Power Steering Actuator

    When I did mine I pulled both exhaust manifolds and the only issue was the cotter pins that OMC & Volvo used to retain the mounting bolts; Merc used a lock plate; not sure if they are easier to deal with. That & the 2 that are under the clevis. The 4 cotter pins from hell! About the control...
  8. Lou C

    Help !! Mercruiser Alpha 1 Generation 1 Power Steering Actuator

    I have the same unit on my OMC Cobra, except it was painted OMC grey. Guess what, the control valve is the same old Bendix type that was used on Corvettes and Mustangs, from the 60s well into the 70s (for the Corvette, till the '84 came out). The parts to rebuild the control valve (the part...
  9. Lou C

    Volvo Penta 7.4 overheats

    Wow I'm impressed that you could do that, at 82! The plastic piece is in the pivot housing, if you can pull the drive, you can replace it. They can crack although my old Cobra uses the same design (same exact plastic piece) and as long as I drained the raw water out for winterizing here in the...
  10. Lou C

    Hello all, I want to install a remote oil filter mount for my 4.3 V6, is it neccessary to replace the filter mount bypass valve?

    these are marked well so that you can get it right, the first time!
  11. Lou C

    Hello all, I want to install a remote oil filter mount for my 4.3 V6, is it neccessary to replace the filter mount bypass valve?

    Just a follow up on this topic I found out the block adaptor in the kit I got from Michigan Motorz was made by Canton Racing in Ct. So I called their tech line and asked the question of whether change the bypass valve. They said I could change the bypass valve to the 30 psi unit, or use their...
  12. Lou C

    Volvo Penta 7.4 overheats

    I think you might have a little colony of slimy creatures inside your water intakes! Since I pulled out that plastic screen I've been able to clean out the water intakes just using the tool I made up without having to split the drive like I did some years back. Not sure if the holes on the Volvo...
  13. Lou C

    Volvo Penta 7.4 overheats

    Is this boat docked in salt water for the season? If so you can have marine growth inside the water intake area, and it will restrict the inward flow of cooling water to the impeller. In this case you'll have to split the upper and lowe drive housings and inspect that area and any other...
  14. Lou C

    Hard starting 4.3LX, normal or not?

    We had one just like this, 1975 Olds Delta 88 with a 5.7 Olds V8 and the Turbohydramatic 400 trans. It had the 4bbl Quadrajet just like my boat but had the hot air heated choke which sucked air through a passage in the intake manifold heated by the exhaust cross over. Worked great, in temps down...
  15. Lou C

    Hard starting 4.3LX, normal or not?

    I would start it up with the flame arrestor off and observe the operation of the choke. Cold engine it should close all the way, or at least almost close all the way. Right after it starts, a vacuum operated valve will pull the choke open a fraction so the carb gets enough air to keep running...
  16. Lou C

    Hard starting 4.3LX, normal or not?

    Once you've owned a Chevrolet and an Olds with Rochester carbs and that same divorced choke and live in a cold winter climate (like I did in the '70s) you learn how to make those chokes work. The problem with using a divorced choke in marine applications is that the engine runs cooler and takes...
  17. Lou C

    Good Tow Vehicle ? - Tow Rating ?

    I am a fan of previous gens of GM land yachts as well as those from FoMoCo. If I could find a nice 94-95 Chevy Impala SS I'd buy one in a heart beat. I am not so much a fan of modern vehicles, after you own one for a while the designed in nanny devices start to drive you crazy and I hate...
  18. Lou C

    Can I replace my 1994 Mercruiser 5.0 2BBL (305) with a 1998 5.7 2BBL (350) ?

    Agreed if I were doing an engine replacement on a boat with a 5.0 Chevrolet I'd for sure go with a 5.7, it is the exact same physical size and weight but has much more power potential, also make sure to go with a 4bbl intake and carb, don't cheap out with a little 2 bbl carb. For carbs, you can...
  19. Lou C

    4.3 vortec engine ( water in oil )

    that's why I like the old pre-Vortec all SAE fittings mechanical fuel pump 100% reliable no leak prone intake gaskets, they never leak on these yeah 25 hp less, but doesn't bother me
  20. Lou C

    Hard starting 4.3LX, normal or not?

    Yep this is the way electric fuel pumps work on old school engines that originally had mechanical fuel pumps. Powered off the starter till the engine fires then as soon as oil pressure builds it is powered through the oil pressure switch. Make sure all the electrical connections for the fuel...
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