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  1. Lou C

    Cobra Outdrive Sucked Up Some Sand

    Ok if you have the complete outdrive off, then put muffs on it and flush it with the imeller housing removed so you can see if water comes out of the water port behind it. You will have to change the impeller anyway because it got worn from the sand you sucked up, the wear plate will for sure be...
  2. Lou C

    Never underestimate the power of the mechanical fuel pump

    Ok this is interesting because I tried to use a brand new Holley on my old engine after I rebuilt the top end. Had a lot of trouble with rich running that I could never solve. I actually pulled out the old Quadrajet and rebuilt it and it ran much better, then decided to replace the original fuel...
  3. Lou C

    Never underestimate the power of the mechanical fuel pump

    hmm now that is interesting.
  4. Lou C

    Cobra Outdrive Sucked Up Some Sand

    If its that badly packed, you also need to remove the impeller housing and flush it both from the water intakes up ward and from the raw water intake hose backward. With the impeller housing off you can see if water is able to flow from the water intakes to the impeller and from the impeller to...
  5. Lou C

    Cobra Outdrive Sucked Up Some Sand

    Bellows & gimble bearing and check the u joints carefully.
  6. Lou C

    Mercruiser 4.3 woes - help please

    Don’t forget to check the anti siphon valve on the gas tank. It’s a spring loaded ball valve that is supposed to shut off the fuel flow if the fuel line from the tank to the filter leaks. I had this same problem on my boat years back when we first got it. The engine would start and rev fine in...
  7. Lou C

    New Volvo 250 HP PY20

    I’m not ever giving up my 2 stroke yard equipment. Nothing is better for light weight good power and minimal maintenance. I have: Echo weed wacker, blower and hedge trimmer Husqvarna chain saw Toro single stage snow blower with Suzuki 2 stroke
  8. Lou C

    New Volvo 250 HP PY20

    The reason given in the article is to save fuel. The amount 'saved' is likely not even measurable, especially on a marine engine. Boaters do better with simple inexpensive to repair engines. Sounds like the electronic thermsotat used on some Benz and BMW engines. A perfect way to take a simple...
  9. Lou C

    Never underestimate the power of the mechanical fuel pump

    That is very odd. I had the OE pump on mine for about 30 years and then replaced it with a Sierra. Both worked fine, never had a flooding problem. One thing with the Q-Jet is that there is a hanger for the needle valve, and the bracket for the float has a couple of small holes, that hanger just...
  10. Lou C

    New Volvo 250 HP PY20

    more un-asked for complexity, that in the end, doesn't benefit much.
  11. Lou C

    new carb new issue

    I’d check for spark when this happens next time. You just want to cover all the bases
  12. Lou C

    new carb new issue

    If that’s fuel in the water it would seem that three possibilities exit: Electric choke not staying open Carb floats sticking or needle valve not holding Fuel pump pressure too high That’s way more than what you’d see from the idle mixture being too rich.
  13. Lou C

    Electronic Ignition and Shift Assist

    They sell an ESA that works with both points and the conversion electronic kits like Petronix. I replaced my old ESA when it stopped working about 6 years back with that one. Call them & ask but I’m my case I just continued using points.
  14. Lou C

    E10 fuel

    MOD EDIT - Political
  15. Lou C

    Urgent request: dealing with a fuel tank spillage on my '83/4 Islander

    Just make sure to sniff very carefully for any sign of gas vapor. Any sign at all do not start the engine or turn on anything electrical. Problem with gas vapor in boats is it takes a while to dissipate. Nothing to take a chance with.
  16. Lou C

    E10 fuel

    I have: 33 year old Chevy OMC 4.3 Five different 2 stroke yard engines Three 4 stroke yard engines All run fine on E10. Stabilize it don’t store more than a year
  17. Lou C

    E10 fuel

    If your gas tank had a lot of varnish build up figure on the E-10 gas starting to clean it out and that can clog filters, so I'd keep a few on board and the tools you need to change em. We went through the change over approx 15 years ago and I didn't have clogged filters but I had some red gunk...
  18. Lou C

    Fuses on a 1986 four winns.

    Look on the four winns site, they used to list wiring diagrams for older models (Sport Boat)
  19. Lou C

    Mercury 4.3 running rough - ideas?

    If you do wind up removing the elbows you can look inside the center exhaust passage for rust trails. There should be no rust there only black carbon. If you remove the manifolds you can see into the exhaust ports to determine if the exhaust valves are getting corroded. If so it’s time for a...
  20. Lou C

    Mercury 4.3 running rough - ideas?

    Like I said earlier when you remove the spark plugs look for rust on the electrodes. That, and disabling the ignition and EFI and crank it over with all the plugs removed. If water or even just a mist of water comes out it’s time to remove the exhaust. You must have the dry joint units so if...
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