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  1. Lou C

    7.4GL temp sender info needed

    I think these engines used a 140* thermostat vs other Volvo engines that used a 160* stat. I actually tried this same stat in my OMC because the lower temp stat is better for raw water use in salt water. And it does show on the gauge approx 120* at idle. At higher speeds it rises as expected to...
  2. Lou C

    Burned valve or worse 1997 5.7 LX

    I thought the exact same thing, what a nice installation. One day my engine room will look like that lol.
  3. Lou C

    Impeller challenged...?

    If you are careful you can measure that with a ruler and a small T square. I do have all the tools though. One other thing I did, was mark on the cable where it goes into the jacket, where neutral is with a sharpie. Then have someone spin the prop (engine off KEYS OUT) while I shift it into FWD...
  4. Lou C

    1987 4.3 OMC Alternator with 1 Wire Issue

    When I replaced mine I used an ARCO with the B+ terminal and Excite and Sense terminals, the hook up was easy and it has always worked well.
  5. Lou C

    Bow riders with best engine access?

    Glad to hear that Cobalt does a good job in their design!
  6. Lou C

    Bow riders with best engine access?

    beautiful boat! and yes the bigger it is, the more room around the same size engine in most cases. so tell me can you actually reach the starter? and how do you feel about the $5000+ price tag for the cat converter exhaust replacement? If in fresh water its a non issue but here in the salt, I...
  7. Lou C

    Bow riders with best engine access?

    I have see a few that have good access but its usually the larger boats that do, large bow riders, cuddies etc. You don't want the ones with the build in 'glass around the rear jump seats, or the fancy swim pad with the walk through or the flip seats that make the engine compartment 2/3rds the...
  8. Lou C

    High oil pressure smell of gas in oil

    And if you are using an advance timing light when setting base timing make sure the dial is on ZERO...this tricked me a few times....lol.... PS take a look at the center electrode porcelain on your spark plugs, the depoits on this will tell you if its running out of fuel (probably blistered...
  9. Lou C

    Exhaust Manifold Replacement

    Nope 100% salt water here in Long Island NY. Kept on a salt water mooring for approx 6 month season each year. In that pic I had just installed reman heads and new exhaust so everything was freshly painted.
  10. Lou C

    Impeller challenged...?

    The final adjustment should be done with the drive off using the OMC alignment tools, yep. First though you really should check the shift rod height in the lower unit. Next, the tool that holds the bellcrank at the 90* angle to the pivot housing goes on first then you use the shift cable tool...
  11. Lou C

    Exhaust Manifold Replacement

    if you want, take a new bolt for the manifolds to a hardware store, and have them match up the thread pitch, to 2 longer bolts. Get the 2 bolts, cut the heads off and cut a slot in the stub that's left. Then thread these in the first and last holes, slide on your gasket, manifold and install the...
  12. Lou C

    High oil pressure smell of gas in oil

    The other thing that can cause high oil pressure is water in the oil. If you’re not seeing it on the dipstick look inside the valve cover
  13. Lou C

    Engine rpm is not stable below 2000 rpm

    thanks for posting this up, I am a loyal Quadrajet fan but if something happens to this one there really aren't a lot of good cores left so being able to use the easily found 1409 is a nice option. I tried the Holley that OMC and Volvo used in place of the Q-Jet and it never ran right so I took...
  14. Lou C

    Impeller challenged...?

    try marineengine.com nlamarine http://www.marineengine.com/parts/omc-parts/omc-boat-parts.php?year=1988&hp=4.3&model=434APRGDP&manufacturer=OMC+stern+drive&section=Transom+Mount part # 95 probably can get it from ebay too just need part number
  15. Lou C

    Bow riders with best engine access?

    Agreed I have not seen one late model bowrider/I/O style boat that I'd buy, compared with my old boat that allows complete access once I pull out the rear seats. I had to re-configure it to my needs, with 2 seperate rear seats (a pair of 37" wide pontoon bench seats) and made the bulkhead behind...
  16. Lou C

    Kills at midrange throttle settings

    A '94 I'd think is the Weber 4bbl which is similar to the Edelbrock 1409. Merc used Quadrajets till about '89/90 then switched to the 4bbl Weber.
  17. Lou C

    2002 Volvo Penta 5.0 idles great then dies in gear

    Did you in inspect the anti siphon valve? I had this problem on my '88 FW H-200 years back. Replaced with a better quality one and no problems since.
  18. Lou C

    1993 Mercruiser 4.3 2bbl carb running out of power

    pine sol? never heard of that! Yep Berryman's but wear gloves/goggles etc. ESP when blowing out passages! And you need an air compressor, compressed air cans don't cut it. A little hot dog compresser will work. you can find tools made especially for cleaning out carb passages without damage on...
  19. Lou C

    Starting mercruiser 350 after boat almost sinks

    When I had water in a cyl & oil due to blown HGs back in Aug ‘16, what I did was run it, drain out water and change oil, repeat 4 times but made sure to drain water each time so it could not seep back into the motor oil. I didn’t take the engine apart till the winter ‘16-‘17 but because I fogged...
  20. Lou C

    1993 5.7 Mercruiser Low Power and Stumble at WOT

    actually after looking closely at the vids it looks like the Weber 4bbl not the quadrajet. however the same general princupals apply.
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