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  1. Scott Danforth

    Mercruiser 3.7 (470) wont turn all the way

    buy this one, not chinese junk https://www.iboats.com/shop/sierra-fuel-pump-mc-3-7l-gm2-5l-3-0l-18-7282.html?gclid=Cj0KCQiAip-PBhDVARIsAPP2xc0739Wr2wykqkh5Go1xWQoHrselnl5xV3zFauT_3IquwOGncoYuWd8aAiIBEALw_wcB
  2. Scott Danforth

    2007 searay 240 sundeck with a 5.0L Mercruiser

    not really, you have to remove the seats to get access to the engine mounts and the fuel system anyway to pull the motor. I was there when they swapped the motor on my bud's 240 sundeck when his 6.2 needed replacing because his dry-joint manifold failed on the starboard side while they have...
  3. Scott Danforth

    Cummins mercruiser 1.7l 120hp parts and help

    first, welcome aboard second, you need to contact Mercruiser or Cummins Mercruiser diesel for parts third, these engines did not come in any vehicle. they are a specific built marine motor. they do share many internal engine parts with the Isuzu industrial line, however the turbo, fuel...
  4. Scott Danforth

    Purpose of spacer on Mercruiser 140, front engine mount,

    (sɹǝdɯɐƆ ʎddɐH ʎɹǝΛ) s,ƆHΛ llɐ ǝɹɐ ǝʍ ʎɐp ǝɥʇ ɟo puǝ ǝɥʇ ʇɐ os '∀ԀI ɐ puɐ 'HℲq ɐ ǝʌɐɥ noʎ ɟᴉ sǝɯᴉʇǝɯos sdlǝɥ ʇᴉ ˙ǝsn plnoɔ (ɔᴉuɐɥɔǝW pǝʞɔǝN pǝɹ) WNɹ ɐ ʇɐɥʇ ǝsoɥʇ ɟo ǝuo ƃuᴉǝq ┴WƎ ǝsn ʇɐɥʇ ǝsoɥʇ puɐ 0ㄣƖ WƆW ǝɥʇ ɟo WƎℲ ǝɥʇ ƃuᴉqᴉɹɔsǝp ǝlᴉɥʍ ǝsn uɐɔ ǝʍ ʇɐɥʇ s,∀˥┴ ʎuɐɯ ǝɹɐ ǝɹǝɥʇ 'MIMℲ os ˙sɹǝɥʇo...
  5. Scott Danforth

    Vapor lock

    doubt you have vapor lock. the fuel pump on the MPI engine is not concerned about fuel pump temps and will push fuel thru regardless. check your fuel pressure.
  6. Scott Danforth

    1986 lowe 160 16ft -motor weight problems

    there is no difference between the 48hp motor currently there and a 50 hp without knowing which boat you have, you may already be at the limit. many of the Lowe boats are rated at only 30 and 35hp. http://boatspecs.iboats.com/Lowe_Boats/bp/20br2000
  7. Scott Danforth

    Mercruiser 3.7 (470) wont turn all the way

    the original pumps were Carter pumps
  8. Scott Danforth

    1986 lowe 160 16ft -motor weight problems

    welcome aboard. If your motor was toast, I would stick with a 2-stroke myself. However if the motor is healthy, I would save my money and simply use the boat to go fishing.
  9. Scott Danforth

    Mercruiser 3.7 (470) wont turn all the way

    if you can get a rebuild kit with checks and diaphragm, that is all you need. however those have been NLA for a while
  10. Scott Danforth

    2007 searay 240 sundeck with a 5.0L Mercruiser

    how long are your arms? If you have orangutan arms, lay a pillow over the engine, lay on top the engine and reach down under the motor to remove it, about 30 minutes with human arms aft seating has to come out. this is a 2 person job and takes about 30 minutes then 1 person can work and R&R...
  11. Scott Danforth

    Mercruiser 3.7 (470) wont turn all the way

    A good motor is 140-150 psi A worn motor is 125 psi A motor with 100 psi may run, but it wont develop power
  12. Scott Danforth

    Your Worst Nightmare.-

    Before PB Blaster and Kroil, grey beard mechanics mic 50% acetone and 50% ATF (automatic transmission fluid). The best penetrating oil that exists
  13. Scott Danforth

    2008 Q4 Tahoe 18 ft merc outboard 115

    Look at the old cables, part numbers stamped on them every foot or so
  14. Scott Danforth

    302 ring gear replacement

    What ^ he said. I usually also tack weld the ring gear
  15. Scott Danforth

    mercruiser 140 low compression & cracked exhaust manifold

    buy a new motor. suggest buying a 1992 or later 3.0 with an Alpha 1 Gen 2 drive and replace the whole long tail. that way you get a much better motor and a much better drive than what you have for very little money. your motor needs a full rebuild. the cost just to rebuild your motor is more...
  16. Scott Danforth

    Your Worst Nightmare.-

    the owner come in and catches me drinking his beer....... seriously, if it was a common motor, i would not deal with an extremely seized salted powerhead, I would buy a fresh water motor however if it was rare, and i mean rare. and someone came to me to fix. I would use heat (a good tip) , a...
  17. Scott Danforth

    2004 Volvo Penta 3.0 manifold and riser replacement

    you need to investigate IF you have a problem before you throw money at it.
  18. Scott Danforth

    88 mercruiser 4.3 low compression and water in oil.

    a 4.3 in a boat and a 4.3 from a truck are the same short block and heads how the motor is upfit is what makes the difference. you can pull a 4.3 from an S-10 or silverado, however, you have to pull the motor apart, install marine head gaskets and brass core plugs. you then need to use a...
  19. Scott Danforth

    HULL REPAIR QUESTION

    love old farm pickups..... my 1948 was used to herd cattle
  20. Scott Danforth

    Parts For 1989 Cummins diesel V903 engines

    the V903 marine motor was long in the tooth in the early 80's being replaced with the N14 and other motors. many of the old marine parts are hard to get. there are aftermarket people to get heat exchanger cores like Sen-dure, etc. the housings may be an issue. the marine manifolds may be...
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