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Old 06-12-2009, 12:01 AM
Bio300TDTdriver Bio300TDTdriver is offline
Unofficial wormcan opener
 
Join Date: Dec 2005
Location: Ashland, MA
Posts: 2,602
Quote:
Originally Posted by engatwork View Post
Here is a shot of the old and new vacuum pump from a 1995 E300 with 243k miles on it. The bearing on the old vacuum pump is actually kinda hard to turn. My suggestion is to change them out before you get to 250k miles to protect that engine.
I would even say 200,000 to be safe. That's when I did mine.
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