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  1. Scott Danforth

    5.0l exhaust manifold Mercruiser interchangeability

    But new manifolds and starter
  2. Scott Danforth

    Fold ladder replacement

    Got a pic? You may need to look for the same vintage ladder to use the same mounting screws I spent a month looking for an old Garelick 3 step version of the 2-step that was on my boat.
  3. Scott Danforth

    5.0l exhaust manifold Mercruiser interchangeability

    So you wany to buy a broken freeze busted block for the most likely broken feeze busted manifolds? Your 1986 motor is an early 1-piece RMS block with flat tappet cam and the 2000 motor is a roller motor with vortec heads. What are you trying to do?
  4. Scott Danforth

    Reverse Rack and Pinon Helm direction?

    BTDT..... with a new splash..... makes it hard to come back to the dock.....
  5. Scott Danforth

    3.7lx merccruiser starter issues.

    clean all connections to bare metal, shine it up with 150 grit so its shiny and clean enough your mother-in-law will eat off them. then once they are tight, seal with marine electrical varnish. 3000 CCA means nothing if its crossing a bad connection.
  6. Scott Danforth

    Couple of questions

    its hardly ever a bad gasket if the leaking air is coming out the exhaust, you have rusty valves or valve seats. this would indicate a breach in the manifolds leading to water running in the cylinder and causing rusty valves if the leaking air is coming out the breathers, you have leaking...
  7. Scott Danforth

    Couple of questions

    do a compression test - all cylinders should be between 135 psi and 150 psi then do a leak down test (to determine where the compression is being lost) water in the oil could be leaking manifolds and water running down the cylinders which would also have low compression from rusty valves and...
  8. Scott Danforth

    Omc 5.7 smells like gas in oil

    first, is there fuel in the clear tygon hose coming from the fuel pump - yes or no? If yes, you need a new fuel pump if no, is there fuel pooling in the bottom of the intake from the welsh plugs? yes or no? if no, then change oil and monitor. if it happens again, it could be fuel pump...
  9. Scott Danforth

    aq270

    yes. go to the volvo section and look at the DIY stickies
  10. Scott Danforth

    Carb or worse?

    if this is a salt water boat, could be manifold is rusted thru. to rebuild a 3.0 costs more than $1500 unless you own the machine shop.
  11. Scott Danforth

    5.7 1987 OMC shuts off at Low RPM

    could be part of the problem, however it wouldnt be the main cause
  12. Scott Danforth

    Through Hull Exhaust too loud?

    Or turn down tail pipes that are under water until you are up on plane Or captains call
  13. Scott Danforth

    aq270

    pulling the drive (or at least pulling the transmission off the drive (see the stickies) is a once-a year maintenance issue. while you are inspecting the U-joints, you may want to also replace the bellows and check the PDS bearings
  14. Scott Danforth

    Temporarily repair toon logs.

    Hire a mobile welder to weld up the leaks and stop the toon log order. while at it, have the welder take care of the cracks starting at your M brackets as well.
  15. Scott Danforth

    aq270

    Welcome aboard its not good for it. pull the drive and check the u-joints
  16. Scott Danforth

    Mercruiser 4.3 Delco Distributor Question

    basically
  17. Scott Danforth

    Volvo Penta Backfires underload

    the backfire under load is a lean sneeze or your timing is way out of wack. your fuel pressure is low
  18. Scott Danforth

    Mercruiser 4.3 Delco Distributor Question

    Spark supression. primarily non-vented or a screen over the vent.
  19. Scott Danforth

    Shift cable causing stalling?

    both your shifters should go forward for forward. someone did not rig the controls properly
  20. Scott Danforth

    Good compression tester’s?

    I have an old lisle that I use, bought it almost 40 years ago. Been dropped a few times, now reads about 15 psi low when I checked last month. Going to just replace the gauge
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