JDMC807
Recruit
- Joined
- Jan 13, 2012
- Messages
- 3
I thought I had my micro good to go but got a problem and need some experienced advice.
Im having a problem with blow out at about 1/3 to 1/2 throttle. Set up is 14'5 stumpknocker with 25 merc, Vance jackplate 5" setback, and aluminum solas 4 blade 12 pitch.
First I thought it was weight..I weigh about 280 and moved to the front to level it out...No good.
I started with the jackplate all the way down and motor pinned at the lowest setting and tested it at different settings with no improvement.
Im thinking motor is too high..Cavitation plate is about 2-3" above hull but originally I figured the setback would fix that...Then I read about prop blow out and blow out rings.I checked the prop and there is a small amount of exhaust that blows out behind it. I put my hand slightly over the prop/exhaust hub to simulate back pressure and a good amount of exhaust blows out from behind the prop.... I am absolutely baffled any input is greatly appreciated...Thanks.
Im having a problem with blow out at about 1/3 to 1/2 throttle. Set up is 14'5 stumpknocker with 25 merc, Vance jackplate 5" setback, and aluminum solas 4 blade 12 pitch.
First I thought it was weight..I weigh about 280 and moved to the front to level it out...No good.
I started with the jackplate all the way down and motor pinned at the lowest setting and tested it at different settings with no improvement.
Im thinking motor is too high..Cavitation plate is about 2-3" above hull but originally I figured the setback would fix that...Then I read about prop blow out and blow out rings.I checked the prop and there is a small amount of exhaust that blows out behind it. I put my hand slightly over the prop/exhaust hub to simulate back pressure and a good amount of exhaust blows out from behind the prop.... I am absolutely baffled any input is greatly appreciated...Thanks.