Overheating Issues, Perplexed

[elmariachi]

Originally Posted by Jerry Clayton

--i have been able to get a steady idle at around 850rpm on most engines and that is low enough that the mech advance hasn't kicked in and the engine will shut off without dieseling---most times also the idle mixture screws will be at 1 1/4 turns to as little as 7/8--never had to go past 1 1/2

Jerry, would the fact that I am at sea level in Houston have any effect on mixture? I can run it at 1 to 1 and 1/4 turns out on the primaries, but it likes 1.5-2 a lot better and the plugs look better as well.

Originally Posted by Jerry Clayton

We also take the feed wire for the fan directly to the alternator like you except we do use a relay to turn the fan on and off-

I noticed going back and reading all this thread that initially with the pic of your radiator that you said it was a 3 core(post 12) and later a 2 core (post 68). Is it a 1 inch tube or a 1 1/4 tube and how many fins per inch???

Yes, I am using a relay as well, tied to a 180* thermo electric switch.

I just corrected that post #12, that should have been 2-row, thanks for catching that. The PRC I have is a 2-row radiator with 1" rows. As for fins-per-inch, there are 16 individual fins, or 8 "V"s in one inch. How does that compare?

Thanks for the help and advice.