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Is this sound knocking/pinging or something else?


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The rattling sound starts at 1, 3 and 6 seconds into the video.

 

I've been all over the car checking to make sure nothing is loose.  I only hear the sound under hard acceleration.

 

Specs are below.

72 510

L18

5spd Z trans

32/36 Weber

 

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11 minutes ago, CS310 said:

The rattling sound starts at 1, 3 and 6 seconds into the video.

 

I've been all over the car checking to make sure nothing is loose.  I only hear the sound under hard acceleration.

 

Specs are below.

72 510

L18

5spd Z trans

32/36 Weber

 

 

Does it happen at low rpms as your getting on the throttle? 

What about if your up in the rpm range already and give it full throttle?

 

There is also something called lugging..

Internet definition....

 

Screenshot-20200420-135802-Chrome.jpg

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Mike: I had previously checked around the exhaust for any signs of rubbing and I couldn't find any, specifically around the rear cross-member.  The entire exhaust system is firmly mounted.  It doesn't move at all when you push on it.  Not sure if that's a good thing.  I'll check the exhaust system again to confirm.

 

 

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