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  1. Lou C

    What can cause this to shift bellows ?

    Is the boat kept in the water? It looks like marine growth to me. I can see the holes. Do you have beavers or muskrats?
  2. Lou C

    What can cause this to shift bellows ?

    Almost looks like it got twisted somehow. I’m not really familiar with the Alpha drives I’ve had an OMC Cobra for years they use a totally different design just the same as the Volvo SX with a tube that’s threaded into the transom mount with the actual bellows above the waterline inside the boat.
  3. Lou C

    What can cause this to shift bellows ?

    Is that OE or aftermarket?
  4. Lou C

    Burned valve or worse 1997 5.7 LX

    I would visit some hot rod forums I bet there is someone who wanted to not run exhaust heat under the carb in hot climates. This was needed in automotive applications to provide heat for the old style well type (divorced) choke and also prevent carb icing in cold weather. Mine doesn’t get that...
  5. Lou C

    ANOTHER WATER IN OIL QUESTION

    Agreeing with Rick I used Fel Pro head gaskets when I did mine 4 years ago and no sealer you just have to get the surfaces REALLY clean. I did use some Permatex Aviation sealer on the intake gaskets due to some minor pitting on the old intake manifold and also it helps hold it in place while...
  6. Lou C

    Temperature gauge issues? Can't get a temp reading?

    I’ve never seen one that bad even here in salt water! That looks like someone tried to use an automotive one in a marine application
  7. Lou C

    Partial Power... Part of the Time!

    It’s supposed to be 6* BTDC for base timing, plugs are AC MR 43T gapped to .035. Yes you run it at 3200 in Neutral to check total timing advance.
  8. Lou C

    Burned valve or worse 1997 5.7 LX

    With the old school well type choke you need the exhaust crossover with an electric choke you don’t .
  9. Lou C

    Replaced rubber impeller now won't shift to neutral??

    There are several: 1) safety no concern about fumes in the bilge, a failed bellows letting water in the boat or a failed cooling hose flooding the bilge 2) much easier to winterize 3) easier to service 4)better in shallow water 5) for the same hp, approx 400 lbs less weight & better performance
  10. Lou C

    Low Engine Temp??

    BTW, I just changed my 1988 OMC 4.3 over to a 140* stat. I wanted to years back but could not find one that fit. After doing some research I found that OMC & Volvo used the same thermostat housing for years. On the V6s and small block V8s they both used 160* stats. However, Volvo used a 140 stat...
  11. Lou C

    Low Engine Temp??

    Yep, we've had a '98 Jeep 4.0 since new, one of my favorites.
  12. Lou C

    2002 Volvo Penta 5.0 idles great then dies in gear

    Glad to hear the outcome. I found that I average approx 6 years between rebuilds.
  13. Lou C

    1989 OMC Cobra 350 overheating problem

    I'd test it as I described above. A bad overheat or loss of cooling water will usually toast one of them.
  14. Lou C

    Low Engine Temp??

    I love those old inline 6s, I remember when that was the standard engine on most GM midsize cars, the Chevy 250 cu in six.
  15. Lou C

    1989 OMC Cobra 350 overheating problem

    Keep in mind that idle speed will affect impeller output just like it affects oil pressure. It sounds like its idling a bit slower than normal. Set your idle at 600 and then look at it again. Something there does not add up. You are saying that it ran at the 1st hash mark which is probably 140...
  16. Lou C

    1989 OMC Cobra 350 overheating problem

    Well if you remove the housing to back flush, then hook up the muffs to flush from the bottom up, see if anything comes out of the other port in the impeller mount. I doubt it but I guess you never know. One thing I always do after replacing a Cobra impeller is run it on the water hose with the...
  17. Lou C

    1989 OMC Cobra 350 overheating problem

    That is the wrong stat, a 180* stat is too hot for raw water cooling, the standard stat for OMC Cobras was 160*. This is fine in freshwater but in salt water I use a 140* stat now, I was able to find one that fits the same OMC/Volvo stat housing (for a V/P appliction, the 7.4 liter V8). The true...
  18. Lou C

    Fried the 4th impeller kit? (OMC 2.3)

    I used to use the Tempo rectangular muffs and what I found was that the rubber tends to be too stiff to conform to the lower unit. The Merc/Quicksilver ones are much softer rubber.
  19. Lou C

    Low Engine Temp??

    Even just a flake of rust or a bit of sand can keep it from closing
  20. Lou C

    1989 OMC Cobra 350 overheating problem

    I would carefully remove the impeller housing and disconnect the raw water intake hose at the thermostat housing. Stick a garden hose in that hose and back flush the hose and see if any more impeller bits come out. Then remove the stat housing and test the stat in a pot of hot water, it should...
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