01-01-2018, 01:32 PM
Many thanks for your replies and a happy new year to you all.
Your diagnosis is as usual spot on.
Fuelling has been an issue. The 22FZ carb on the car will not idle at slow speed and therefore starting is also an issue.
I have cleaned all the jets and the spindle is in good condition and the float level is correct. I have swapped the carb for a 24t2 and the idle is perfect, thus eliminating a leak in the manifold.
My only observation is that the 22FZ slow running assembly has been gripped with pliers to get the two halves apart and now may not be making good contact with the carb body. I will try machining and sleeving to get this back to perfect.
All this said, this is a mag engine so a certain speed is required to generate a spark. The engine has been fully rebuilt with a rebore and wedged head, so compression is very good. Compression now occurs at 12 and 6 c'clock which appears to be the worst position for getting any real power on the handle.
At what positions do your compression occur on the handle.
Many thanks.
Adrian.
Your diagnosis is as usual spot on.
Fuelling has been an issue. The 22FZ carb on the car will not idle at slow speed and therefore starting is also an issue.
I have cleaned all the jets and the spindle is in good condition and the float level is correct. I have swapped the carb for a 24t2 and the idle is perfect, thus eliminating a leak in the manifold.
My only observation is that the 22FZ slow running assembly has been gripped with pliers to get the two halves apart and now may not be making good contact with the carb body. I will try machining and sleeving to get this back to perfect.
All this said, this is a mag engine so a certain speed is required to generate a spark. The engine has been fully rebuilt with a rebore and wedged head, so compression is very good. Compression now occurs at 12 and 6 c'clock which appears to be the worst position for getting any real power on the handle.
At what positions do your compression occur on the handle.
Many thanks.
Adrian.