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  1. Scott Danforth

    Bent push rods….calling engine builders

    GM says 20ft-lb
  2. Scott Danforth

    1996 Four Winns 5.8 Duo drive Fuel pump location

    Check idle with throttle cable disconnected
  3. Scott Danforth

    Bent push rods….calling engine builders

    yes, all 1996 and later SBC motors have roller lifters. The other change GM made with the Vortec heads is non-adjustable self-aligning rockers mounted to pressed in studs Unless you are running aftermarket adjustable valve train, you have non adjustable rockers. You should have a step in the...
  4. Scott Danforth

    Bent push rods….calling engine builders

    are you sure you have adjustable valve train? GM went to non-adjustable with the vortec heads. so if you have stock heads, you tighten down each rocker retainer to 20 ft-lb
  5. Scott Danforth

    5.8l efi idles too fast

    he hasnt been back for 9 months
  6. Scott Danforth

    Strange boat disease strikes.

    dont you members of the Starmada rebuild them every few years......
  7. Scott Danforth

    Boat Horn Confusion

    check your grounds at the ground buss
  8. Scott Danforth

    2007 Volvo Penta 5.0 GXI Fuel Pump issue

    low pressure pump draws from tank to fuel cell. high pressure pump pushes from fuel cell to motor. the pump either runs or it doesnt. the pumps are airtex/carter units in a fuel cooler made by a heat-exchanger company.
  9. Scott Danforth

    Strange boat disease strikes.

    y'all need to understand a boat is designed to last 15 years and be replaced. https://forums.iboats.com/threads/perspective-of-fiberglass-boat-design-life.683703/
  10. Scott Danforth

    Mercruiser 3.0 1988

    manuals are copywrite protected you can buy used on ebay. https://www.ebay.com/sch/i.html?_nkw=mercruiser+manual+10 I believe its manual 10.
  11. Scott Danforth

    What Brand of Brake pads are best quality? What do you guys use for quality?

    FYI Magneti Marelli is a Tier 1 OEM parts supplier that supplies almost all automotive brands with parts. they even supply mercruiser with fuel injectors and other bits. most Tier 1 suppliers you never heard of, however you probably have had their parts on your vehicles.
  12. Scott Danforth

    closed cooling

    if the heat exchanger is properly designed, it can work with the lower flow of the Alpha raw water pump. going full system, the heat exchanger will be at least 5" in diameter with a core at least 21" long for a low output 5.7 liter a full system has twice the BTU capacity as a half system are...
  13. Scott Danforth

    1998 Mercruiser 5.7 TBI Backfiring Under Load & Loss of Power

    impellers are NOT self priming. so when you fire up the boat, the whole outdrive must be under water to have the raw water pump flooded. this is why you must use a hose and muffs with enough water pressure and flow to operate the motor when on a trailer. 4000 RPM is way too low. the knocking...
  14. Scott Danforth

    1996 Four Winns 5.8 Duo drive Fuel pump location

    You need a marine intake for corrosion issues, even in fresh water You need a marine carb and marine distributor so you don't blow up and meet Jesus We will agree to disagree on carb size for a boat. And you can't use any of the carbs from your pile of carbs as none of them are marine
  15. Scott Danforth

    Shot in the Dark Depth Transducer Compatibility

    fish finders use different transducers than the depth gauge.
  16. Scott Danforth

    Mercruiser 3.0 1988

    since your motor is older than 15 years old, you may have to call your local merc dealer for the manual. the website only goes back a few years
  17. Scott Danforth

    1996 Four Winns 5.8 Duo drive Fuel pump location

    have you check your IAC to see if its stuck. that will cause the motor to not idle correctly if you are going to carb...... you have to run a marine intake with brass water passages. not a standard aluminum intake unless your motor is heat exchanged cooled. Carter universal marine fuel...
  18. Scott Danforth

    Volvo Penta F4 vs F5

    what do you have on the boat now? what boat, what size, what weight, what motor, what drive ratio volvo does not list pitches on their duo-prop drives, they list series with a number. the lower the number, the lower the pitch. the higher the number the higher the pitch. so stick with the...
  19. Scott Danforth

    Chasing Down Fuel Delivery Issue

    the yellow tint and the crud are both concerning the crud may have been pumped in when you filled up.
  20. Scott Danforth

    71 silverline comoro

    Pull the drive and use a hose
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