[Lear35A]

Calibrating the 9201 special tension tool with the 9201/2 gage is described in the 944 8 valve shop manual on page 13-2c. With the gage in place the indicator is supposed to read 4.0 +/-0.3. Mine reads 3.6, so calibration is required. Picture and description are to stick a "small screw driver" through the hole on the bottom and turn the "calibration screw". Well, I can't see any screw to turn and neither a flat blade or phillips head small screwdriver that I stick in there can find anything to turn.

Anyone with this tool and gage done this successfully? What am I missing?

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[apex]

Lear - ha - apparently our site does not allow a link to rennlist: but take a look at this post, it might help (insert proper http:// before the text below)

forums.rennlist.com/rennforums/928-forum/547858-question-porsche-9201-belt-tension-gauge-adjustment.html

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[Lear35A]

That poster described exactly what I see. Unfortunately he doesn't give a link to the 928 procedure he found, but thanks for the link!

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[apex]

Lear - maybe this will help - here's a pelican post with the same query as you - with a link to a 928 site describing an alternate calibration procedure.

http://forums.pelicanparts.com/porsche-924...adjustment.html

http://www.928gt.com/t-wallytbelt.aspx

Ha - I have a 9201 but I don't have the calibration bar. Need to get my hands on one.

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[Lear35A]

Yes, I've read those, but frankly I don't believe him. Turning the knurled bezel changes the reading, but it does not calibrate anything. And why would there be this hole in the bottom if there was nothing in there to adjust?

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[banditsc]

If you think of it like a dial gauge you are zeroing out, it makes some sense.

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[jfrahm]

All I have done is adjust the gauge face to zero or calibrate the 9201. Like a dial caliper.

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