Originally Posted by Longhorn
I just got my 283 block back from the machine shop.They bored the block 0.30 and turned the crank 0.10 on the main and rod journals.I just checked my main bearing clearance with plastic gauge and this is what I am getting.on the front main cap
#1 .004
#2 .0015
#3 .001
#4 .001
#5 .0015
The #1 is what I dont like .This is out of the .003 spec .Would you guys be concerned about this or run it like it is.I check it twice to make sure and I got the same reading.
Thank you for your help .
Jim

And they bored it way out of tolerance at .3, I think you mean .03 ??

It is either likely they goofed up on the grinding of the journal or the bearing shell is not correct. You need to find someone that can measure everything. The plasigage is fine to find a problem but its not going to tell whats causing the problem.

Last edited by Truckrolet; 08/13/2013 3:18 AM.
Kicking self for selling off my Taskforce trucks.
Still looking for an LCF or conventional big bolt in decent shape.


As of 10-26-2022, A 55.2 Taskforce long bed now the work begins