1985 150 Merc. Tilt/trim. Black Sludge?

James R

Commander
Joined
Feb 1, 2007
Messages
2,660
Ok, I now have the Merc manual and can see how the system tears down.
Investigating the sagging Tilt. The manual states to clean any debris from the check valve in the Port trim piston. Opened it up and boy is there some muck in there. Black sludge which I am sure is not helping the situation. Am I correct in assuming that this is from "O" rings.
Any advise on this would be appreciated.
 

James R

Commander
Joined
Feb 1, 2007
Messages
2,660
Re: 1985 150 Merc. Tilt/trim. Black Sludge?

Cleaned out the muck, replaced 'O' rings in the tilt cylinder, cleaned the port trim piston with check valve in it in my ultrasonic cleaner. 'O' rings and seals good. Looks like it did the trick.
had to buy the Merc manual to figure it out.
Is there no one out there that has a handle on these tilt/trim units?
Thanks anyway.
 
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