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-   -   Quick time bell housing question. (https://classracer.com/classforum/showthread.php?t=39127)

vetteboy 02-22-2012 01:01 PM
Quick time bell housing question.
 
I have a quick time bell housing and have problems getting it parallel to the block. I have .004 run out right know, is that close enough? I have had the bell housing ground flat. Do you guys then shim the bell housing to the block or do you somehow machine the block perpendicular to the crankshaft. Thank Brett

Sean Marconette 02-22-2012 02:22 PM
Re: Quick time bell housing question.
 
From what you are describing, it sounds as though you are checking the bellhousing parallel to the block? Have you verified the register bore? That is the measurement that is critical as well.

This is an article from Lakewood, and will be the same for any bellhousing.

The .004 could be paint on the block, bolts not torqued the same as well. More information is required.

http://www.gt40s.com/forum/attachmen...1&d=1292251774

Sean

vetteboy 02-22-2012 10:14 PM
Re: Quick time bell housing question.
 
Yes I was talking about the parallelism to the block. I have sanded all the paint off the block and have no interference in any of the bolt holes. i had the block linebored. I just want to get everything as close as possible.
Brett

Chad Rhodes 02-22-2012 11:19 PM
Re: Quick time bell housing question.
 
Quote:
Originally Posted by vetteboy (Post 311000)
Yes I was talking about the parallelism to the block. I have sanded all the paint off the block and have no interference in any of the bolt holes. i had the block linebored. I just want to get everything as close as possible.
Brett
Contact scott at south land. They have been having to machine them back to parallel

tj310 02-23-2012 08:30 AM
Re: Quick time bell housing question.
 
We have one bellhousing that I put a .060 shim on the top left side. This trick worked on at least two diff blocks. I used to dial both round and flat. GM also recommends dissambly of the trans, bolt on the empty case and dial in the rear bearing register using shims between trans and bell to correct.---Trevor

Run to Rund 02-23-2012 11:02 AM
Re: Quick time bell housing question.
 
I have ground the block plate before--cheaper to replace later if another block is used in the future. .004 is probably OK because of the distance from the pilot bearing, assuming you are measuring at the bolt areas. Also you can change the order and tightness of the bolts in their sequence to see if the measurement changes.


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