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Old 10-11-2020, 08:32 PM
694.1 694.1 is offline
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Default Difficult to ID Dampener. '57 with Air?

Picked this up in the spring. Does not appear to be a '56 from the photos I have seen. In '58, they went to the more modern style.
It came off a '57 but the car did not have air, maybe a transplant?
The belt grooves are fore & aft with a space between them like a regular air pulley...
Anyone know?
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  #2  
Old 10-11-2020, 08:48 PM
tom s tom s is offline
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I would say yes.I own single and dual grove like it.That is the first 3 groove I have seen.FYI,that should be sent to Damper Doctor to rebuild it.It has springs and cams in it to dampen harmonics and even NOS ones after this many years wont work properly.The reason they changed styles.Tom

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Old 10-21-2020, 06:42 PM
694.1 694.1 is offline
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Still scratching my head over this one. It is NOT a 3 groove, that is a space in the middle.
I have heard of Dampener Dr but this one is for resale...

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"At no time did we exceed 175 mph.”
Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea...

Still have my 1st Firebird
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Old 10-21-2020, 08:49 PM
tom s tom s is offline
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Can you post a pic looking straight into the grooves so I can see the shape of the center?Tom

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Old 10-22-2020, 10:18 PM
694.1 694.1 is offline
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Note that the inside grove is 1/2 & the outside groove is 3/8.

PS, I see this style of dampener was carried over from the Straight Eights, I would love to see a photo of the guts just to see what is going on in there.
No doubt they were costly to produce as compared to a simple rubber style!
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"At no time did we exceed 175 mph.”
Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea...

Still have my 1st Firebird
7th Firebird
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  #6  
Old 02-25-2021, 09:17 PM
694.1 694.1 is offline
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It is a Tri Power pulley

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Still have my 1st Firebird
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