CRG Discussion Forum

Camaro Research Group Discussion => Restoration => Topic started by: snips on December 28, 2010, 02:17:42 AM

Title: cocktail shaker restoration
Post by: snips on December 28, 2010, 02:17:42 AM: The front cocktail shakers that I have for my 69 are missing the lower mounting legs due to rust. Has anyone seen replacement mounts out there?
Title: Re: cocktail shaker restoration
Post by: cadmanof50s on December 28, 2010, 05:47:36 PM: I have seen replacement units. I have never seen replacement parts...if such exists, they would have to be welded.
These shakers contain hydraulic fluid inside..and I am not sure what welding heat will do to the inside.
I would be concerned about heating up a closed unit ..especially to the temperatures that are needed for welding.
I would definitely open the top and drain them, and keep them open while welding.

(They are technically called Ballasts..I assume you have a convertible?)

Vic
Title: Re: cocktail shaker restoration
Post by: snips on December 29, 2010, 01:21:47 AM: I saw a listing on e-bay the other day for two front units both had rotted legs, but he had metal templates that needed to be bent and welded that went with them. If I could locate a set of good ones I could template the legs and fabricate replacements. Its amazing how only the lower leg rotted off and the rest looks great. Thanks for the reply.
Title: Re: cocktail shaker restoration
Post by: cadmanof50s on December 29, 2010, 01:30:53 AM: I'm redoing my car this winter and front and rear balasts are out of the car. What do you need exactly for a template?
Measurements, picture?
Let me know.

(BTW, mine is a '68..I am assuming they would be the same...????)

Vic
Title: Re: cocktail shaker restoration
Post by: KevinW on December 29, 2010, 02:47:05 PM: Sorry, 68s are different from 69s due to fender and qtr differences.
Title: Re: cocktail shaker restoration
Post by: JohnZ on December 29, 2010, 06:12:43 PM: Quote from: vicbrincat on December 28, 2010, 05:47:36 PM
(They are technically called Ballasts..

Actually, they're called "Dampener Assy".
Title: Re: cocktail shaker restoration
Post by: L78 steve on January 21, 2011, 03:47:43 AM: What are their purpose?
Title: Re: cocktail shaker restoration
Post by: JohnZ on January 21, 2011, 10:36:08 PM: Quote from: L78 steve on January 21, 2011, 03:47:43 AM
What are their purpose?

To dampen the torsional vibrations in the convertible body structure (commonly called "cowl shake") that result from lack of a roof structure. Corvair convertibles had them too.
Title: Re: cocktail shaker restoration
Post by: L78 steve on January 24, 2011, 12:38:02 AM: I take it when the car hits a bump they become functional?
Title: Re: cocktail shaker restoration
Post by: JohnZ on January 24, 2011, 04:22:08 PM: Quote from: L78 steve on January 24, 2011, 12:38:02 AM
I take it when the car hits a bump they become functional?

Yes. They contain a cast iron weight on a shaft with springs on both sides, and are filled with ATF; the spring rate and orifices in the iron weight are "tuned" to dampen specific vibration frequencies, depending on the model and damper location.