Port engine squeal

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06-08-2012 | 08:10 AM

#11

mike tkach

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Joined: Oct 2007

Posts: 8,439

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From: yorkville,il

paul,you said it was doing it before the valve springs were replaced,but it sounds like maybe one of the rocker arms is rubbing against a valve cover.i would remove the valve covers and look for any marks from rubbing.usually two rocker arms on each side are clearanced ,if they did not get put back in the right place,they will rub,as rookie mentioned,if you loosen the valve cover bolts,and the sound changes,you have found the problem.

06-08-2012 | 09:50 AM

#12

spyderconv1999

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Joined: Sep 2009

Posts: 271

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From: ohio

what does it do at higher RPMs? get louder? faster? stop?

06-08-2012 | 09:53 AM

#13

jbones98

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Joined: Dec 2009

Posts: 29

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From: orange county, ca

and fuel pump i have heard fuel pumps make that noise

06-08-2012 | 03:31 PM

#14

Rookie

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Joined: Jan 2003

Posts: 6,019

Likes: 1,521

From: Grand Rapids, MI

Quote:

Originally Posted by Rookie

Do not know if your valve covers need the clearanced rocker. But it sounds like mine did when I put my new rockers on and just didn't clear enough material on the corner. I loosened the valve cover bolts and I could see it move as the rocker went up and down.

Rockers on cylinders #1 and #8 intake need to be ground.