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  1. Lou C

    Aq271c fuel feed pipe to Holley 4106 4bbl

    Holley carbs have a few different fuel inlet configurations, depending on the actual carb used. When I was working on a 4160 conversion on my OMC V6 I was able to find a preformed fuel line that worked perfect, a bit pricey though...
  2. Lou C

    help with running surge brake lines

    Also they may be assuming you are using stainless hard lines along the frame back to the axle, then a flex line to the axle, hard line across the axles, and flex lines to the brake calipers. While some use flex hose for the whole thing, I think its better to have flex lines only between the...
  3. Lou C

    4.3GL Engine draining ports

    For the manifolds it depends on if they are OE or aftermarket, but usually on the Volvo style manifolds there is the water intake port on the front and on the back side in the same spot there is a drain plug. Some OE Volvo ones have a plug in the middle of the underside of the manifold. If you...
  4. Lou C

    1997 4.3GS with Holley 4 barrel with flat spot on acceleration at 3500 rpm

    You know its possible that OMC and Volvo changed the carb # when GM went to the Vortec head design (1996 or so) and Holley never updated their catalog but supplied whichever carb OMC/Volvo switched to. A mystery, because even if you look in an older OMC or Volvo parts catalog you'll find their...
  5. Lou C

    1997 4.3GS with Holley 4 barrel with flat spot on acceleration at 3500 rpm

    https://documents.holley.com/techlibrary_carb_numerical_listing.pdf try looking here, you'll go cross-eyed but might find what you have lol. I looked and found "R75007-1" for the power valve they list 125-65...
  6. Lou C

    1997 4.3GS with Holley 4 barrel with flat spot on acceleration at 3500 rpm

    the one I have is: SAE J1223 80492-1 then under that 2057 If you go onto the Holley site looking for a new carb for the OMC/Volvo 4.3 V6 this is the carb listed but the OP obviously has something different.
  7. Lou C

    Anything I could do to prevent rusting of internal surfaces?

    When I did a similar repair (removed cyl heads due to blown head gaskets, found heads to be cracked and replaced them) the cyl heads were off for about a month. I usually leave the engine filled with marine antifreeze (raw water cooled) during the winter but did not that year because I knew I...
  8. Lou C

    Mercruiser 5.0 TKS vs 4.3 MPI

    Of course with the increases in fuel costs we did get a lot of European vehicles here throughout that time period, and one of my favorites was the Ford Capri (sold her as a Mercury). It was a really nice vehicle for the time with a Ford 1600 cc engine and the option of a 2000 cc. My cousin had a...
  9. Lou C

    Mercruiser 5.0 TKS vs 4.3 MPI

    These things are in our blood. They were on all the GM cars we drove back in the '60s, '70s and well into the '80s. While Holley always had the performance reputation for hot rodders etc, the majority of GM muscle cars from Chevrolet, Pontiac, Oldsmobile and Buick all came with Quadrajets. And...
  10. Lou C

    1997 4.3GS with Holley 4 barrel with flat spot on acceleration at 3500 rpm

    The odd thing is if you look on the Holley website, the carb that they sell as being set up for the OMC/Volvo 4.3 V6s is a 4160 that does not use a power valve but the main jets are bigger to compensate. I know because I have one, but I'm still using the Quadrajet on the engine at this point...
  11. Lou C

    High Idle After Overheat - 454 Mag Bravo Gen V

    The Quadrajet comes with a thick base gasket between the carb and the manifold, I'm wondering if the heat could have warped the gasket, or if the throttle cable is secured to any part of the engine that got hot and internally may have started to melt thereby preventing the engine from returning...
  12. Lou C

    Mercruiser 5.0 TKS vs 4.3 MPI

    While a lot of people have no idea how to set points, carbs in both the collectible car market and the hot rod aftermarket most certainly are not going away. There will be someone who knows how to rebuild a Holley or an Edelbrock for many years. Those of us who know the Quadrajet, however, might...
  13. Lou C

    Crank-driver raw water pump upgrade

    I see the belts also vibrating in sync with the impeller and hoses, are you sure that the harmonic balancer is not starting to fail (pulley run out on the crank pulley) and are the other pulleys aligned with the crank pulley? I know that when the harmonic balancer went on our '98 Jeep the belt...
  14. Lou C

    980 hours on engines - compression test

    lol if you 'fix' it too nicely you may never sell it.
  15. Lou C

    Mercruiser 5.0 TKS vs 4.3 MPI

    Modern vehicles and boats are meant for a 10 years life span as far as parts availability. So if that fits into your buying habits its fine. But if you buy old (ie the first gen of throttle body and EFI boats) that are 15-20 years old be forewarned. NLA will stop your boating season right quick.
  16. Lou C

    1995 OMC 5.0L Winterizing

    also keep in mind if you are going to test it with a hydrometer, the ones for ethylene glycol do not work on propylene glycol, there are special ones for PG. If you don't get colder than zero you can set your freezer to zero and do that test. If you do get colder than zero, you can try to find...
  17. Lou C

    Mercruiser 5.0 TKS vs 4.3 MPI

    the power/economy argument is not the most important thing to boaters. The most important things are: my boat won't start what do I do? my boat won't run right what do I do? my ECM or module is fried and the bean counters at Volvo Penta or Mercrusier made it NLA, now what do I do? this is where...
  18. Lou C

    1995 OMC 5.0L Winterizing

    -100 is good and I've seen some that were red. I usually use 4.5-5 gallons. I used to use the West Marine -100 but its expensive and hard to find now so I buy 3 gallons of Sierra brand PG antifreeze and mix it 50/50 with water.
  19. Lou C

    no cotter pin?

    If you are replacing or adjusting bearings pick up a few spare tang washers, they are commonly used on spindle lube hubs.
  20. Lou C

    Cobra SX outdrive winterizing

    http://shop2.evinrude.com/Index.aspx?s1=2tqclkccq1qrh523a2uuan5hf0&catalog_id=0&siteid=1 it is part #77 if it does not drain, disconnect the raw water hose that goes from the transom mount to the impeller housing. Hold it up and fill it with -100 marine antifreeze till it runs out the outdrive...
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