Re: 37, 120 carb percolation problems

Posted by rvsls On 2012/8/1 11:08:20

Thank you for all your suggestions. I will try to respond to them:
1- The carb is a Stromberg EE14
2- yes, there is a spacer/insulator under the carb
3- yes, the heat riser is open. The shaft turns freely and I can hear the flapper hit the open and closed positions. There is no spring or weight but when the engine is accelerated, the shaft turns counterclockwise when viewing from the back of the engine. So, I am pretty sure it is in the open position.
4- I recently rebuilt the carb but obviously did not replace the main jet air bleeds. So, this could be the problem and I will pursue this lead.
5- As to running rich, I do not think so. Neither the plugs or the exhaust show excessive soot or carbon.

I am also going to try to lower the float level.

Thanks for the advise, anybody else have any thoughts?

Rod