Hard starting after warmed up - Page 2 - JeepForum.com
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post #16 of 20 Old 06-15-2021, 09:53 PM
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1977 CJ5 
Join Date: Dec 2015
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What's the fuel pressure supposed to be?

Exactly what is it? No guessing. what does the fuel pressure actually say?

Just for giggles dump 2 teaspoons of gas down the carb and attempt to start----What does it do exactly? Does it try?

Voltage? Key On, what is the positive coil voltage?

While actually cranking what is the voltage at positive coil

What I'm getting at is, Is "I" terminal on the solenoid providing that needed "BOOST" to the coil while cranking?

What's the answers to my questions?


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post #17 of 20 Old 06-15-2021, 10:17 PM
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1977 CJ7 
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Originally Posted by Renegade82 View Post
Bagus - Yes the filter has the return outlet at high noon.

ctorj - I was told to try just tapping the pedal before starting but that doesn't seem to help. I haven't tried giving it a good shot with half pedal but I will try it next time. But it doesn't seem to be a "summer time" only issue. It started in late winter.
Don't stab the pedal. You slowly go down to try not to squirt the accelerator pump. Try not to add more fuel to the engine when you restart it on a hot shut down.
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post #18 of 20 Old 06-16-2021, 02:15 AM
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Originally Posted by ctorj View Post
I take it that with your engine bay you still have the factory return line hooked up to the filter. If it is you are not getting vapor lock. Your carb is getting too hot and boiling the fuel which then runs into the intake. I am sorry I cant tell you a fix because I am still trying to find a fix for my jeep in the summer time. If you slowly push the throttle to 50% and it starts up way faster then I am right of the fuel boiling out and through the venturis.
If you find a fix let us know. My poor 25 year old starter is having the time of its life.
Cut a hole in the bonnet above the carb, put a scoop one the top of the carb so that it sticks out through the bonnet, and Bob's your uncle.

Eh, voila

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post #19 of 20 Old 06-16-2021, 06:48 AM
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If the hole in the bonnet route isn't your cup of tea..

Detach your bonnet at one hinge.
Run stud nuts onto the hinge studs.
Run short studs into the stud nuts.
Fasten your bonnet up again.

Repeat at the other side.

The trick lowers engine room temps at slow and no speeds.

I've never tried it with a GC, so it may be a little more complicated than my simple instructions.

Last edited by Delta0; 06-16-2021 at 11:59 AM.
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post #20 of 20 Old 06-17-2021, 12:47 PM
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