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Input drum damage!!!

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Old 06-01-2008, 09:53 PM
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Default Input drum damage!!!

I wounder why the 3 and 4 clutches where TOAST.... lol Tell me what you guys think of the damage and what might have caused it.. thanks

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Old 06-01-2008, 10:18 PM
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Judging by the hot spots on the steels and very worn frictions, I would suspect that excessive clutch clearance with hard 2-3 shifts is what broke the drum. Just a guess. Vince
Old 06-01-2008, 10:36 PM
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Same thing I told him when he sent me the pictures to host for him.
Here are the actual pictures and for anyone asking no this is not a PerformaBuilt unit. I just hosted the pictures for him since he couldnt get them to load anywhere. I beleave its a home built unit.

[IMG]file:///C:/DOCUME%7E1/PERFOR%7E1/LOCALS%7E1/Temp/moz-screenshot-3.jpg[/IMG]
















I would agree with Vince excessive wear and or clutch clearance and possibly excessive line pressure could be the cause.
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Old 06-02-2008, 01:07 AM
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x-ray the drum and or use a flourescing dye on it and I bet the metal looks like a sponge. Looks like a contiminated casting. the snap ring lugs fialed and the rest of the damage ensued. Remember the parts your using are only ever so slightly over engineered.
Old 06-02-2008, 01:42 AM
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to much LP and too much clearance
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Old 06-02-2008, 09:54 AM
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This is not a PerformaBuilt unit. That is true... It was a stage 1 century built trans. There is another post about this trans.. 3rd and 4th clutches if you want more info.
Old 06-03-2008, 10:24 AM
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Too much line pressure and too much clearance in the 3-4 frictions.
Old 06-03-2008, 12:05 PM
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I am looking into having and input drum built and shipped to my house...That way, it can be installed and the car is back on the road.




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