Re: Throttle sticking on 1929 640

Posted by Tim Cole On 2020/1/19 21:18:55

The throttle cross shaft uses two cheap aluminum bosses on the firewall that wear and inhibit proper action. Sometimes the rivet pins loosen as well and the thing develops slop.

The correct throttle spring is anchored to the driver's side floor board where there is a cast tang.

Added springs are an attempt to fix this problem.

I had the same problem with Billy Hirsch's car and it had under 25,000 miles on it. In that case he went crazy with chrome plating and the parts didn't go back together correctly because the original fit went out the window.