c.ruber |
Mon Sep 29, 2014 2:48 pm |
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I recently purchased an AS-21 case that has some machine work done that makes it a good build platform. It is used and want to confirm that the standard bore will NOT need a line bore. I can use a bore gauge but need to know the dimensions of a standard bore. Thanks. |
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glutamodo |
Mon Sep 29, 2014 3:01 pm |
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It's in the Bentley (and most other) service manuals, if you don't have one of those, it's in Without Guesswork:
http://www.thesamba.com/vw/archives/manuals/1971withoutguesswork.php
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c.ruber |
Mon Sep 29, 2014 3:29 pm |
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Thanks for the info.... I'll run with that and get to checking. |
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bugguy076 |
Tue Sep 30, 2014 3:35 am |
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The quickest way to tell if a case needs line bored is to look at the center main journal. If the bearing has left impressions in it and there is a ridge in the center that your finger nail catches on, It needs bored. |
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glutamodo |
Tue Sep 30, 2014 6:34 am |
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Also, bolt the case together empty, torque the middle 6 bolts, and then see if the center case saddle meets flush. (put a flashlight in there and look for an air gap) If it doesn't meet flush the case is warped and is suspect. |
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c.ruber |
Tue Sep 30, 2014 3:35 pm |
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Thanks for the useful info. I'll bolt it up and get to checking... |
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