George -
It doesn't take much wear to your rubbing block to start to throw off the
geometry of the points alignment. I've seen occasions where the gap is in
spec but the dwell isn't because the geometry is all wrong from wear of the
rubbing block. It's not always the contact surfaces that render your points
unusable. Like Peter said, if there is any doubt just replace them.

Barry

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Peter Frederick
Sent: Wednesday, July 27, 2005 9:06 PM
To: Mercedes mailing list
Subject: Re: [MBZ] Dwell


Standard direct points will last maybe 5000 miles.  Points on
transistor switch coils will last maybe 15,000, not usually more.

Dirt or oil kill them, make sure the new ones are lubricated correctly
(a tiny amount of high melting point grease on the BACK side of the
rubbing block, not the front!).

It's easy enough to get the switch set wrong, so the dwell angle is way
off, I've done it!

Peter


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