[Gmecm] Getting rid of False Knock?

[David Haggard]

Hate to bring up the possibility, but even if it's a new motor, from this latest post there's the chance of a loose piston or rod bearing. Not loose enough for you to hear, but the knock sensor sure could.

 

David Haggard

   '88 Formula Firebird "SR-71 Black 'Bird"

 

 

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From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On Behalf Of Sixpakmak15 at aol.com
Sent: Tuesday, March 22, 2005 10:32 PM
To: gmecm at diy-efi.org
Subject: Re: [Gmecm] Getting rid of False Knock?

 

They're hydraulic roller set 3/4 from 0 Lash... however... I just noticed there is no Knock when the car is idling... It starts to climb slowly when I accelerate slow... and the faster I accelerate, the faster the knock number goes up... If I put the car in Nuetral and rev to 3000, it will count a few thousand knocks... So, If I time myself for one minute... while I hold the rpm at a constant 3000... I should be able to take the number of knock counts durring the run, i.e. 50,000.. and turn that into the sum of an equation for either the number of compession stokes or rocker movement durring that period of time and rpm?

3000   = 750      (750) 60sec = 45,000 compresion stokes and or knock counts

    4strokes

or 

3000   = 1500    (1500) 60sec = 90,000 rocker movements and or knock counts

    2 "cam timing" 


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