**302 dies when hot** Fuel is boiling in carb
I'm new to the forum, and have recently purchased a 72 Convertible with the Mach 1 Package. Fun car, but we're still getting to know each other. What I know now is that she doesn't like the desert! Originally thought I had an electrical issue, but now I'm really stumped! This is driving me nuts!
Runs like a champ when cool. After it's hot, it will rev, and idle OK, but when you put a load on it, it just dies. Heres what Ive done since the problem began, and what I am observing:
New carb (already had, so put it on
Hard metal fuel supply lines (at carb)
New coil (Mallory resistor coil)
New electronic distributor internals (Mallory)
The fuel bowls are full
Timing at 12 btdc
The fuel filter is nice and full when cold, but as temps rise, fuel filter drains to near empty, and I can see irregular spurts of fuel every few seconds into the near empty filter. However, bowls are full, so fuel starvation should not be a problem, correct? Or, could pump cavitation cause an issue, even with full fuel bowls?
Once engine reaches max temps, at idle, if I try to hit the accelerator, it just dies.
I have a Carter fuel pump with about 2k miles from another project, which I could try. I also have recently rebuilt the old Holley 1850/600, which I could swap, but somehow I don't think that's the issue. I was having this problem with the old carb before rebuilding it.
Thanks to all for looking!
1972 Mustang Covertible 302 w/ Mach 1 Package
Last edited by Vegas72; 07-27-2010 at 09:43 PM.
Reason: Change title.