1989 Johnson 70 hp Trim slipping

D

derooster

Cadet
Joined
May 27, 2010
Messages
8
My problem is that if I trim the motor up beyond the lower fine trim ... it does not hold and slips back to the highest point on lower trim. Any idea what would cause this? It does not appear there are any leaks or anything.

It raises the motor all the way up for travel.

Thanks
 
R

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: 1989 Johnson 70 hp Trim slipping

if the engine is running then it is suppossed to do that. It prevents people from accidentally overheating their engines.
 
Joe Reeves

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: 1989 Johnson 70 hp Trim slipping

The PTT unit has 15? of trim, after which the tilt portion takes over. As stated above, the tilt portion does not hold when power is supplied and the unit is forced to drop down to the outmost trim angle. This is the normal function of the unit.
 
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