Reply To: ’54 Fleetwin – wont run on low speed

[aquasonic]

With an overall length of 6 13/16″ it looks like your shock is expanded or broken. Another thing that happens in this situation, is that the top of the expanded shock mashes against the bottom of the bearing carrier/upper seal housing. The bronze bushing will be flanged from the rotation and friction/heat.

With a good cleaning inside the shock, and the help of a high intensity flashlight, sometimes you can actually see a break in the internal spring. In some cases, the spring is just expanded, but not broken, and can be pressed back to 6 11/16″. Broken shocks can be pressed and welded, but I’ll leave it up to others to explain that.

It is possible that your idling issue never was a carburetor problem, and was a shock problem all along.

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