gingerprince
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| posted on 27/10/12 at 06:06 PM |
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Plastigauge
Whilst I've got my engine apart I'm going to measure the bearing clearances. According to the manual, rod bearing clearances should be
0.0012 - 0.002 (limit 0.002) and main bearing 0.0007 to 0.0014 (limit 0.002).
You can get red plastigauge (PL-A) which is for 0.001 to 0.007, or PL-X which is for 0.0007 to 0.0017.
Do I get the red and work on the assumption that provided it squashes to less than 0.002 it's fine (and assume it won't be tighter than
0.0007)? Or do I get the other stuff, which will be more accurate, but I won't be able to tell if rod bearing is within limits if it's
over 0.0017?
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gingerprince
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| posted on 30/10/12 at 05:30 PM |
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No one used it that can advise?
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Bizarro
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| posted on 1/11/12 at 10:13 AM |
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I have used plastigauge to measure bearing clearances on turbo generator bearings, but this is checking clearances of .008"-.012"
For what you are doing I would use the .001-.007 and be happy if it is under .002". Plastigauge is not the easiest thing to measure when it is
at its thinnest as it easily tears, I assume you will be measuring it with a micrometer that reads to .0001"?
Years ago we use to use thin lead 'wire' which was much better than the plastigauge as it didnt tear, but I dont believe you can buy it
now.
Hope this helps.
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