How do you tell if your motor is to high? With the water pickups on the nose cone will the water pressure drop like it would if you didn't have them? I am needing more rpms but don't want to get my motor to high and hear the dreadful sound.
Thanks
David
David Hale
Grove, Okla.
2001 201D Cobra
2007 225 Pro XS
\"Death is certain and the end is always near\"
If you've got a Torquemaster Gearcase (that's what your engine came with).....
Watch your water pressure! You can continue raising the engine in 1/4" increments until ONE of the following occurs:
1. RPM INCREASE WITH A SPEED DECREASE
2. WATER PRESSURE DROPS BELOW 18-20 PSI.
If either happens... drop the engine back down 1/4" and that's your "max running height".
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Don, I am assuming that Mercury replaced it with what was orginal. Right now it is 3" below the pad, I am turning 5570 rpms and have 26 psi (smart craft). Thanks for the help.
David Hale
Grove, Okla.
2001 201D Cobra
2007 225 Pro XS
\"Death is certain and the end is always near\"
David:
You've DEFINITELY got room to move your engine up some.
Target your RPM's closer to the 5800-5900 RPM range... and try to keep your water pressure at 20 psi (this leaves a little bit of a safety margin for turns, or rough-water operation).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Raised the engine in 1/4 increments until I lost speed, dropped 1/4. Not sure what my measurment is, but I'm running a 25 water pressure. Running 58-59 hundred rpm. can you raise the engina and initally lose some speed but pick it back up at a higher motor setting but a lower pressure?
I can explain it to you but I can\'t understand it for you
Unlikely. Once you start to lose speed (and gain RPM's), you've probably exceeded your "best slip ratio".
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
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