Author Topic: Bearing clearance  (Read 4853 times)

airframer

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Bearing clearance
« on: March 23, 2010, 12:13:56 am »
So I just used plastigage to check the connecting rod bearing clearance and it was .010, that is way above what it should be, do they sell oversized bearing kits or am i looking at getting a new crank?
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hillbilly

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Re: Bearing clearance
« Reply #1 on: March 23, 2010, 07:03:52 am »
summit racing sells all kinds of them thats where i usually get mine from.
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airframer

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Re: Bearing clearance
« Reply #2 on: March 23, 2010, 10:34:13 am »
I went to summit and all I saw were undersized bearings, correct if i'm wrong and i hope for my sake i am but if the gap between the stock bearing and connecting rod is .010 then i need and oversized bearing to make up for the difference correct?
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Rusty XJ

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Re: Bearing clearance
« Reply #3 on: March 23, 2010, 01:13:13 pm »
I think you're looking for undersized. It goes by the size of the inside diameter. The bearing will have more material which would lead one to believe it's "oversized" but the inside diameter is smaller.
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airframer

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Re: Bearing clearance
« Reply #4 on: March 23, 2010, 01:46:32 pm »
Ah so when they say undersized they mean the inside diameter is smaller than original, i thought it referred to the gap. so if it is .010 undersized that means the inside is .010 smaller, and my gap is about .010. Sounds like it might work.
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Davew

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Re: Bearing clearance
« Reply #5 on: March 23, 2010, 03:52:13 pm »
Look on the back side of your old bearings they will indicate  STD., .010, .020,.030.  Did you put a crank in? Hard to tell from your pics. It's very rare that you screw up a bearing and the crank is OK . It's also possible that the old bearings can be all different sizes.
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airframer

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Re: Bearing clearance
« Reply #6 on: March 24, 2010, 12:00:52 pm »
Lol its the stock crank, all the bearings are the same and say .001 I also micd them all and they are the same size.
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