S/C Belt Siezes Motor - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-04-2006, 04:45 PM   #1
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Default */C Belt Siezes Motor

I was driving around and noticed the car had no guts and didn't whine right before I got home. Poped the hood and looked, no */C belt. Looked all over for the damn thing. I shut the hood and all of a sudden the engine just stops. Pop the hood again and there it is tangled up around the pulleys. I start it up to see if the belt would come loose and after the PCM revves the engine up to just shy of 2K it came loose.

I was wondering if this "procedure" I used was bad on the engine. As if the locking up probably wasn't the best thing for it already. I didn't have any way to cut the belt loose so starting it up again was my only option.
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Old 02-04-2006, 05:04 PM   #2
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so then would it be feasible to just remove the supercharger pulley so that without boost youd save on gas? or is that a stupid idea?
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Old 02-04-2006, 05:20 PM   #3
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Quote:
Originally Posted by NERV
so then would it be feasible to just remove the supercharger pulley so that without boost youd save on gas? or is that a stupid idea?
you can remove the */C belt in the Series II engines....it hurts performance...there is no advantage to this
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Old 02-04-2006, 05:57 PM   #4
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Do you thing that the engine is damaged from getting locked up and then restarted?
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Old 02-04-2006, 06:47 PM   #5
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Quote:
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Quote:
Originally Posted by NERV
so then would it be feasible to just remove the supercharger pulley so that without boost youd save on gas? or is that a stupid idea?
you can remove the */C belt in the Series II engines....it hurts performance...there is no advantage to this
sorry about the thread hijacking just a quick question, obviously it would kill power but without boost would it be better on fuel economy and not need higher octane fuel? or would the presence of the supercharger mechanism not moving be a significant obstruciton to airflow?

sorry again, back on subject now, i doubt the seizing would do any damage to the engine, people stall out manual trans engine all the time, similar idea, just stalling from the other end of the crank
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Old 02-04-2006, 07:11 PM   #6
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Without the SC, the engine will be breathing through a hole the size of a quarter. It will also be PULLING some through the SC by spinning the rotors through sucton alone, as seen by a vid from Haro. Lotsa strain on the intake stroke.

What pulley was the belt wrapped around? It maybe could have damaged it.
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Old 02-04-2006, 09:20 PM   #7
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I agree with NERV. I couldn't be that much different than stalling a stick.
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Old 02-05-2006, 01:32 AM   #8
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Quote:
What pulley was the belt wrapped around? It maybe could have damaged it.
I think it was the biggest pulley on the accesories belt. Can't remember the name of it.
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Old 02-05-2006, 11:34 AM   #9
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The lowest sitting, biggest pulley is the harmonic balancer.

Tyipcally the place belts will get caught. Usually it won't hurt anything. Only real way to tell is look for any leaks or issues.
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Old 02-05-2006, 01:08 PM   #10
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The crank sensor and it'* wires are down there. Inspect them for damage.

Cranking the motor with a tangled belt COULD damage internal engine parts in much the same manner as hydrolocking.
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