Quote:
Originally Posted by Junkman
Any way I measure, I get 8" at idle. Vacuum goes up to 20" if the engine is revved and stays there as long as the engine is revving. Vacuum slowly settles to 8" when the engine returns to idle. The one way valve tests good.
I'm going to check warranty but will likely end up replacing or installing a kit. Any suggestions on what kit or what brand of pump?
I won't explore further to fine reasons for failure until parts are in hand because I want to keep the car mobile. Strange that this crapped out with out many miles.
Edit: I think the pump was a Pierburg
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If you are measuering directly at the vacuum pump you have some issue in the Check Valve or Vacuum Pump itself.
When I had a low vacuum and I mean way back in like 2008-2009 I removed the Check Valve and found it full of Gunk. I holsed the innards of the check valve out with WD-40 and re-installed it and had no more issues from the Check Valve. That was a long time ago.
Later I took off the the vacuum pump and took it apart and cleaned it and re assembled it.
I have also pulled the pump of for inspection of the Arm at least 2 times. Never found any issues.
Not sure about the avaliablity of Kits as they were getting scarce and never were cheap for the piston types.
There was 2 kits. One for the Arm and Bearing end and the other for the Piston end with the valves.