HELP! TO-20 Quits When Hot!

I'm one step ahead of ya'!

I replaced the condenser yesterday- and today, I got a peice of rubber fuel line with which to insulate to fuel line....as it is precariously close to Mr. exhaust manifold. We'll see how she goes the next time I work her! If that don't work....next step will be jumping around the ignitione' switch...and then replace the coil (It's a 12V coil with the built in resistor)

James UK- What you say rings true- I had ruled out head trouble, as, like you say, I wasn't losing any coolant- but now I know that that could be a possibility!

Thanks, all.

Keep the advice coming!

You might want to check to make sure the fuel line to the carb is not too close to the exhaust manifold. Boiling gas in the line will do something similar.

It too was fine when cold. The problem was eventually traced to a single cylinder head stud - some kind person had 'encouraged' a metric nut onto an AF thread - the nut and stud threads had both stripped, and the head was therefore not properly torqued down on this one stud.

That was sufficient to cause exactly what you have described. Cold it would start really easily, but was a pig when hot. Leaving it to cool down got you a bit further, then it would start to play up again. 12 miles of travel could take a long, long time.

There was no sign of boiling, or lost water that I could tell. It would just quit.

HTH