Counting Undersize bearing--> Which direction? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Geri · 08-13-2013, 05:23 AM

Hello together!

I need your help again with my 1955 chevy inline 6 Motor. I have a logical Problem to understand the counting-system

I measure the Main Bearings and the Rod Bearings with a Plastigage stripe. The clearance is on top of the highest tolerance. I want to replace them with the next selectable undersize.
For example: On the main bearings its a stamp with 002". What is the next undersize to minimize the clearance? 001" or 003"? Sorry for the supid question.With counting the oversize i have no problems. But how is it counted by undersize????
Is more also more or is it getting less??? im confused

Thanks for help

Geri

08-13-2013, 05:23 AM	#1
Geri Registered User Join Date: Feb 2012 Location: Seukendorf Posts: 31	Counting Undersize bearing--> Which direction? Hello together! I need your help again with my 1955 chevy inline 6 Motor. I have a logical Problem to understand the counting-system I measure the Main Bearings and the Rod Bearings with a Plastigage stripe. The clearance is on top of the highest tolerance. I want to replace them with the next selectable undersize. For example: On the main bearings its a stamp with 002". What is the next undersize to minimize the clearance? 001" or 003"? Sorry for the supid question.With counting the oversize i have no problems. But how is it counted by undersize???? Is more also more or is it getting less??? im confused Thanks for help Geri



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