New 383 engine, spun rod bearing
07-09-2004, 08:26 AM
#21
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Location: Helsingborg Sweden
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Originally Posted by jburnett
I'm going to go with improper bearing setup... Did they mic the rod bores with and without the bearings? Did they torque the bolts or stretch them... Did the load and unload the bolts two or three times before they checked the clearances? And another important question: these are new rods, correct? New rods will shrink .0005" or a little more once they're run which if they're improperly set up (ie., too tight) they will certainly cause that problem.
To this day I am shocked at the machine shops who profess to be "performance machine shops" that are everything but...
-Jeb
To this day I am shocked at the machine shops who profess to be "performance machine shops" that are everything but...
-Jeb
My bet is that the new guy just slaped the rotating assembly together without checking any of the clearences, assuming that they were fine because the the crank/rods were new.
Here is another picture:
07-09-2004, 05:52 PM
#22
Melting Slicks
140 miles and already at the track?
I would rather give an engine as much time as need to get acquainted with the new parts than have to go thru the rebuild process again.
Sounds like you need to find another shop or learn to do it yourself.
I would rather give an engine as much time as need to get acquainted with the new parts than have to go thru the rebuild process again.
Sounds like you need to find another shop or learn to do it yourself.
