Volov penta Dp290 trim rams rebuild

Sam Jenkins

Seaman Apprentice
Joined
Oct 16, 2020
Messages
49
Hi just undertaking rebuilding the trim rams (3860881)
on my volvo penta 290 outdrive as one of seals was weeping. Question is how do you fit the plastic part of the seal kit that sits over the oring on the piston part of the ram.
As you slide it over the piston it seems to stretch it and then you can't push it into the body of the cylinder without damaging it i have smeered everything in ATF hoping that this will allow it slide with no success.
Attached picture off the part I'm talking about
Any advice would be appreciated
Many thanks Sam
 

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jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,071
There used to be a guy on another site marineenginedotcom that
was real good with Volvo repairs.
His name might have been Rick.
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
13,024
Yes and if he’s not there, he’s on the Bayliner Owners Club site.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,079
Ayuh,..... Soften the rings in boiling water, 'n as they cool, they'll shrink up,.....

Ricardo was banded recently at marineengine,.....
 
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