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Old 08-04-2011, 12:46 PM
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How to check bellhousing alignment?

Hi all hope you can advise me. I am just about at the point on my corvette where i need to check the bellhousing alignment. Looking at the videos online I don't understand how you make sure the indicator is stuck to your crank concentric. Isn't that a requirement for accurate measurement?

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Old 08-04-2011, 05:11 PM
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Nope, just set the magnetic base on the flywheel and engage the magnet, with the arm and indicator in a position so that it will read off the bellhousing register hole(the hole that the transmission front bearing retainer pilots into)...then turn the crank one revolution and read the runout on the indicator(total needle movement).

Divide the amount read off the indicator in half and note the position of minimum runout...this is the direction the bellhousing has to be moved and the amount of offset needed to correct the package.
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