As part of the installation of the Scalded Dog manifold and Stromberg 97 Carb my friend Austen at Ozcraft made the throttle link you can see in the pictures above from Charlie Yapp’s plan. The link bolts to the manifold, but had a habit of coming loose and if tightened too much the throttle action would be very stiff. So, the link was drilled out a bush added along with a locknut behind the link. This allows the link to turn freely meaning the action was far more acceptable.
Tag: Throttle Action
Making an Adjustable Throttle Return Spring for the 1929 Model A Ford Sport Coupe
After the conversion to the Scalded Dog inlet manifold and Stromberg 97 carb there has been some slight throttle sticking issues. The majority of the issue had been cured by the snap shut device provided by Stromberg
Despite this the throttle still occasionally sticks a little due to the nature of the linkage.
A spring was needed and not one that was too heavy which would add to an already fairly stiff throttle action.
I couldn’t really find what I wanted so I decided to create something out of some small springs that I already had, plus an electrical connector to allow for some adjustment once fitted.
This worked out well and I was able to adjust the tension after fitting. You’ll notice the use of some heat shrink tube to make things look tidy.
So far so good!