[DeTomaso] Question on Throttle Cable /Springs on Carb

[MikeLDrew at aol.com]

In a message dated 8/11/09 14 12 53, claywillmott at hotmail.com writes:


> 
> I switched to a smaller carburetor and my previous carburetor had a 
> throttle cable inside a spring.  By this I mean there is no separate safety 
> spring but the throttle cable in the spring assembly pushes back towards the 
> rear of the car at rest.
> 
> On the directions and other Panteras I have seen the cable to the carb is 
> a simple cable and they have an apparatus or method of making/converting a 
> safety spring.
> 
> Does anyone know if the Pantera is suppossed to have only this cable 
> inside a spring and no other springs?
> If not does anyone have an easy fix or pics?
> 
> I removed an 800 cfm Holley 4150 series and put on a new Edelbrock 650cfm.
> 

The original setup used a standard cable, and a single external spring.   
This isn't particularly safe.   Track tech rules call for two springs.   The 
aftermarket cables have an integral return spring.

Any auto parts store will carry a normal double-throttle spring setup, with 
one spring nested inside the other.   The solution is to abandon one of 
those springs, and just run a single spring between the linkage and the intake, 
and the spring on the cable, for a total of two.   Works great, lasts long 
time.

What you don't want is super-stiff throttle springs that make it difficult 
to modulate the power.

Mike