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Anybody seen this failure before? Clutch.

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Old 07-30-2015, 07:33 PM
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User 52121
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Default Anybody seen this failure before? Clutch.

It's out of our Lemons car (an '86 N/A). Basic Sachs unit. Clutch was put in the car in ~2010, we've probably run a dozen? races on it. We're not hard on the car, and the car isn't anything special.

It failed 22h and 47m into a full 24H race (and, as luck would have it, right after we passed P1 to get us on the lead frickin' lap in P2). Driver upshifted from 3rd to 4th, felt a little muffled "bang", and nothing. Freewheeling. No noise, no racket, no indication beforehand it was about to go.
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Old 07-30-2015, 07:35 PM
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V2Rocket
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must've been a hell of a clutch-pedal dump from 3 to 4.
Old 07-30-2015, 07:47 PM
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JustinL
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Hey Jim, Here's a picture of my clutch I mentioned to you on Facebook.

Old 07-30-2015, 07:50 PM
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Originally Posted by JustinL
Hey Jim, Here's a picture of my clutch I mentioned to you on Facebook.

Yeah you're right looks like yours was on the way to failing the same way!
Old 07-30-2015, 09:33 PM
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fasteddie313
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Impressive destruction

Build it, race it, break it.
Now fix it..
Old 07-31-2015, 01:40 AM
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Tom M'Guinn

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I had one do that about a million years ago. It was on my 6 cylinder Pontiac back in high school. Mine made a loud bang when it let go. I was just driving on the street, not even driving hard.
Old 07-31-2015, 11:28 PM
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mikey_audiogeek
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Stock flywheel?
Old 08-02-2015, 10:49 AM
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Paulyy
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Originally Posted by Tom M'Guinn
I had one do that about a million years ago. It was on my 6 cylinder Pontiac back in high school. Mine made a loud bang when it let go. I was just driving on the street, not even driving hard.
Are you sure the last few words before it happened where "watch this launch"
Old 08-02-2015, 03:32 PM
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chrenan
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Originally Posted by Tom M'Guinn
Pontiac...high school...not even driving hard.
Sorry Tom, something doesn't add up in your story.



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