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Old 12-19-2009, 07:46 PM
micalk micalk is offline
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Join Date: Jun 2008
Location: Simi Valley, CA (SoCal)
Posts: 454
Quote:
But, getting that piston out was a bit of a PITA. I had to pry it out of there with a couple of razor blades.
Moving the engine with the power steering belt will move the pump in and out rather quickly, and you could have jacked the piston over so it catches onto the threads of the piston rod and push it out that way.
Quote:
The real frustration was putting the top check valve back in while trying to align the pump cover gasket. It was all kinked up because of the packaging. There was a little cussing involved with that procedure. But I got it in there.
Yep, that gasket is the biggest bugger when it's deformed. But a dab of wheel bearing grease at the edge of the check valve would have held it while you mess with the gasket. The least amount necessary for it to "stick" since this is the dry side of the pump.

Good job! Now that you know your pump is good, check the rest of the vacuum system. Pull and block off each vacuum line off the main line one by one until your vacuum remains steady. If everything is blocked off and the only one left is the booster, then be prepared to replace it in the near future. If you find one of the other lines causes the jumpy gauge (most likely climate control) let us know and we'll help you isolate it.
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mjk

'84 300SD 119KMi (Liesl der Diesel)
'84 300D 326KMi when the oil left (former parts car)
'82 300SD 253KMi (new parts car)
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