 Plasti Gage, Cyl head seats |
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| 930cabman |
 Jan 1 2022, 09:59 AM
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Advanced Member  Group: Members Posts: 3,115 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States 
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Building my first VW/Porsche flat engine in 30+ years, I am taking my time checking and double checking. The $$ investment is not that great, but I want to get it right. Case is together with good main, rod and cam clearances. Engine spins, not too loose, not too tight. Assembling the pistons and cylinders I added some short sections of 1/2" pipe and loosely tightened the cylinders to the case. Checking across the tops of the cylinders with a straight edge I was getting a rocking on #3 and #4 (about .008 at one end with three contact points at 0). Took everything apart and cleaned all mating surfaces, now I am getting about .002 or so. I did not send the case in to a machine shop for checking all the mating/bearing surfaces.
I am thinking several small pieces of Plasti gage on the tops on the cylinders/head surface to check % of mating surface. I have lapped the cylinders to the heads. Happy New Year to all, enjoy in good health |
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Posts in this topic
930cabman Plasti Gage Jan 1 2022, 09:59 AM
Superhawk996 I'd suggest pulling the case apart and sending... Jan 1 2022, 10:27 AM
windforfun
I'd suggest pulling the case apart and sendin... Jan 1 2022, 05:10 PM Superhawk996
FWIW, 0.001" = 1 mil = 1/1000". 0.000... Jan 1 2022, 07:59 PM windforfun
FWIW, 0.001" = 1 mil = 1/1000". 0.00... Jan 1 2022, 09:04 PM windforfun
[quote name='Superhawk996' post='2971169' date='J... Jan 1 2022, 09:13 PM windforfun
[quote name='Superhawk996' post='2971169' date='... Jan 1 2022, 09:39 PM iankarr :agree:
On my 2056 build I had the same issue. L... Jan 1 2022, 10:33 AM 930cabman I was able to try the Plasti Gage method earlier a... Jan 2 2022, 11:14 AM 930cabman Checked with 2 different local old school VW engin... Jan 3 2022, 11:14 AM  |
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