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  1. Scott Danforth

    Fuel system problem on 13 yo storage boat

    The anti-siphon valve is the fitting at the fuel pickup tube the fuel line is connected to Did you pull the sender to inspect the inside of the tank?
  2. Scott Danforth

    I'm stumped, overheated 4.3 MPI, water in oil, replaced heads, still water in the oil

    Mercruiser uses the same gasket suppliers as GM and other OEMs Check the block for a crack. Lifter valley, just under the deck
  3. Scott Danforth

    mercury 9.8 hp .... water flows through but will not pee?

    Did you replace the grommet at the power head to copper tube joint? Are you in a deep enough garbage can?
  4. Scott Danforth

    1994 Regal Commodore 400 How to replace fresh water tank

    Call Regal and talk to customer service You may have to remove other bits of the boat
  5. Scott Danforth

    Fuel system problem on 13 yo storage boat

    Clean the anti-siphon valve Check the fuel pickup filter Test fuel pressure with a pressure gauge (get the Mercruiser test fitting) After 2 years any fuel turned to goo After 13 years the goo would have dried to crusty bits You added fresh fuel which now has those crusty bits plugging your...
  6. Scott Danforth

    Copper crush washers ok to use?

    The black ones may be acetal (delrin). Those would work if they are acetal
  7. Scott Danforth

    Copper crush washers ok to use?

    Depends on the fiber base. Paper or fiberglass?
  8. Scott Danforth

    Copper crush washers ok to use?

    The plastic washers at Ace are nylon. Nylon is hygroscopic (absorbs water) Not sure the johnyrude crush washers are nylon (I don't know what they are made of)
  9. Scott Danforth

    96 21 Concept

    Your local canvas and upholstery shop can also pattern your boat and make a snap-in carpet
  10. Scott Danforth

    Copper crush washers ok to use?

    Even in fresh water galvanic corrosion will be an issue Use the plastic crush washers
  11. Scott Danforth

    Copper crush washers ok to use?

    Copper and aluminum do not like each other from a galvanic corrosion point of view
  12. Scott Danforth

    Replacement distributor 153ci mercruiser

    You are looking for a marine distributor than meets SAE J1171 that has an integral coil? There is only one company and that is DUI. No one else wanted to pay the royalties for the patent.
  13. Scott Danforth

    In-boat camshaft replacement - 7.4 Mercruiser

    Without degreeing the cam and working backwards for a cam card, almost impossible to identify
  14. Scott Danforth

    What engine in new boat

    my VP AQ275 came with a 715CFM holley 4150 VP put 600 CFM on the 4.3 and 500 CFM Holley 2300's on the 3.0
  15. Scott Danforth

    1975 Pontoon with OMC120 stringer, replace with Mercruiser 3.0 Alpha one?

    No, not even close the stringer mount is 4 points. the forward mount with or without electric trim and the aft trunion mounts the transom on an OMC needs to only be thick enough to hold the screws for the boot. the mercruiser mounts off the transom. the transom shield clamps to a transom...
  16. Scott Danforth

    Owners Manual

    until the last decade or two, boat manuals were only offered by less than a dozen boat manufacturers. Brunswick, Chaparral and a few more. boat manuals 40 years ago were non-existent.
  17. Scott Danforth

    In-boat camshaft replacement - 7.4 Mercruiser

    should, however you would have to look into the proper push-rod length. I have never kept non-adjustable rockers on anything.
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