power pack repair

[SteveG]

Hi Bill,

Thanks for the reply. But my analysis of this is less optimistic. Removing the cover and working from the top down into the bottom of the canister does not seem feasible. The service manual says to remove the unit from the aircraft, a job I conservatively estimate as being 5 hrs. of backbreaking work. And then there's the matter of setting the pop-off pressure. Apparently requiring capping outlet ports and connecting a lever pump & gauge. Both the manual and the overhaul shop suggest that once opened it is indeed a Pandora's box of cascading problems and that an overhauled unit may be the more cost effective solution in the long run. That said, I'm still considering the field repair option if anyone can report an actual success story.