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Topics - Stingr69

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Maintenance / Multiple Clutch Issues
« on: March 18, 2011, 01:22:12 PM »
I have taken my clutch apart and found some issues. The first thing that I found is known by many people but it deserves a reminder. Do not use a pilot bushing that contains any steel in the alloy. You can identify the wrong material because it will react with a magnet. Back in the day we could easily find the proper bronze pilot bushings (not attracted to a magnet) but it seems it has become incresingly difficult to find the bushings made from the proper material. The common bushings sold today have some iron content in them and do not work as well as the original material. They have a tendancy to gall the transmission input shaft tip and they can make a squeeling noise when the clutch pedal is depressed simmilar to a bad throwout bearing or other transmission problem. I found out the hard way. I have a proper bronze pilot bushing on order from 5speeds dot com.

The next issue I found was that the clutch pressure plate was not clamping down on the disk evenly. If you look at the picture below you will see there has been no significant wear from about 3:00 to 6:00 on the flywheel. From 6:00 and beyond you can see heat checks and small cracks. I suspect the pressure plate was not releasing evenly and the area that is nearly unworn was caused by the pressure plate being out of parralell with the flywheel on release. This setup has not been abused and it was adjusted properly. The flywheel was resurfaced at the time of the new clutch install. It was a Centerforce Dual Friction setup. I am on the fence about just throwing it in the trash rather than just remove the weights and try it again. I just don't need the head aches.

Let me know if you have seen this issue before.


General Discussion / The end of the big block
« on: December 20, 2009, 12:23:24 PM »
News Story - Chevy Tonawanda shuts down Big Block production.

The end of an era.


Decoding/Numbers / panel stamping numbers
« on: January 25, 2009, 11:46:37 AM »
I have the old sheet metal that I replaced when I repainted my car. Is there any way to decode the date stamps on the front fenders and where are the codes? I would like to throw this stuff away especialy if they are not original to the car. 


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