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  1. Scott Danforth

    89 3.7 merc bow rider / barley idles

    Use a dwell meter. Gaping only gets you close, dwell meter gets you precise
  2. Scott Danforth

    VP 290 Duo prop Ratios

    is that 4400# the published weight, or did you actually weigh it? considering the motor and drive are a 1988, your hull could be water-logged. in your boat with the stock AQ271C (only paired with a DP290A with 1.95:1) and B5's you should be at about 44-46mph at 4800-5000 RPM. that is assuming...
  3. Scott Danforth

    Trouble pulling skier out of the hole

    WOT is Wide Open Throttle. that is the throttle control against the stops your boat with only two people on board should pop out of the water on plane almost instantly when you mash the throttle. pulling a skier, as indicated above, is just slightly less of an instant mashing of the controls...
  4. Scott Danforth

    Help! Identifying type of boat

    big red flag when the paperwork doesnt match the boat
  5. Scott Danforth

    VP 290 Duo prop Ratios

    lower gear housing. all the upper transmissions are the same across the board easier to swap housings if you are not set up to properly check shims, etc why do you say its wrong? what ratio do you have? what motor do you have? what prop set do you have? (b1 thru B8) and what boat do you...
  6. Scott Danforth

    Burned valve or worse 1997 5.7 LX

    that plug insulator is also heat cracked. so it got hot most likely running lean. once the head is off, have the head tested and take a good look at the piston. as Bondo pointed out.....bits of it will be missing. being a 12 bolt intake, that means you have a 1995 motor (vortec heads came...
  7. Scott Danforth

    Trouble replacing thermostat

    welcome aboard. have you replaced the raw water impeller?
  8. Scott Danforth

    Ram cylinders

    a rebuild kit is $75 new cylinders are about $1200 each if you pay a dealer, add 5 hours at $150/hr if you removed the cylinders, buy the rebuild kit, go to your local hydraulic repair shop, they may charge you $100 to rebuild
  9. Scott Danforth

    Help with water temp

    Check with IR Most likely its the t-stat
  10. Scott Danforth

    E3 sparkplugs OMC 3.0 Cobra (chev)

    Didnt know that they made marine E3s
  11. Scott Danforth

    Volvo 290DP Trim will go down not up

    Remember, to go above 8 degrees ( trim range) and get into the tilt range. You have to pull the finger switch and thumb switch That relay is at the back of the gauge
  12. Scott Danforth

    89 3.7 merc bow rider / barley idles

    Service the points Service the fuel system
  13. Scott Danforth

    Ram cylinders

    Which vintage? Just get a seal kit and reseal Google 5 star marine
  14. Scott Danforth

    4.3 thermostat

    Get new manifolds
  15. Scott Danforth

    Where to Buy

    Valve cover gasket is same for the 2.5. Get a felpro rubber gasket for a 1962 chevrolet 153
  16. Scott Danforth

    Propeller

    You need to check your gauge or you have oil in each cylinder A new motor will have 150 psi. To get 175 psi, you would need to have a compreasion ratio of 12.5:1 (that is drag motor territory, boat motors are 9.4:1 or less)
  17. Scott Danforth

    350 mag 5.7l skipping

    Start with your fuel pressure, at idle, and under load Did you inspect the contents of the fuel filters?
  18. Scott Danforth

    Propeller

    First, welcome aboard A 19p would actually be fine if not underprop'd with a healthy motor? Start with a compression test
  19. Scott Danforth

    PCM no spark! HELP

    Did you plug in Rinda? Did you check the easy things like the MOB switch?
  20. Scott Danforth

    350 mag 5.7l skipping

    Most likely fuel system related
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