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corrosion! - the devil's playmate (m) (archive)

[ Follow Ups ] [ 3-series (E36) Message Board ] [ Msg. Board FAQ ]

Posted by 93-318is on July 15, 2001 at 21:21:46:

In Reply to: rusted upper shock mount posted by Ken on July 15, 2001 at 21:07:14:

Try penetrating oil instead of WD-40, over sya, a day - 5-6 times. Give it a chance to work.

If that doesn't work, a little heat might but that's kinda tricky. You can always take the shock out & work on freeing the mount in a vice & hammer tapping, but I'm not sure I'd trust the elastomer not being weakened after that kind of abuse.

If it were me & pen. oil didn't work, I'd remove the shocks, muscle the old mounts off & chuck 'em for new ones. I assume with the corrosion, the old mounts have to have been in there for a while, so - why not get new ones?


Tomorrow I'm on my way to Brainerd International Raceway for two days of fun, so as part of track prep I was going to remove my rebound ajustable Koni's and firm them up a bit. Much to my dismay the rear shock mounts are rusted tight to the piston rod! Despite liberal use of WD40 it won't budge and it is difficult to really put any torque on the mount as the bushing flexes. I also tried reinstalling them with the piston nut loose and driving for twenty miles on the roughest roads I could find--I was hoping the rebound force would be enough to loosen the grip.

Short of destroying the mount does anyone have any ideas on how I might liberate my shock?

Ken Koch
318i with all the suspension mods





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