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  1. Scott Danforth

    '84 Lund 3.0L IO engine runs, locks up, runs, locks up

    No, you stated volvo with the thread title, the manual I sent is volvo. However you have an OMC. Completely different Dont confuse serial numbers with GM casting numbers
  2. Scott Danforth

    Normal WOT rpm's on 2010 4.3 mercruiser bayliner BR 195

    You should do your holeshot with the drive fully down Slam the throttle forward, as the boat climbs out od the hole, be trimming up Trim up until boat starts to porpoise, than tap down just a tad No trim gauge needed, and if you follow that process it accounts for wind, load, current, etc
  3. Scott Danforth

    New to winterizing..is it possible to fill cylinders with antifreeze?

    Yes
  4. Scott Danforth

    GPS Location APP

    Google would be my first selection (I dont do apps)
  5. Scott Danforth

    '84 Lund 3.0L IO engine runs, locks up, runs, locks up

    GM sold the longblocks to Mercruiser, OMC, Volvo, etc. However all the bits bolted on to turn a forklift motor to a boat motor are designed and manufactured by the marinizing OEM The 3.0 (181 cubic inch) is an industrial only version of the 153 cubic inch ( 2.5 liter) motor that debuted in...
  6. Scott Danforth

    Volvo AQ231A block Casting Number

    Any 350 block (and there are about 100 different casting numbers) can be made into a 377 or 383 Get a roller block (some From 1988 on, all from 1996 on) Your drive uses a drive plate, so any vintage of block will work - 1 piece RMS or 2 piece RMS. You are limited to a 153 tooth flywheel with...
  7. Scott Danforth

    Need help identifying weird oil plug

    5/16" bolt and some permatex #1. call it done
  8. Scott Danforth

    5.0GL - No Power at Coil

    check the MOB switch. the MOB switch is after the key switch, however before the 10-pin connector
  9. Scott Danforth

    3.0l replacement head

    you need a head from a 1990 or earlier 3.0, about $500 from your local GM dealer that sells industrial engines then you need the correct GM 181 cubic inch valve train parts from the same engine. guarantee they are not ford push rods. you should not have to machine anything if you have the...
  10. Scott Danforth

    '84 Lund 3.0L IO engine runs, locks up, runs, locks up

    No, a mercruiser engine and drive was originally bolted into your boat. that is the only other drive hole that the cobra could fit. By the looks of it, the prior owner found an earlier motor and bolted it to a later drive and installed in the boat. OMC drives for 1984 and 1985 were stringer...
  11. Scott Danforth

    Broken skeg, water re-appearing in bilge

    being a 1995 four winns, I would suspect a soft transom and the transom shield moved when you hit something
  12. Scott Danforth

    AQ271c overheating

    only other thing it could be is the PS cooler is plugged and you are not getting water flow. back flush from the raw water pump would cure that.
  13. Scott Danforth

    '84 Lund 3.0L IO engine runs, locks up, runs, locks up

    to put an OMG Cobra in a 1984 boat meant that the boat originally had a mercruiser in it
  14. Scott Danforth

    AQ271c overheating

    the cooling system is simple. if that fitting is good, the only other place it can suck air is the o-ring at the bottom of the H-frame. to replace that o-ring, the drive should come off so you can split the case however if you tried to run from a tote under the drive (as you posted in post...
  15. Scott Danforth

    What I/O Drive options were used in a 19' Islander

    the inline 6 weighs about 150# more than the V6. that is 4 cases of beer and 2 bags of ice
  16. Scott Danforth

    3.0l replacement head

    mercruiser bought the head from GM. they didnt make the head for the 3.0 however please help us help you there are 3 head designs. the really early 1974 and older. the 1975 to 1990 and the 1991 and later. you need to keep the 1990 and older head with the 1990 and older block you need to...
  17. Scott Danforth

    Gas Issues

    nothing wrong with removing the water from the tank done it many times however you are correct with #2
  18. Scott Danforth

    Gas Issues

    phase separation - water and alcohol separating from the petroleum
  19. Scott Danforth

    Air Don't Freeze Winterization

    I can stagger on beer
  20. Scott Danforth

    Gas Issues

    how old is your fuel? Stabil only works for adding a few extra months
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