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  1. Scott Danforth

    Question on cradle design principles

    each boat is different. the cradles I have built are simply plywood and 2x4's cut the plywood to fit the hull every few feet, strengthen with 2x4's I have also built a cradle on the trailer once. a few 2x4's across the trailer, pizza slice shapped plywood bits to go up to the hull. take...
  2. Scott Danforth

    Water Pump connections

    they are push-to-connect fittings and yes, the pump will hammer a bit at low flow as it is building pressure, and being turned off by the pressure switch, then loosing pressure because you have the sink running turn the faucet/tap on full and the pump just runs.
  3. Scott Danforth

    Towing a Chaparral 23 H2o Sport boat with a 4Runner that has a 5,000 pound tow rating

    dry weight is also without any fluids such as oil, fuel, etc, and options such as bimini top, etc. add all the other things up from post #3 and actually weighing the boat on a trailer and you will find you are much closer to #6k
  4. Scott Danforth

    Replace mount

    welcome aboard. I hope this old boat is aluminum and not fiberglass.
  5. Scott Danforth

    Everything done but low rpm at WOT. Distributor spring?

    IMO regulations are "international" doesnt mean that people follow rules. we also can argue VE all day long. that motor came with a larger carb from the factory that OMC determined was needed.
  6. Scott Danforth

    First Time Project

    I have friends that would live on the hook for up to 6 months. Generator, wind generator, 10 solar panels, spare wind generator, spare panels They could never get to where they didn't run the generator They did loose most of the solar panels, the wind generator and half the railings in a...
  7. Scott Danforth

    Can’t get on plane

    Inside the pickup tube in the tank between the gas and the anti-siphon valve
  8. Scott Danforth

    No Power to Boat

    Probably at the battery, or under the cowl
  9. Scott Danforth

    Only goes 20 MPH

    You have to remove the down elbows to get to the flappers to inspect. Not even a 300hp vacuum cleaner would help Your local dealer will have gaskets in stock
  10. Scott Danforth

    454 Piston problem

    Unless you spend money on a balance job, don't worry about the 12 gram difference. Stock motors were off as much as 29
  11. Scott Danforth

    454 Piston problem

    if you have the bore at the top, and know the ring gap at the top, you can then measure 3-4 points down to get taper I personally like to take the bore gauge and measure side to side, then rotate 90 and take same readings. that give me taper and eggality
  12. Scott Danforth

    1973 Starcraft SS 18 I/O

    check the head and the exhaust manifold. water got into cylinder #4 from either a bad head or a bad manifold
  13. Scott Danforth

    Any idea which drive this is?

    Clymer manuals make bad toilet paper and worse manuals. You will need the Volvo manual. https://www.volvopenta.com/en-us/service-and-support/your-engine/manuals-and-handbooks/ Being that old, you will have to call them (only manuals for after 2000 are on their website)
  14. Scott Danforth

    454 Piston problem

    The mark 4 pistons didn't change for GM much between 1968 and 1989. There are basically the lower CR dished used in the 70s and the flat tops. Measure the bore in 3 locations with a bore gauge
  15. Scott Danforth

    TRAILER WANTED

    where you located? down here in Florida, there have to be 20 boat trailer manufacturers within a 75 mile radius of Tampa, most will even custom make what you want.
  16. Scott Danforth

    TRAILER WANTED

    call trailer manufacturers. with the slowdown in the RV and recreational boat market, they will have inventory or shorter lead times.
  17. Scott Danforth

    Everything done but low rpm at WOT. Distributor spring?

    post #12 had the carb number Carb is 4bbl Holly 1850-5. Numbers on the horn are 1850-5 1692 its a 600 CFM Holley Street carb with brackets for the kick-down linkage
  18. Scott Danforth

    Part Identification

    I think AD figured out the picture.
  19. Scott Danforth

    No Power to Boat

    check with a volt meter. look to see where the voltage stops
  20. Scott Danforth

    7.4 flame arrestor to KN

    I am running a K&N on my boat for 3 reasons. reason #1, I bought a marine K&N assembly used for $30 off facetube market place from a wrecked boat with a carbed 502 reason #2, I sold the original Holley spark arrestor with a bunch of AQ271 parts reason #3, a new 4-barrel spark arrestor for my...
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