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Thread: cam bearing
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16th Oct 2019, 01:20 PM #1
cam bearing
I bought a new cam bearing for the jeep engine , the original front bearing is a babbit type , well, the new bearing is dura bond brand . The new bearing surface is somewhat rough, under the loupe I can see what looks like a lathe turning finish. The manufacturer claims its been burnished , this increases surface hardness. I can push a .005" feeler gauge between the cam journal and bearing , the bearing might compress a bit after I install it but that is right on the limit of tolerance , the manual says max. Is .006"clearance. Dura bond is a US manufacturer , they use their own technology .https://www.dura-bondbearing.com/pro...ance-bearings/
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16th Oct 2019, 05:41 PM #2Most Valued Member
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- Nov 2017
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- Geelong, Australia
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Is it a split shell type bearing, or just a circular one-piece type?
If its split shell check the clearance using Plastigage when its all assembled and torqued up.
If its a one-piece then fit it and measure. If you don't want to fit in case it precludes you from returning it for a credit - then perhaps measure the outside diameter compared to the bore it goes in to see roughly how much its going to shrink the bearing bore itself.
Steve
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16th Oct 2019, 06:42 PM #3
one
Its a one piece shell
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18th Oct 2019, 05:53 PM #4Diamond Member
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- Mar 2014
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- South of Adelaide
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how much interference does the bearing have in the bore? On a thin wall bearing the bore will crush down by the interference amount, i bet once it is fitted it will have the right amount of clearance. at a stab i would say the minimum clearance is 2thou?
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