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stoney 81ta 06-05-2007 08:42 AM

rattling noise after cam and intake swap
Hi all last week installed a cam kit and new edelbrock intake on my 305 Ta,after about 2 days i notice i got a rattle which sounds like its coming from the center of the dash right behind the distributor,the noise is worse from 0-100km.I will try to describe the rattle is like 2 peices of metal shaking together,checked all the ductwork under dash and face of dash and all is tight.Also the car has headers and duals.My idle is around 500 rpm and it sputtters like its starving for gas when the idle sputters so does the rattle sound,this only happens when the car is in drive in park its fine,The performance after the swap is great no hestitation on the throttle.Thanks all.

DoubleVision 06-05-2007 04:36 PM

This is a long shot stab, but worth looking into. There are rubber bump stops under the hood, the hood rides on these and after a while they get dry, When they do they squeak and make all kinda of noise, it`s just a piece of rubber on top of what appears to be a bolt. Coat them with vaseline or the like and see if the noise disappears. 500 rpm is a rather low idle, I`d think it needs to be at least 600 to 700 RPM.

poncho62 06-05-2007 04:38 PM

Sounds like detonation to me....................Is the timing set right?

pepi 06-05-2007 04:47 PM


Originally Posted by poncho62
Sounds like detonation to me....................Is the timing set right?

I do not think I can recall ever encountering detonation @ idle

docvette 06-05-2007 04:59 PM

Doc here, :pimp:

Could The Lifters Be slightly tapping A Baffle or other valve cover item , now with the Higher lift ? Just a thought... :confused:

Maybe your squirrel has learned Morse Code..and is planning escape from the running wheel !! :D Just a little humor..(I know..very little humor.. :drunk: :rolleyes: )

Doc :pimp:

stoney 81ta 06-06-2007 12:11 AM

thanks all for your inputs and Doc like the squirrel bit.

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