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Re: Accelerator Pedal Spring for 1929, model 640
Just popping in
Joined:
2015/7/23 19:12
From Excelsior, MN
Posts: 5
We have tested a large number of springs for this application and found that Lee Spring LE 069G 07 S is the best.
Its specifications in inches are:
OD= 0.75"
Wire Diameter+ 0.069"
Max Load (lb) = 13.7445
Spring rate constant (lb/in)= 2.27
Max. Extended Length = 9.46"
Initial Tension (lb)= 1.3328
Free Length= 4"
Material = Stainless steel
Loop Inside Dia 0.612
Body Length = 2.776"
Total Coils 39.5
Price= $14.07 each
Hope this is useful to other owners.
Thanks,
Lou Cosentino

Attach file:


pdf Spec Sheet.pdf Size: 828.35 KB; Hits: 5

Posted on: 3/8 11:56:05
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Accelerator Pedal Spring for 1929, model 640
Just popping in
Joined:
2015/7/23 19:12
From Excelsior, MN
Posts: 5
We continue to work on sticking throttle issue on a 640.
Found that the accelerator pedal spring 116325 has been replaced with an inadequate part and a second spring added on the vacuum tank side. Does anyone know the specifications for the correct accelerator pedal spring? We are finding length ?? (4"),Coil 0.5-.075" diameter, Wire size roughly .060", extended length?? Minimum load ??( 1-2#), Rate ?? (1.7-3) lbs/inch.
Material ?? (Stainless or Music wire) , Ends hook.
Any help would be appreciated.
Thanks
Lou

Posted on: 2/20 13:06:11
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Re: Throttle sticking on 1929 640
Just popping in
Joined:
2015/7/23 19:12
From Excelsior, MN
Posts: 5
Thanks for the reply. You are correct this spring was added as a poor fix for the problem. I am attaching photos of the accelerator spring and a linkage from it down to the base of the steering wheel.This linkage is very loose and probably shot. What is it for? This seems to be part of the problem.
We cleaned and lubed the throttle shaft but it still hangs up.
What are the three screws on the carb. One seems to be an idle stop , not sure what the others are. The range of motion from slow to fast idle on the lever of the steering wheel seems to be no change halfway up then quickly rises to very fast. Is their a way to broaden the range? Looks like removal and cleaning of entire linkage and bushing replacement will be needed. Do any drawings of these linkages with part #'s exist. ? Thanks,
Lou

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Posted on: 1/25 13:14:05
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Re: Throttle sticking on 1929 640
Just popping in
Joined:
2015/7/23 19:12
From Excelsior, MN
Posts: 5
Thanks for the replies.
Do I understand correctly that there should be no spring?
See attached photos.
Thanks,
Lou

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Posted on: 1/20 6:43:24
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Throttle sticking on 1929 640
Just popping in
Joined:
2015/7/23 19:12
From Excelsior, MN
Posts: 5
Debugging a 1929 640 Roadster.
Throttle does not return to idle and sticks at high speed.
Appears the 10" spring from the Carb throttle shaft to the car frame is not strong enough to return shaft to idle position. Does anyone know what the specifications for this spring are? #'s of force , material, Packard part #.
Any help would be appreciated.
Thanks,
Lou

Posted on: 1/19 14:07:05
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