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  Topic Review (Newest First)
06-17-2021 12:47 PM
uptillnow
06-16-2021 06:48 AM
Delta0 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.
06-16-2021 02:15 AM
Delta0
Quote:
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

06-15-2021 10:17 PM
ctorj
Quote:
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.
06-15-2021 09:53 PM
JEEPFELLER 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?

-----JEEPFELLER
06-15-2021 05:42 PM
hp_lovecraft Looking at the picture, the fuel line is right next to the exhaust? When mine was similar, it was murder trying to start when hot. Either vapor locked or boil off. I think the later since when I looked into the throttle body, the intake was full of gas. The liquid flashing to gas made enough pressure to force fuel past the bowl, flooding the carb, and spilling into the intake.

So I rerouted the fuel line over the valve cover.... problem disappeared. It also fixed the problem that it was hard to start when it had been sitting more then a day.

Could also be a stuck choke. Mine would do that for a while. Choke would get stuck on, and foul the plugs while driving... and not want to start hot. I'd have to clean the plugs in the parking lot.
06-15-2021 09:05 AM
Renegade82 Double post. Doesn't let you delete posts anymore.
06-15-2021 09:04 AM
Renegade82 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.
06-14-2021 11:38 PM
ctorj
Quote:
Originally Posted by Renegade82 View Post
No, it turns over fine, it's an initial lack of combustion thing. This Jeeps got grounds upon grounds and then some. And the hei is wired using a relay so it's got full 12v all the time.
Hopefully I get a chance this weekend to look at the choke and check the timing. Seems to me it was at 10deg and I know Webers like it about 12deg. What voltage should be at the choke wire, is it a full 12 volts, does anyone know?

Delta0 - Do you mean at a cold start or when warm and it finally starts up?
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.
06-13-2021 07:17 PM
BagusJeep I would have said vapour lock as a possibility as well but your very neat engine bay has it correctly plumbed.

Is the filter correctly oriented? it is just out of sight in the pic.
06-13-2021 07:57 AM
Matt1981CJ7 Choke should have full battery voltage when the engine is running.

Matt
06-12-2021 09:38 AM
87MJTim Vapor lock. Fuel in the supply line vaporizes.
06-12-2021 08:27 AM
Renegade82 No, it turns over fine, it's an initial lack of combustion thing. This Jeeps got grounds upon grounds and then some. And the hei is wired using a relay so it's got full 12v all the time.
Hopefully I get a chance this weekend to look at the choke and check the timing. Seems to me it was at 10deg and I know Webers like it about 12deg. What voltage should be at the choke wire, is it a full 12 volts, does anyone know?

Delta0 - Do you mean at a cold start or when warm and it finally starts up?
06-11-2021 03:59 PM
258 I’m thinking a GROUND issue as well. A poor ground at starter will give you symptoms like that from over heating. Remove, clean ALL of your grounds well and retighten with dielectric grease.
06-11-2021 03:16 PM
pedal2themetai Hi, does it turn over good and just not start or does it turn over sluggish .. Check the voltage at the coil.. should be 9v runnig but 12v at (during) start up..
good luck
tim
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