Johnson Sticking Rings

G

gdrapac

Recruit
Joined
May 29, 2004
Messages
1
I have a 1989 Johnson 175hp. I have rebuilt the engine twice due to sticking rings. I am a maintaince nut, using "Ringfree". My question is one of prop selection. I can't reach rated RPM and feel the engine is lugging on my 21 Mako that's built like a tank. Could this be causing the carbon/sticking?<br />Thanks For the Help!!
 
O

oscar boy

Seaman Apprentice
Joined
Mar 19, 2004
Messages
41
Re: Johnson Sticking Rings

From what I have learned on this forum you motor should be capable of turning 5800 rpm with an avrage load. Not being to reach this rpm will cause the motor to lug and carbon up under the rings. Then the will catch in the ports and break.<br />Search this forum for post by Dhadley he is very knowledgeable on this subject. His member number is 685. Search for 5800 rpm.
 
S

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
Re: Johnson Sticking Rings

Start by posting your rpm at WOT & what prop you have on it now.
 
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