Oil relief valve removal and replacement-need assistance

[tannat]

Having issues getting the oil relief valve piston out (which is stuck). Using a coat hangar, WD40 and solvent did not do the trick.

Any ideas?

I''ve been told to unplug the DIC fuse and crank it-but think I want to make that a last resort.

I just installed this new piston Saturday, and it must have gotten stuck immediately.

Any fresh ideas on ensuring a functional piston once it is installed?

[Blackbird]

Which Saab are you working on?

[tannat]

Apologies-2006 9-5 automatic..

[MI-Roger]

With now two stuck pistons, are you sure the problem isn't with the body of the PRV?

[bmtastic]

My trick always work

[FONT=verdana]I used a M12 bolt to get the piston out .[/FONT]
[FONT=verdana]Insert straight up without touching the inside cylinder .[/FONT]
[FONT=verdana]Halfway in , you will be inside the bottom of the piston.[/FONT]
[FONT=verdana]Then push a bit deeper and start wobbling (gently)[/FONT]
[FONT=verdana]The clearance between outside bolt and inside piston is +- 1mm.[/FONT]

[FONT=verdana]The piston will come out bit by bit , without making damage .[/FONT]