Date: Fri, 26 Nov 2004 19:42:37 +0100
From: "OKOK!" <rootnospamlhost.not>
Subject: Re: Saab 99 water pump thread?

"Dave Hinz" <> wrote in message > What is the thread on the water pump of a Saab 99? Old style, and/or > new style. I know it's left handed and metric, but before I order a tap > and die set for it, I'm hoping someone here can tell me definitively. > > I have borrowed a water pump removal/insertion tool from our local > independant guy, and his is chewed up to the point of almost unusuable. > If I can make some new parts for it for him, that'll work better for me, > and will give him incentive to loan me tools again if I need something. > > Anyway, 12mm left hand, maybe, for the new, and 6mm left hand for the > old style is my guess, but I'd love to get a confirmation. I don't have > thread gages for metric... > > Dave Hinz Hi Dave, I'm sorry I cannot go out and measure for you.... tools are far away, and I dont have a pump-shaft outside of an engine to measure. From memory then, that is all can do: My 1980 99 pumpshaft thread was left handed, metric, definately NOT 6 mm. AND definately NOT 12 mm. I think it was 8 mm, as the wrench I used was 12 or 13 mm. If the diameter of the shaft is 8 mm, then the thread is most likely 1.25 mm. (8x1.25) I made a tool from a thing they use for tightening steel cables, I am sure you know it. These consist of two threaded pieces with hooks, one left handed thread, one right handed thread. They are connected by a sort of tube with left handed thread on one end, and right handed thread in the other end. You tighten the cable by turning the middle part..... what is that called in English? Good luck, Richard.

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