Squeal at high rpm

shawnberry45 · 11-02-2019, 05:16 PM

Having some issues with a loud screetch at 6k
I have Green belt, new belt tensioner, TBatt mod. Everything below 6k is quiet as a mouse.... any tips for things I can look for?

SouthArk370Z · 11-02-2019, 05:53 PM

Look for "glazing" of the belt and pulleys.

vtec to vvel · 11-02-2019, 07:23 PM

Quote:

Originally Posted by SouthArk370Z

Look for "glazing" of the belt and pulleys.

Check the FSM in his sig if you (OP) have any questions.

shawnberry45 · 11-02-2019, 07:42 PM

Would that be from too tight if a belt? The tension on the belt looks pretty good

SouthArk370Z · 11-02-2019, 08:14 PM

In my experience, shiny spots are caused by slipping, which can be caused by a loose fit, belt past it's useful life (the rubber gets hard), oil on the belt, etc.

shawnberry45 · 11-10-2019, 04:54 AM

Turned out to be a loose blower belt. Got it super tight and no more squeal!

11-02-2019, 05:16 PM	#1 (permalink)
shawnberry45 Base Member Join Date: Jul 2012 Location: Chicago, IL Posts: 65 Drives: G37 Rep Power: 13	Squeal at high rpm Having some issues with a loud screetch at 6k I have Green belt, new belt tensioner, TBatt mod. Everything below 6k is quiet as a mouse.... any tips for things I can look for?

11-02-2019, 05:53 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Look for "glazing" of the belt and pulleys. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

11-02-2019, 08:14 PM	#5 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	In my experience, shiny spots are caused by slipping, which can be caused by a loose fit, belt past it's useful life (the rubber gets hard), oil on the belt, etc. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

11-10-2019, 04:54 AM	#6 (permalink)
shawnberry45 Base Member Join Date: Jul 2012 Location: Chicago, IL Posts: 65 Drives: G37 Rep Power: 13	Turned out to be a loose blower belt. Got it super tight and no more squeal! TBatt likes this.

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11-02-2019, 07:42 PM	#4 (permalink)
shawnberry45 Base Member Join Date: Jul 2012 Location: Chicago, IL Posts: 65 Drives: G37 Rep Power: 13	Would that be from too tight if a belt? The tension on the belt looks pretty good