79 Jeep J10 tech question

[mikecetj]

My truck started running pretty rough and stumbling so i took a peek under the hood, found vacuum leaks. I replaced 90% of the vacuum lines, the fuel lines, fuel filter, air filter, accelerator pump (which was worn out) and tested the vacuum ported switch with a shot of gum cutter. There are currently no leaks in the vacuum system yet it still stumbles. I still have the original motorcraft 2 barrel and it is a bone stock rebuild with factory specs.

any advice for what else to check?:?|

 

[VeeDubb]

Does it have a miss? Has it been running like this since the rebuild, or has it run fine after the rebuild?

 

[Northman111]

Which engine do you have?? Six or eight. Either way sounds like you sucked up some gunk in the carb. ( Fuel side )

 

[jaber]

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Check out this site. We are Full Size Jeeps only and you can find all you need there. I have the same user name over there and hope to see you....

You might check the shaft on the butterflies to see if its worn out.

 

[ka041a]

grab the carb and twist and wiggle it to see if it is loose from the manifold. also, one time i had the pcv hose burned through on the bottom side where i couldn't see or feel or hear it and i only found it when i tore the intake off. good luck, john

 

[carnuck]

Timing too far retarded or fuel too old will cause this (bad vacuum advance too)