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ChrisBennet's Avatar
 
Join Date: Aug 2001
Location: Nashua, NH USA
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Grrr, rocker arm rebush clearance question

I'm inspecting some rebushed & reground rocker arms and the shaft to bushing fit is the same as ones with 100K+ miles. It's not really loose, just not as snug as a new rocker arm. How critical is the fit? I don't have a way to (personally) measure the bushing's I.D. so I can't give you actual numbers.
I'm I pissed for no reason?
BTW: These rockers were not done by C.E.
-Chris
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Old 03-30-2005, 04:55 AM
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camgrinder's Avatar
 
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You can buy an inexpensive telescoping gauge to measure the I.D. of the bushing. Then measure your rocker shaft O.D. and get the clearance.
http://www1.mscdirect.com/CGI/NNSRIT?PARTPG=NNLMK3&PMPXNO=1756643
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Dougherty Racing Cams
Old 03-30-2005, 08:05 AM
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Yeah, I need to get some snap gages. My bore gage doesn't go that small.
-Chris
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Old 03-30-2005, 07:27 PM
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What is the deal with snap guages? Take a measurement and then use a micrometer to get number??

Jeff
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Old 03-30-2005, 09:57 PM
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Once you are able to measure the bore & know the clearance between rocker & shaft, do you have a spec to know whether you're within tolerance?
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Old 03-31-2005, 03:47 AM
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Chris,
Please don't tell me those rocker arms came from RAS. I had mine done there after your earlier comments.
Jack
Old 03-31-2005, 04:07 AM
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Quote:
Originally posted by 75-911S
Chris,
Please don't tell me those rocker arms came from RAS. I had mine done there after your earlier comments.
Jack
OK, I won't

This was the first time I'd tried this vendor. What sucks is that I told my friend/client about this place so he sent his rockers there before giving them to me to use in his motor.

Here's the thread that sent you down the path.

cams and rockers

-Chris
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Old 03-31-2005, 04:44 AM
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Ugh. too late now.

How about the Atlantic Enterprises people for head work, etc.? Are they okay?

Jack
Old 03-31-2005, 05:05 AM
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Quote:
Originally posted by 75-911S
Ugh. too late now.

How about the Atlantic Enterprises people for head work, etc.? Are they okay?

Jack
YES! They're the greatest.
-Chris
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Old 03-31-2005, 05:08 AM
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