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> Subject: Re: (T3) $##@@%&* > > > On 5 Jul 2001, at 0:42, Dave Hall wrote: > > > You need to take care with the tension on the diaphragm. > It needs to > > be relaxed (ie when you retighten) with a certain amount of pump > > stroke applied, or the diaphragm may tear in use. I > probably have the > > figures somewhere, but it will take some finding and I haven't the > > time right now. > > Yes, good point. I think they just want you to tighten the flange > screws when the diaphram is in mid stroke. That minimizes the > stress on it at both extremes. > > Didn't VW have a jig for holding the pump at this position while > tightening? > > Yes, there was a jig for this, but not many mechanics used it. They just left the screws loose, turned the engine until the push rod was in the middle of it's stroke, installed the pump, and then tighened the screws. Russ Wolfe russ_wolfe@MAHLEParr.com Mahle Parr Filter Systems 505 E. Madison Winterset, IA 50273 ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/