Anti-Chatter Rods in a 32??

Are these neccesary to run? (Specifically in a 32 with a flathead.) Is it just with the stock K-member mounted early trans with closed driveline?

Do I need them with a T-5 and open driveline?

What are their purpose in life? I know, to stop chatter... but what causes the chatter in the first place?

School me.

Neal

 

The early mounts did not adequately resist fore and aft engine movement when the clutch pedal was depressed, and torque tube push added in more movement as the car got underway. so engine movement gave erratic clutch engagement.
'32 rods would be easy to make, and I think someone posted repros in the cl***ifieds. Hurst anti-chatter brackets used in engine swapped early Ford would be absurdly easy to make. I can give you dimensions, but do not know if they actually did the job.
There are also other ways to do the job--rods running forward as on '39 Merc, an upper bracket to put the donut mounts in double shear.

 

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The early mounts did not adequately resist fore and aft engine movement when the clutch pedal was depressed, and torque tube push added in more movement as the car got underway. so engine movement gave erratic clutch engagement.


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So is this really not an issue if I am using later truck water pumps/motor mounts attached to the frame rails rather than the original front crossmeber mount? Along with open drive line?

Neal

 

The truck mounts are fundamentally the same as '32 mounts--only one washer or some such is different. This type of mount can tilt under a hard push.
Lack of a torque tube removes one source of movement. Step on your clutch and see what happens.
Ford cured the problem and dropped the rods in '42-48 models by desining the rear mount to resist movement. Until the rubber sheared away from the steel, and you bought the JC Whitney anti-chatter device.

 

Thanks for the schoolin', Bruce.

I will check it out.

Neal

 

I'd bet that the modern trans mount would prevent the for and aft movement.

As Bruce said Hurst style front mount angle brackets can be easily added if the problem pops up.

FWIW I don't run them in the coupe with an 8CM and have no problems. The Roadster with a Chevy, (no Hurst brackets) likes to chatter some. It can be embar***ing when cruising the fair ground traffic jambs but no real problem in normal driving.

If you want pictures of the Hurst anti chatter "L" brackets, let me know.