Re: Specific treadle-vac problem

Posted by HH56 On 2013/6/16 11:53:19

One thing worth looking at in both cases is the amount of vacuum available. Make sure nothing is disconnected or leaking at a connection, no pinholes in the reservoir and verify the condition of the check valve at base of carb where the vacuum source connects. The valve sealing pieces could be stuck closed or even rusted away providing no vacuum or an insufficient supply..

If you run the engine and then turn it off, is there vacuum in the system for a length of time or does it disappear as soon as the engine quits. If vacuum is good then it gets more involved as to deteriorated or gummed up components in the power section or hydraulic issues.