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I would rather be driving
 
jpnovak's Avatar
 
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
964 cam sprocket offset spec?

I am swapping cams on a 964. Does anyone have a spec for the offset value between the cam sprockets and int shaft?

I have the measurements but not the offset spec. I think it is different than the usual 911 (up to 3.2) value. Since these are different cam blanks I want to make sure the sprockets are shimmed correctly.

Thanks

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Jamie - I can explain it to you. But I can not understand it for you.
71 911T SWT - Sun and Fun Mobile
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Old 10-18-2018, 05:35 PM
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I don’t have the spec but the intermediate shafts are interchangeable so the 3.2 spec and set up should be the same
Bruce
Old 10-18-2018, 05:56 PM
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I would rather be driving
 
jpnovak's Avatar
 
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
Found the spec.

For reference:
Measured from Int shaft face to cam sprocket face.

Right side (passenger) target 78.77 +/- 0.25mm
Left side (driver) target 133.57 +/- 0.25mm.

I realize the factory just says to count shims. Not good enough for me since I swapped out cams. I needed to measure.

Right side is 0.06mm off. Yeah!
Left side needs a 0.50mm shim.

__________________
Jamie - I can explain it to you. But I can not understand it for you.
71 911T SWT - Sun and Fun Mobile
72 911T project car. "Minne" - A tangy version of tangerine #projectminne
classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks
Old 10-18-2018, 06:32 PM
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