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Bird911 Bird911 is offline
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Join Date: Jul 2013
Location: Montreal, Canada
Posts: 205
Garage
I was about to send back the rod bearings to Pelican yesterday. I thought it was a good idea to measure all of them just in case somebody call me back on the reasons of the return. After doing so, what I’ve say in post #16 ‘’The Glyco measurement were all over the place’’ is not entirely correct, and I would like to bring a precision;
The center part of the bearing all measure 0.0585’’ but the tapered end (measured 1/8’’ from the edge) are much less accurate, ranging from 0.0575’’ to 0.0585’’.

I then noticed that all of the bearing that we tried were showing a small mark on the edge near the notch (circle in red on the picture). I have measure the thickness of the bearing at this location, and I got results from 0.0605’’ to 0.0625’’. This is huge compare to the rest of the bearing. I’m convinced that this small but high spot is the cause of the marks on the flat ends (blue circles) since it’s pushing the shaft on this side of the rod, and that is causing the rod to seize.

The original Porsche bearing does not have this high spot. I have to conclude that this is a manufacture defect on this lot. I would also stay away from other lots run at the same South African plant.








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Old 03-27-2015, 07:33 AM
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