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  1. Scott Danforth

    Motor question.

    big blocks have not been in a car since the 70's you can get a TRUCK motor, strip it down to short block and heads (pull it apart) and install marine head gaskets, brass core plugs. you will also need a marine circulating pump. then you can bolt on the marine accessory drive, rotating...
  2. Scott Danforth

    Fluid Changes for Winterizing, Do I Need to?

    when I used to live where I needed to winterize, I generally fired it long enough to get oil pressure and make sure no leaks. about 3-4 seconds was enough for the gauge to start registering pressure then proceed to drain, pull batteries, etc.
  3. Scott Danforth

    Antifreeze circulation through engine

    the manual (written by the experts) says drain the block and manifolds and hoses then if you desire (optional) to add AF, you pour it in the hoses thru the thermostat housing with a funnel the key is to fully drain
  4. Scott Danforth

    Motor question.

    1990 is a change year you could have a MK4 454 which is 1978-1990. or you could have a Gen V which is 1990-1995 because the coupler is different, there are additional things you need to look at. first you need to identify your motor stamped steel valve covers = MK4 aluminum valve covers =...
  5. Scott Danforth

    Finding the right starter for my 7.4 mercruiser

    some starters have the "I" or "R" terminal some starters dont if your starter has it and you dont need it, then dont use it (terminal). BTW, there are 4 types of GM marine starters direct drive for 153 tooth flywheels (straight pattern) direct drive for 168 tooth flywheels (staggered...
  6. Scott Danforth

    Fluid Changes for Winterizing, Do I Need to?

    if you did not use the boat at all (zero starts) then leave it. however if you started the motor even once...... then the acids start building up in the motor. these acids are a byproduct of combustion. the first thing they attack is the soft metal in the bearings an oil change is cheaper...
  7. Scott Danforth

    Steering

    push-pull cable (big, thick sheath about 3/4" in diameter)? or a pull-pull cable (drum at the wheel with 1/8" cable going down both sides of the boat over pulleys)?
  8. Scott Danforth

    Aq271c engine oil

    I agree with Rotella T4 15w40
  9. Scott Danforth

    Possibly Purchasing??

    being the boat is a 1989, I would definatly consider it a project boat. the price is a bit high, however Covid pushed the prices of all boats high the past year. I sold my 2002 SeaRay 190 for that $12.5k back in 2011 I would look the boat over with a fine tooth come. just looking at the...
  10. Scott Danforth

    5.0l vs 5.7l

    oooh......fireslotted..... a 95 350 will have about 30-35 more hp than a 1987 305. change to vortec heads on the 350 and you get about 30-40 more
  11. Scott Danforth

    Mercruiser outdrive gear ratios

    wasnt the 2.43:1 only behind the V6?
  12. Scott Danforth

    2007 Mercruiser 5.0 MPI, Crank No Start, Scan/Code Reader

    if you want to read your engine https://www.rinda.com/ however start with the basics compression? fuel pressure? spark?
  13. Scott Danforth

    Ford 302 issues

    Have you stsrted with the impeller? Also, check compression
  14. Scott Danforth

    88 Capri Restoration (Splashed 08/2022)

    they are all the same quality. however Morse like their red jackets
  15. Scott Danforth

    1998 Mercruiser 5.0 running problem - Camshaft???

    the fuel system is everything from the cap and vent to just below the carb. as stated, doubt its your cam shaft. you can pull the intake and look. then you are only out about a day and $100 for gaskets, etc. Im leaning toward improper fuel pressure........so measure the fuel pressure at the...
  16. Scott Danforth

    Steam Launch parts acquired

    Remember, a bad day on the water is better than a good day in the office.
  17. Scott Danforth

    4.3L OMC leaking water.

    how did you winterize the boat last year?
  18. Scott Danforth

    7.4 Mercruiser Distributor, Ignition, coil

    buy a PMGR starter and new battery cables
  19. Scott Danforth

    1998 Mercruiser 5.0 running problem - Camshaft???

    seriously doubt its a cam issue plus you can pull the intake and look also, if you suspect an internal issue to the motor, pull the motor, dont try to kill yourself working in the bilge remember, to get to the cam, you must drop the oil pan first, then you need to have a straight shot, 27"...
  20. Scott Danforth

    88 Capri Restoration (Splashed 08/2022)

    red are generally morse the part number is usually stamped every 12 inches on the jacket
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