Pelican Parts Forums - How do I fix a leak at the case seam?

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- - How do I fix a leak at the case seam? (http://forums.pelicanparts.com/porsche-911-technical-forum/76119-how-do-i-fix-leak-case-seam.html)

Quote:

Originally Posted by 88911coupe (Post 11991139)

I looked into the tube and can't see any indication of anything leaking. Maybe I should remove the guide tube?

good idea there is O ring on it ..most of the time is not being replaced and creates oil leak

Ivan

If you attempt to remove the guide tube, be careful with the screws as they're usually really tight. Use an impact driver BEFORE you strip out the heads. At work I use a 1/2" drive impact wrench on the slowest/lightest setting and let the impact hammers do the work. VERY slow, barely squeeze the trigger until the screws start to move. If you try to attack them at full tilt, the bit will simply round out the heads of the screws.

If you've already tried removing them and stripped out the heads, well, good luck. Use a pencil tipped punch at the edge to tap tap tap and get the screws to loosen up. One good hard whack on the edge with the punch, then set the punch at an angle and start tapping away in the CCW direction.

For delicate impact work (I know, it's an oxymoron), use an old school hand-held impact driver, the kind you hit with a hammer. It both drives the fastener inward and twists, to help loosen it. Saved my butt many times on motorcycles.