identifing over/undersized bearings
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identifing over/undersized bearings
Hi all,
I am in the process of rebuilding a '62 292. I just pulled the pistons and am trying to determine if the crank has been turned or not. My question is :
Is there an easy way to identify over/undersized bearings? I have inspected the rod bearings and have not found any number that might indicate a size. The bearing numbing on the rod bearings are FoMoCo bearing 6211-A with a T 500 below the Ford logo.
Thanks in advance.
/redf100
I am in the process of rebuilding a '62 292. I just pulled the pistons and am trying to determine if the crank has been turned or not. My question is :
Is there an easy way to identify over/undersized bearings? I have inspected the rod bearings and have not found any number that might indicate a size. The bearing numbing on the rod bearings are FoMoCo bearing 6211-A with a T 500 below the Ford logo.
Thanks in advance.
/redf100
Logistics Pro
Joined: Jan 2002
Posts: 4,907
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From: suburban atlanta
Generally speaking, rod and main inserts will have the undersize stamped on the backside of the shell, in the format 010 or 020, etc. You could get select fit bearings in the past, that were a bit smaller in diameter than standard as a dealer part. I believe they were marked also, but it's been since the mid 70's that I used them.
tom
tom
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Thanks for your help!!!!!!! I thought that the bearings should have the size stamped if they were different than standard. I will be pulliing the mains tomorrow and will check them out. I hope I find everything okay there as well. Thanks again. I wish I knew one tenth of what you all know.
/redf100
/redf100
Logistics Pro
Joined: Jan 2002
Posts: 4,907
Likes: 39
From: suburban atlanta
Hang around long enough. Get tons of dirt under your nails, and you will. No one seems to give a c**p anymore about this type of knowledge, but it will come back and bite some people when they have to pay $xxx for simple service because they cannot find anyone to do it any more.
Remember: they can out source lots of jobs, but it sure is hard to outsource the plumber fixing your sink, the electrician installing a new outlet, or the mechanic maintaining or fixing your car. Waldoes, anyone? .. (old sci-fi ref)
tom
Remember: they can out source lots of jobs, but it sure is hard to outsource the plumber fixing your sink, the electrician installing a new outlet, or the mechanic maintaining or fixing your car. Waldoes, anyone? .. (old sci-fi ref)
tom
Senior User
Joined: Aug 2005
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The bearing inserts should have the under size marked on it as stated above. From what you have described it appears as if you have standard size inserts - probably original. The only way to confirm is to mike the journals and compare the size with the factory dimensions. Good luck on your rebuild.
On a side note it has happened that during manufacture - don't think FORD ever had this problem, it could happen that a number of cranks were re sized or machined under size and fitted with undersized inserts with no markings.I did see this with Chrysler years ago.
On a side note it has happened that during manufacture - don't think FORD ever had this problem, it could happen that a number of cranks were re sized or machined under size and fitted with undersized inserts with no markings.I did see this with Chrysler years ago.
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