Rotor Coating loss - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

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Old 01-05-2007, 11:53 PM   #21
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Now I'm almost convinced that I had a defective SC right from the beginning.
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Old 01-05-2007, 11:56 PM   #22
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Those that are following this topic will see my pics on page 1. The Bullet and the Zilla both saw somewhat equal amounts of water and methanol over the last year. At least that'* what we assume by discussing our frequency of use and testing.
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Old 01-06-2007, 12:00 AM   #23
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What is the difference between the coating used on your Series 1 SC and my Series 2

I don't know either, but maybe between that and the different case & rotor design.....are we really comparing apples and apples
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Old 01-06-2007, 12:05 AM   #24
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Paul, from what I've seen of them (having both types here at different times), they're the same. I'd assume yours would be some type of application defect. Not cleaning the rotors as well before yours were coated, rather than a difference in coating.

Or perhaps curing temperature or time after application.
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Old 01-06-2007, 12:28 AM   #25
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I was reading the FSM about the SC and it says if the SC blows enough oil out the snout to cause puddling, and it did a lot, then the SC must be replaced.

Damn, I wish I would have read that when this was still under warranty.....but then I probably wouldn't have swapped over to the Gen 5 Bullet Blower. :P
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Old 01-06-2007, 12:30 AM   #26
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GM'* FSM says to replace the SC because GM doesn't service them.
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Old 01-06-2007, 12:45 AM   #27
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If it blows oil out the snout, the snout is pressurizing due to leaks in one or both seals in the rotor assembly bearing plate. That'* the only reason (other than extreme boost overcoming those seals).
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Old 01-06-2007, 01:46 AM   #28
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So could it blow out if say extreme boost was produced before fully warmed up and the seals have expanded.
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Old 01-06-2007, 03:07 AM   #29
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There'* a video of BadSSEi running at the track that shows puffs of smoke at each shift. The cause is at the upper rpm'*/higher boost on the blowzilla, it burps SC oil out and cooks it off.

Anyone got a link to that vid? Same effect. Cooled down between runs.
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Old 01-06-2007, 03:15 AM   #30
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Hey, I noticed that same puff coming from my exhaust in a couple of those Woodburn vids.
I even saw Shadd puff on the shift.
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