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  1. Scott Danforth

    Mating Engine to Mercrusier problem

    Any 1986 and later GM SBC manual transmission 153 tooth flywheel ( for 10" clutch) the should be about $70 for cast iron and $150ish for SFI rated billet steel
  2. Scott Danforth

    Scout 153 leaking aerator problem

    measure what you have. you either have 3/4" or 1-1/8" and no, fix any other issue.
  3. Scott Danforth

    Drain tubes

    drain tubes are expanded in place you need a drain tube or water will rot your transom like 'kogs indicated
  4. Scott Danforth

    Mating Engine to Mercrusier problem

    NO, the drives are very similar. however the engine on the other hand went thru 3 major design changes and a bunch of minor changes your boat being a 1981 may have a 1980 block first design change was block changed in 1980 for the 1981 model year. this flopped the dip stick and there were...
  5. Scott Danforth

    1984 470 initial carb set up to get idle

    so this thread was started after your thread on a motor missing on 1 cylinder?
  6. Scott Danforth

    wont shift out of reverse mystery issue

    no. its the shift interrupt switch back at the motor where the two cables come together just like Bondo stated. the neutral starting switch is in the hand controls. never jumper safety switches. if you havent replaced your lower shift cable, start with replacing that, and then adjust it like...
  7. Scott Danforth

    Scout 153 leaking aerator problem

    no. you need to replace the thru-hull fittings and not attempt to cap them. the fittings themselves are cracked and need replacing if you put a rubber drain plug in the cracked plastic, the plastic will fail and you will most likely sink the boat you need to replace them. Plastic fittings...
  8. Scott Danforth

    350 mercruiser block

    first, need to identify the year. you want a replacement block from the same vintage. things like crank mounting, head accessory holes, intake, etc all depend on specific vintage of motor and casting numbers. so when you say "standard 350" remember, there is nothing "standard" when you...
  9. Scott Danforth

    Taking on water

    first, welcome aboard second, Volvo Penta has been building drives for decades. would help if we knew what vintage drive and boat third, most likely you have an older boat with a rotten transom and banging into the sand simply squashed the rotten wood in the transom. or your boat is well...
  10. Scott Danforth

    470 4 barrel conversion, one cylinder missing

    the only difference is the manifold and carb. so yes, you can slap a 4 bbl on a 470 and get a 485. nothing special about a marine motor except the core plugs are brass or stainless, the head gasket has a stainless core and the cam has very little overlap due to the wet exhaust. if you want to...
  11. Scott Danforth

    470 4 barrel conversion, one cylinder missing

    You and your local "guru" are wrong
  12. Scott Danforth

    Can someone PLEASE tell me which bellows are which? taking on some water...

    how do you know the transom is solid? there is only one way to know and that involves test drilling from the inside of the bilge.
  13. Scott Danforth

    470 4 barrel conversion, one cylinder missing

    missing on many cylinders can be poor fuel quality or improperly maintained points.
  14. Scott Danforth

    Back up camera on trailer

    get something like this, put it on a magnet or suction cup mount. use it when you need it. https://www.ebay.com/itm/384061651244
  15. Scott Danforth

    What’s it worth

    cool looking boat ran great when last used is a red flag. this could be it was last used tuesday of this week, or last used in 1985 interior needs restoration is a red flag, sirens and lights. why does it need restoration. is it because the vinyl is just cracked from age, foam is still...
  16. Scott Danforth

    470 4 barrel conversion, one cylinder missing

    here are the culprits for a carbureted engine missing on one cylinder bad spark plug - agree with above, get new bad spark plug wire - get new improperly installed spark plug wire - properly install bad distributor cap - either bad contacts or carbon tracing. replace cap, dont try to clean it...
  17. Scott Danforth

    Can someone PLEASE tell me which bellows are which? taking on some water...

    never fill the boat up with water. to get high enough for most leaks you literally need to add 2-3 tons of water. this damages the trailer and damages the boat. plus water gets into areas it never would normally, then just promotes rot bilge water is always greasy and dirty because people do...
  18. Scott Danforth

    How to replace a VP 250

    hey @kenny nunez , will a 290SP lower fit the drive above? @jsgif99 if Kenny comes back with yes to the answer, may have a solution for you
  19. Scott Danforth

    Outboard repaint - need suggestions on materials

    all 2-part paints are poisonous, many solvent based (1-part) are too. hence the reason you need proper PPE to spray paint. rattle cans are junk. you need a 2-part paint on a boat motor. many of us use rustoleum with a hardener see link 14...
  20. Scott Danforth

    3.7LX Mercruiser 6916779 manual

    buy the factory manual. adobe flash is required on boat info. boat info can not allow you to download as that is copyright violation. however for security reasons, adobe flash has been discontinued (although I still have it on 3 computers) the only non copyright violation is to buy the...
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