[Vwdiesel] More Quantum Questions, progress

LBaird119 at aol.com LBaird119 at aol.com
Fri Feb 6 22:42:51 PST 2009

  The drip is either from the timing advance lever or more likely sounds 
like it's from the o-ring between the cast iron, distributor and the 
aluminum pump body.  It IS DIY-able but you're probably looking at 
all the seals going soon.  :-(  
  The older pumps will interchange but the different "something" on 
the top of this pump is probably the boost aneroid that you're 
referring to.  It compensates the increased air supply (under boost) 
with more fuel.  A regular pump doesn't so you either don't get 
the full power benefit of a turbo or you have to set up the fueling 
and use your foot to regulate the extra fueling.

In a message dated 2/6/2009 10:22:31 PM Pacific Standard Time, 
toensing at wildblue.net writes:

> Found &fixed coolant leak. Found that after a day or two, the IP looses 
> it's prime. After repriming the IP, it starts readily BUT a drip of diesel fuel 
> drops from the lower rear of the IP at the at the rate of about one per 
> second. Can't see where it is coming from but it is not from the 4 pipes that go 
> from the IP to the injectors. Am I going to have to remove the IP &is this a 
> DIY or just find a good place to overhaul the pump? FYI, this is an '82 
> Quantum turbodiesel. Are these IPs interchangeable with earlier IPs? I note there 
> is something on top of the Quantum's IP that is not on the earlier IPs.
> Bill Toensing, Nevada City, CA

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