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Dash pot purpose and function

Started by Corey Bowcutt, February 21, 2022, 01:26:46 PM

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Corey Bowcutt

Well that looks very different from my setup. I wish I could post a picture

shelbymann1970

Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)

Corey Bowcutt

Hard to tell for sure but that looks a whole lot more like what I have.

Corey

shelbymann1970

Quote from: Corey Bowcutt on February 22, 2022, 02:44:29 PM
Hard to tell for sure but that looks a whole lot more like what I have.

Corey
I wish I had a better pic. All I could find so far. I'm sure I got some at home for ref but they are at home and I am not. Gary
Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)

Corey Bowcutt


Royce Peterson

#20
The dash pot is the same. The bracket for the dash pot is different.

This is a 735 CFM carb but the dash pot mount is similar to yours.


Quote from: gt350bp on February 22, 2022, 01:49:48 PM
NPD lists a dashpot for 428 CJ w/ 735 cfm and automatic. I trust it is different or they would have listed for GT 350 also. Might work in a pinch?

Don
gt350bp
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

Royce Peterson

The picture of the car shows an Autolite dash pot. My picture shows a Holley.
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

shelbymann1970

Quote from: Royce Peterson on February 22, 2022, 04:11:28 PM
The picture of the car shows an Autolite dash pot. My picture shows a Holley.
Thanks Royce. I posted a Holley originally and he said it didn't look like his Royce so I posted the other photo. This is my first photo. Can't upload. Full... https://www.flickr.com/photos/shelbymann1970/51896737332/in/dateposted-public/
Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)

Bob Gaines

The 68 Holley dashpot bracket is different then the 69 version.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

Corey Bowcutt

So is the one shown in the photo a 69?

Royce Peterson

This is a typical Autolite dash pot and bracket. I don't think any new ones are available.



1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

Bob Gaines

Quote from: Corey Bowcutt on February 22, 2022, 06:26:02 PM
So is the one shown in the photo a 69?
The one in reply #22 is of a 69 Holley. Of course 69/70 GT350 didn't come with a Holley from the factory . The GT500's did and that is what a automatic carb would look like.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

Bob Gaines

The 69 dashpot bracket sticks out too far on a 68 Holley throttle linkage and it has a eyelet for a kick down lever spring . 68's do not.  If your dashpot lines up with the throttle linkage then you have the correct one. The NPD sells the 69 type dashpot which will work but it should look like the one Royce posted.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

CharlesTurner

Charles Turner
MCA/SAAC Judge

Krelboyne

My findings also agree with Royce on the Autolite dashpot. They are clearly not the same as the Holley version. Holley has the plunger shaft going through the threaded portion. Autolite has it opposite of the threads.
Trying to add photos. Upload Folder is full?
Scott Behncke - Carchaeologist @ WCCC