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  1. Scott06

    Frozen Prop on SX-M Duoprop, Seeking Advice

    I think any grease… woulda been better than what he had
  2. Scott06

    Setting the timing

    Some one added a delco est kit to it , common upgrade that was also used by merc and volvo penta over the years. Chris has steered you right on how to set it make sure you can measure the total advance with an advance timing light or put a timing tape on the balancer
  3. Scott06

    Intake choice

    Get something like this to cover the hole https://www.jegs.com/i/Holley/510/301-20/10002/-1 divorced choke block off plate, not 100% sure the link is the one you need but you get the idea.
  4. Scott06

    4.3 Chevy

    Truck engine 96 and newer with vortec heads matching your existing boat engine. Truck cam is close enough to marine to keep, if car engine swap in marine cam. Strip it to long block swap over marine oil pan, put in new marine head gaskets , and put in brass or stainless core plugs. Swap over...
  5. Scott06

    U-joint bellows ring

    110 lb ft is in the factory manual
  6. Scott06

    U-joint bellows ring

    No adhesive on that end right?
  7. Scott06

    Mercruiser 3.0 Fuel Issues

    Post a picture, but i think That would only affect it if the accelerator pump was hung up and not letting throttle return .
  8. Scott06

    U-joint bellows ring

    I hear using merc power tune or similar carb cleaner as a lubricant and it pushes in by hand… i dont think glue goes on that end . @Bondo can you confirm ?
  9. Scott06

    Compression ratio 5.7l

    its all the combination if parts cam, heads, intake, carb working together and correct for the application. Typical marine application is more akin to a truck, rv, trailer pulling application where torque is king. A boat is under constant load like these applications. typical street performance...
  10. Scott06

    Compression ratio 5.7l

    Im just saying you want basically a stock replacement head vs soemthing with port design made for automotive performance applications which tend to focus on higher rpm than a marine low rpm torque application. i would talk with what ever vendor you chose first about the application .
  11. Scott06

    Compression ratio 5.7l

    Probably this head https://www.summitracing.com/parts/sum-151124 not sure if the runners are modified or stock shape and volume. Reading the text would be concerned if they are made for marine rpm or typical hot rod rpm with gearing …
  12. Scott06

    Compression ratio 5.7l

    If they are 96 and up vortec heads yes you can pick up 35 or so hp, but will need a vortec intake as well. What do you mean by 3/8 exhaust valves ? As you mention exhaust valves are 1.50” …
  13. Scott06

    Mercruiser 3.0 Fuel Issues

    Set the choke a tad leaner https://www.carburetor-blog.com/knowledge-base/mercarb-choke/
  14. Scott06

    Mercruiser 3.0 Fuel Issues

    Its really three separate tune up functions get factory manual set choke per factory manual make sure choke doesn’t hang up and fully opens may be too closed and making it too rich thus black smoke soot on transom. set idle mix screw, idle speed screw, timing per factory manual. If idle mix...
  15. Scott06

    Compression ratio 5.7l

    If its in a 1996 boat it is possible it is a 95 engine. My 91 sea ray had a 1990 vintage engine and by serial number one of the last alfa gen ones built , 91 was transition year to gen 2. Really depends on boat builders inventory of engines. my 2004 boat had an original engine showing a june...
  16. Scott06

    Mercruiser 3.0 Fuel Issues

    Probably choke idle mix or compression….
  17. Scott06

    DP 1.95 SM outdrive hosed

    Your best bet here is to talk to your insurance company. Good friend of ours- same thing happened last year shortly after spring splash. Mechanic found fishing line damaged seal insurance paid for new or reman of drive. Entirely possible prop shaft(s) bent, two sets of seals and shaft down...
  18. Scott06

    Gelcoat cracks around mercruiser transom plate opinions and repair questions.

    Might be why the sealant was put there to keep it from shipping more. As long as transom is truly solid you 'll be ok. Looks like in this photo there are two layers of yellow? either re gelcoated or painted?
  19. Scott06

    More testing on Sharrow prop...

    I'm not missing anything...don't be condescending. Yes it doesn't pay off in most situations (if you go way offshore a burn several hundred gallons a weekend it may pay off), completely agree. Would love to see real use feedback from someone vs article written in a mag supported by a company...
  20. Scott06

    More testing on Sharrow prop...

    Im also a big fan of aluminum for buy in price and understand why u may use it, but Dont compare Al to stainless let alone higher end stainless, not an accurate comparison. agreed the buy in is 2 x lab finished props would like to see a real world test aka no advertising dollars at stake …
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