Owen, thanks for the advice. I can say that the convertor does not leak any propane when the engine is not running, nor when it is running. I checked it with soap. It does leak off a quanity of propane if the engine is cranked and does not fire. After a few seconds of failing to start the fuel leaks out of the hole in the convertor's metal plate. I get where your coming from if the fuel is exiting out of the overflow prior to the outlet, maybe it's coming out because it can't get past the inside of the convertor due to some lack of vacuum not made by the cranking that is different than operation vacuum. Maybe acceleration demand changes the vacuum and eliminates the fuel out the bypass and I didn't see or smell it? I had to work and haven't had a chance to get back to my lift.
I'm going to check the choke possibility first. Something about Frank's idea that some carb spray should have made the engine pick up RPM's repeats my limited past mechanical experience. The fact that it did not, makes me feel that there may be a carb or choke issue. I am certainly not dismissing the vaporizor ( Convertor? )as the culprit. If it must supply some given pressure to that diaphram device on the side of the carb that it is not allowing, it could surely be my problem. But at this second my brain is stuck on the no increased RPM's from additional fuel in the air supply.
I did have the diaphram out of the Convertor. It had some debris, maybe fine rust or decomposed rubber. There are some alligator cracks inside, but no penetrations. The metal cover is stamped J&S, I think, if memory serves. It said .13 inches of water column among other things, I think. It's been a week since I read the thing.My plan is to check out the carb if that dead ends, I'll call Allegheny Clark Lift and see if they sell over haul kits for the Convertor. I've been looking on line for a service book, haven't found one yet. thanks for the info. Rich
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