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b16a2 plastigage results. what do we think.

Old 07-17-2015, 01:14 PM
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Default b16a2 plastigage results. what do we think.

Going by the following pics. Would you say these are good results?
Fitted with new standard fitment acl bearings.



Old 07-17-2015, 01:19 PM
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Default Re: b16a2 plastigage results. what do we think.

did you clean the journals well? i say this because any oil left over can cause a false reading.
Old 07-17-2015, 01:29 PM
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Default Re: b16a2 plastigage results. what do we think.

Yes. Cleaned with microfiber and torqued to 45lb with lube arp2000 bolts
Old 07-17-2015, 04:25 PM
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Default Re: b16a2 plastigage results. what do we think.

Is it just me or does metric plastigauge look a lot bigger than american standard?

I'd say it looks to be just a hair less than 1.5 so I'd say it's right about 1.4mm .

Curious how big (diameter) your plastigauge is before you squish it? How much bigger than fishing line is it?
Old 07-17-2015, 04:32 PM
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Default Re: b16a2 plastigage results. what do we think.

should have used green not red
Old 07-17-2015, 05:12 PM
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Default Re: b16a2 plastigage results. what do we think.

yeah i also use green for the bearing tolerances. isnt the red the next size larger making it harder to estimate...
Old 07-17-2015, 08:02 PM
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Default Re: b16a2 plastigage results. what do we think.

Dont use plastigauge..u should use plastigage in inch or mm..
Old 07-27-2015, 12:00 PM
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Default Re: b16a2 plastigage results. what do we think.

I think you should have used green not red.
Old 07-28-2015, 05:38 AM
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Default Re: b16a2 plastigage results. what do we think.

I would also suggest green as it is supposed to be more accurate under .003 clearance BUT I would also recommend using outside micrometers and a dial bore gauge if you plan on building your own engines.

The inherent subjectivity of Plastigage is no replacement for the +/-.0001 of micrometers and a bore gauge or inside micrometer. If you margin of error on plastigage is +/-.0005 up to .001 then it's potentially 30-50% error on your exact clearance.
Old 07-28-2015, 06:48 AM
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Default Re: b16a2 plastigage results. what do we think.

assuming that's measuring in thousandths, I would say 0.0013-0.0014" is a little tight on the rods.
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