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  1. Scott Danforth

    Engine won’t turn over

    first, pull the drive second, pull the spark plugs if it doesnt turn over, pull the motor and put it on an engine stand and find out what is stuck.
  2. Scott Danforth

    Rebuilding or replacing Mercruiser 4.3 in 1996 caravelle 1950SE

    or the exhaust flappers failed and you took water up the exhaust, which then went into the cylinders or the exhaust manifolds failed and you took water in the exhaust ports and went into the cylinders leading cause of cracked block is improper winterization. usually the manifolds are cracked...
  3. Scott Danforth

    Duoprop F7 is too big by 400+rpms

    you are most likely loosing a ground or you are loosing the grey wire at the tach. start troubleshooting.
  4. Scott Danforth

    How to Clean up 1976 Ozark Bass Boat

    or if you are lazy, you can get 10# of oxalic acid on amazon for $27 (used to be about $15) https://www.amazon.com/OXALIC-Crystals-Cleaning-Removal-Remover/dp/B0147IFKBY still need to sand out the oxidation prior to buffing. for buffing, I recommend the variable speed harbor freight buffer...
  5. Scott Danforth

    Rebuilding or replacing Mercruiser 4.3 in 1996 caravelle 1950SE

    GM motors will strip the crank threads trying to turn them over by the bolt. Then you throw the crank away Use a crank socket If a mechanic turns a motor over by the crank bolt, go elsewhere and get a different (real) mechanic
  6. Scott Danforth

    Vortec 906 & 062 valve stem o.d. ?

    Let your machine shop figure out the rest
  7. Scott Danforth

    Rebuilding or replacing Mercruiser 4.3 in 1996 caravelle 1950SE

    5.0 is heavier than a 5.7. By about 20# Both are about 150# heavier than a 4.3 Dont assume anything until you do troubleshooting And DO NOT turn a motor over by the crank bolt You either have room for a SBC V8, or you do not. 5.0, 5.7, 6.2 and 7.0 SBCs are all exact same dimensions...
  8. Scott Danforth

    Rebuilding or replacing Mercruiser 4.3 in 1996 caravelle 1950SE

    I would do a 5.7 or 6.2 vs a 5.0. Same amount of work, however the 5.7 and 6.2. The 5.0 doesnt buy much over the 4.3
  9. Scott Danforth

    How to Clean up 1976 Ozark Bass Boat

    1 - not going to happen without elbow grease and most likely paint, at least not easy, that finish is oxidized badly. you could wet-sand, then buff 2 - if you get the 45 year old decal off, the gel under the decal will be a different color than the rest of the boat simply from fading over 45...
  10. Scott Danforth

    Rebuilding or replacing Mercruiser 4.3 in 1996 caravelle 1950SE

    Hey @Lou C being a 1996, the bat wings are long gone @Scottish_joe still need to know what is wrong with the motor before you go any further
  11. Scott Danforth

    Rebuilding or replacing Mercruiser 4.3 in 1996 caravelle 1950SE

    first, welcome aboard second. find what is wrong prior to doing anything. as in serious troubleshooting first. you may just need new plugs or fuel in the tank third, if you need to rebuild - talk to your local machine shop FIRST. the guys that do nothing but build engines. to swap to a...
  12. Scott Danforth

    Scotch Guard on Sunbrella

    I used laundry detergent and a scrub brush to remove stains from my sunbrella material. if its small enough, just toss in the washer. then use the waterproofing and fabric guard to re-water-proof, etc.
  13. Scott Danforth

    Just 3 Words

    What he said we dont spoon-feed go and vote
  14. Scott Danforth

    Vortec 906 & 062 valve stem o.d. ?

    same as the heads you have, however with GM's screw in studs and a slightly bigger chamber 66cc vs 64cc you still need to knock the casting flash out of the combustion bowl. talk to your local machine shop, bet he has a pair of vortec heads all modded up sitting on the shelf collecting dust...
  15. Scott Danforth

    Wisconsin title.

    pick up phone, call the local Ohio DNR. talk to the folks on the end of the line. get answers, go from there.
  16. Scott Danforth

    Tracker Party Crusier

    exhaust hose is a mercruiser part, then again, everything from the controls to the motor/drive/prop is a mercruiser part why are you quoting yourself?
  17. Scott Danforth

    Just 3 Words

    stop being lazy here you go https://forums.iboats.com/threads/2020-splash-of-the-year-voting-poll.741002/
  18. Scott Danforth

    Just 3 Words

    y'all are bored so do this need to vote on SOTY poll in resto forum
  19. Scott Danforth

    Vortec 906 & 062 valve stem o.d. ?

    No i dont recommend flat tops. Just saying flat tops will give you 9.4:1 with a. 3.5" stroke. I recommend propper d-shaped pistons. I believe 7cc dish is what you are looking at with 3.75" stroke, however look at the calculations I also recommend talking to your machine shop before buying...
  20. Scott Danforth

    Mako 28.4 fuel tank

    my guess is your vent or fill line has a leak, and its not the tank itself. can you get to the hose couplings thru the inspection hatch?
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