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  1. Scott Danforth

    Anti Seize or Not?

    Old guy wrench knowledge taught to me by old guy wrench 40 years ago. No one remembers Milk of Magnesia, however everyone remembers maalox
  2. Scott Danforth

    7.4 Mercruiser Engine Life Expectancy

    with proper maintenance, about another 4000-5000 hours, or at that rate you are going (29.2 hours per year) about 172 years (seriously, the norm is 50 hours per year). use your boat more. however parts may not be available in another 30 years, and truth is most boat motors are murdered from...
  3. Scott Danforth

    Cabin fabric

    sailrite is just one of many on-line retailers, along with reliatex, etc. the padding on the back is called laminated. if you are sewing yourself, you can glue laminate if you cant find the fabric you want pre-laminated. just wait about 2 days for the glue to cure so it doesnt gum up your...
  4. Scott Danforth

    Anti Seize or Not?

    as a side note, on a regular vehicle. Maalox or other tummy feel good stuff works great to coat exhaust bolts. the temp turns it into a powder, and 20 years later, they come out as if they were just installed.
  5. Scott Danforth

    Anti Seize or Not?

    yes. Permatex #3 is now called aviation it is also what Volvo Penta slaps between all their outdrive parts to keep them sealed and able to pull apart.
  6. Scott Danforth

    Mechanical Fuel Pump Arm Movement

    Properly set up, a 5.7 with that cam is about 330hp at flyweel, about 300 at prop
  7. Scott Danforth

    c4 duo prop question

    Yes
  8. Scott Danforth

    2002 MCM 5.0L with Thunderbolt V Ignition stalling at idle

    Check you lower shift cable adjustment. Has your distibutor trigger been upgraded to the new 3-wire versions Your boat probably sat for many years. It should have close to 1000 hours on it.
  9. Scott Danforth

    Starter Shims?? - 1996 5.7L

    Grade 8.8 metric is a soft bolt like a grad 2 imperial. should be grade 10.9 or higher
  10. Scott Danforth

    Yamaha l4 3.0l sterndrive replacement trim pump

    I would swap in an oildyne 108 for about $100
  11. Scott Danforth

    Towing tube with bayliner capri 1700 1992 70hp

    You are only towing at 20mph. You can do that with 40hp
  12. Scott Danforth

    Tuning Holley 80551 (4160)

    Your carb is too small for a 5.7 in a boat
  13. Scott Danforth

    c4 duo prop question

    C series is stainless, B series is aluminum. Post a pic of the drive, or google VP 280 vs VP 290
  14. Scott Danforth

    c4 duo prop question

    on the 2557 Montego, original engine was an AQ271C (275hp) with a DP290 and it came with B3's. you are over-prop'd with the C4's and someone swapped your drive from the 290 to the 280 (I have known a few Montego owners as well as a bunch of the guys at Carver in the late 80's) VP does not put...
  15. Scott Danforth

    c4 duo prop question

    first, welcome aboard what motor/drive combo? what model Carver? what RPM are you at? what is your weight? what speed are you at? Generally, you drop down in number to gain RPM (lower pitch) However the C-series props are stainless, so that is pricey to be trial and error. maybe get a set of...
  16. Scott Danforth

    Mechanical Fuel Pump Arm Movement

    sorry to hear about covid. your building from scratch and didnt go stroker?
  17. Scott Danforth

    Compression Question

    I would go with the gauge reading high. agree, it would be good.
  18. Scott Danforth

    Starter Shims?? - 1996 5.7L

    my guess is the new bolts are too long (PMGR usually needs shorter bolts) I would be inclined to add washers under the bolt heads. starter shims are generally not needed as manufacturing tolerances have gotten better, however to properly shim, you need access to both the ring gear and pinion...
  19. Scott Danforth

    Compression Question

    re-check cylinder 1. you may have water or oil in it, or your gauge is reading 30 psi high and the following 3 cylinders are a bit low. spec is 150 psi for cranking compression numbers. however since you mention your oil is hazy, I would change it.
  20. Scott Danforth

    Mechanical Fuel Pump Arm Movement

    the fuel pump cam lobe movement on a small block and big block hasn't changed since 1953 when the small block was being developed. its about .375-.395 total lift that is all it takes to pump fuel. Ford used to have only 0.200" of lift on the old flat-heads, not until after the y-block did...
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