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Can vaccum advance cause overheat?

  • Thread starter Thread starter prpony
  • Start date Start date Feb 15, 2007
P

prpony

New Member
Apr 4, 2005
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San Juan Puerto Rico
Feb 15, 2007
#1
  • Feb 15, 2007
  • #1
I have a 65 fastback 289 .40 bored over. I have a 3 core '67 radiator with a Taurus electric fan. This can does not go over 180 degrees in bumper to bumper traffic during a sunny 98 degree weather with A/C on. However when I get on the expressway and and run 65 mph @ 3000 RPM my car overheats to 230 degrees.

I've done everthing with no significant results. I noticed a ping hear and there and decided to change the vaccum advance. Walah.... No more ping and best of all no overheating!!

can this be?
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
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south louisiana
Feb 15, 2007
#2
  • Feb 15, 2007
  • #2
The lack of advance was resulting in the timing being retarded too much at speed. That will cause it to run warmer. 230 degrees isn't overheated though.
 
F

ForceFed70

That's why they call it "dope"
Founding Member
Dec 6, 1999
4,818
1
69
BC Canada
Feb 16, 2007
#3
  • Feb 16, 2007
  • #3
D.Hearne said:
The lack of advance was resulting in the timing being retarded too much at speed. That will cause it to run warmer. 230 degrees isn't overheated though.
Click to expand...

What he said.


Timing problems can cause overheating. Also, overheating at speed can be a sign of poor coolant flow which could be caused by a blockage, colapsing hose, etc.
 
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