258 Wont restart

[mustangduane]

Help! I just picked up a 79 CJ5 with an I6 AMC 258 i6 / 4.2l , it seems to start fine cold, but once it has run for a couple minutes it will not restart!
Any thoughts?
Carb rebuild/replacement needed?

Thanks everyone!
Duane

 

[Old Dog]

Is the choke stuck closed?

 

[mustangduane]

Thats a good question! How can I check?

 

[MDJEEPER]

Thats a good question! How can I check?

Just look at the top of the carb. The choke is the metal plate. If it's laying down over the top of the carb horn, then your choke is engaged. Now, if your engine is warm, the choke plate should be standing up (approx. 90 degrees) relative to the top of the carb.

 

[mustangduane]

OK makes sense, used to Holly 4150 on SBFs without any chokes.
I will check it tomorrow!

 

[mustangduane]

OK, Choke is definitely stuck on. How do I fix it? Looks like an electric choke, and seems to be an electrical connection missing. How should it be wired? Can I swap to a manual choke?
Thanks!
Duane

 

[Old Dog]

OK, Choke is definitely stuck on. How do I fix it? Looks like an electric choke, and seems to be an electrical connection missing. How should it be wired? Can I swap to a manual choke?
Thanks!
Duane

It should have a 12 volt wire hooked to it that comes on when the key is in the run pos.
You should be able to convert it to man. with a kit.

 

[mustangduane]

I just picked up a munual choke conversion at NAPA, going to set it up tonight

 

[mustangduane]

Manual Choke kit did the trick! Re-starts now without any problem

 

[MDJEEPER]

Manual Choke kit did the trick! Re-starts now without any problem

Excellent!