Motor Quits after 45min
09-29-2002, 08:48 PM
#1
Registered
Thread Starter
Join Date: May 2001
Location: St. Joseph, MI
Posts: 357
Likes: 0
Received 0 Likes
on
0 Posts
Motor Quits after 45min
A friend has a 351 ford, after a 45min. cruise the engine quits. He has to wait 45min then it will restart. We have checked the fuel and compression, he has not checked spark. Has anyone had an experience with this type of problems ? I would rather not use the shotgun approach. I am leaning towards the coil ? Thanks
09-29-2002, 08:56 PM
#2
You really need to check for spark or ignition trouble next time it dies. If it cranks over it is either no fuel or spark. Coils can quit and start working when they cool off. Is this a carb motor or EFI? Need more info or it is pretty much shooting in the dark. 
09-29-2002, 10:52 PM
#5
Charter Member #1171
Charter Member
I would check coil, condensor, pick up coil in dist, also for vapor lock, but , vapor lock would present more clues then just quiting I would think.
__________________
I want to live in a world where a chicken can cross the road and not have its motives questioned.
I want to live in a world where a chicken can cross the road and not have its motives questioned.
09-30-2002, 07:50 PM
#7
I had a friend that had the same problem several years ago. He had a twin engine application, the one engine kept quiting on him. He'd go out and after about 30-45 minutes the one engine would quit. Come to find out it was the coil---he replaced it---no problems.
10-01-2002, 11:26 AM
#8
Registered
Join Date: Dec 2001
Location: Rapid City SD
Posts: 809
Likes: 0
Received 0 Likes
on
0 Posts
I had the same problem a few years ago and it was the pickup coil in the dist. I have had coils do that same thing in my race days. I had vapor lock problems last year and that usually shows up after you stop for a little while and the motor gets the heat soak thing going.....it gets hot, vapor locks and won't start.
Check for spark. Just carry a spare spark plug to test with, that makes it really easy. More info needed!
Check for spark. Just carry a spare spark plug to test with, that makes it really easy. More info needed!
10-02-2002, 03:51 PM
#10
Charter Member #601
Charter Member
Had a condensor short out when it got hot.. on a dirt bike once.. when it cooled down.. it would run..
Points type dist?? Is there a condensor on the coil .. just thinking out load.
good luck
Dick
Points type dist?? Is there a condensor on the coil .. just thinking out load.
good luck
Dick
