1980 Jeep CJ7 Running issues

Tiny
PAPABEAR78
  • MEMBER
  • 1980 JEEP CJ7
  • 166,000 MILES
My Jeep will turn over but can't seem to keep it running. It has a new fuel pump, the carb. Is rebuilt, new distributor, cap, rotor, new plugs and wire.
I'm at a loss, like I said it will start but maybe only run for a minute if I'm lucky. If someone could please point me in the right direction.
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Thursday, July 18th, 2013 AT 10:41 AM

6 Replies

Tiny
FREEMBA
  • EXPERT
When the engine cuts off, quickly check to see if you still have a spark at one of the spark plug wires.
Also, (with the engine OFF) look into the throat of the carburetor, operate the throttle linkage by hand to see if you notice fuel being sparyed into the carb from ports inside of the "barrels "of the carburetor. If not, the problem is fuel related. You would then try priming the carb.
Does the choke on the carburetor work?

Please post the result/answers here for further assistance. Thanks.
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Thursday, July 18th, 2013 AT 1:15 PM
Tiny
PAPABEAR78
  • MEMBER
Got fuel, it has a spark but it's yellow and looks weak.
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Thursday, July 18th, 2013 AT 5:58 PM
Tiny
CJ MEDEVAC
  • EXPERT
DID YOU INSTALL A NEW COIL PRIOR TO THIS ISSUE?

HOW MUCH OF YOUR BABY HAS BEEN MONKEYED WITH OVER THE YEARS. UNDER THE HOOD?

WHAT HAS BEEN MODIFIED FROM ORIGINAL?

WAS IT RUNNING FINE. THEN YOU PUT ON THE NEW/ REBUILT STUFF. THINGS WENT WELL FOR A WHILE. NOW THE SICKNESS?

IT WAS NOT RUNNING FINE. THEN YOU STARTED SLINGIN' THE PARTS AT IT?

. BE NICE TO KNOW WHAT ENGINE YOU HAVE.

EVEN PROPIN' THE HOOD BACK ON THE WINDSHIELD, REMOVING THE BREATHER COMPLETELY, GETTING SOME "FULL ENGINE SHOTS/ PICS" IN A WELL LIT AREA. WOULD LET ME SEE WHAT JUST PULLED UP INTO MY GARAGE!

I HAVE LOTS OF HOMEMADE PICS/ DIAGRAMS OF TRYING TO GET ONE OVER IT'S SICKNESS'

YOU ARE ALLOWED TO WRITE ME A NICE LONG NOVEL ABOUT YOUR PAL. THERE AFTER, I WILL BE WRITING THE NOVELS TO YOU, I'LL MOST LIKELY GET THE SHORT ONES BACK. THAT'S NORMALLY HOW IT GOES. BUT I DON'T MIND, THE CJs BUTTER MY BISCUIT!

THE MEDIC
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Thursday, July 18th, 2013 AT 9:00 PM
Tiny
PAPABEAR78
  • MEMBER
I did buy a new coil, the motor is a 4.2L 258 straight six.
It's all original, it started running rough and it would back fire every now and then. So I gave it a complete tune up, plugs, cap, rotor, wires. But still nothing seems to work. I'll get some pics loaded up asap, I just want girl running again, I hate driving anything but a Jeep. Lol
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Friday, July 19th, 2013 AT 5:49 AM
Tiny
CJ MEDEVAC
  • EXPERT
ROGER

OTHER THAN THE BACKFIRING AND SUCH

WHAT HAD YOU DONE TO IT....BEFORE IT WENT INTO A COMA?

PICS ARE NICE TO HAVE!

ONCE WE GET THIS FIGURED OUT......I'LL SHOW YOU HOW TO DO THE FULL SCALE TUNING
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IMMA-GONNA DO SOME LINKING..................LETS NOT JUST START "DO'IN" WHAT I TOLD THEM TO DO!.....AS WE DON'T WANT ANY MORE STUFF FACTORED INTO THE MIX!..............LET'S STICK TO THE PORTIONS THAT STEER YOU TO......THIS WILL KEEP ME RE-HUNTING AND PECKING THIS STUFF ALL OVER AGAIN.

.........THEY MAY ALSO HAVE MODIFICATIONS THAT YOURS AIN'T GOT!
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SEE MY RESPONSE ON "APRIL 1" IN THIS LINK

http://www.2carpros.com/questions/1989-jeep-yj-far-replaced-starter-battery-iignition-coil-ignition-switch

THE ABOVE "PORTION" OF THIS LINK CONCERNS THE IGNITION MODULE
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THIS ONE IS GONNA CONCERN THE COIL........MY 2ND ANSWER ON "January 28, 2013"

http://www.2carpros.com/questions/1984-jeep-cj7-84-258-i6-weber-32-36-carb-tfi-igniton-upgrade-spark-been

LEMME KNOW WHAT THE RESULTS ARE OF THE MODULE TEST AND DO YOU HAVE THE "PROPER" COIL?
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.NEED TO BUY SOMETHING?.....THIS NEXT ONE IS FROM "ADVANCE AUTO PARTS".......YOU MAY BE ABLE TO DO SIMILAR THINGS AT OTHER STORES....."A124" WAS WORKING TODAY WITH THE PURCHASE OF A '05 WRANGLER RADIATOR TODAY FOR A FRIEND

http://www.2carpros.com/questions/2001-dodge-neon-milage-just-want-put-fliuds-their-locations

YOUR TURN

THE MEDIC
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Friday, July 19th, 2013 AT 1:12 PM
Tiny
CJ MEDEVAC
  • EXPERT
YOU MUST REMAIN STRONG AND FOCUSED

I TOO, FALL INTO A DEEP DEPRESSION STATE WHEN ONE OF MINE IS SICK

HAVE WE MADE ANY PROGRESS?

AS MUCH AS I HATE TO SAY IT. IT HAS BEEN 2 MONTHS SINCE A CJ SHOWED UP HERE AND WE CORRESPONDED BACK AND FORTH WITH OVER 30 RESPONSES TILL IT WAS ALL BETTER

THE GOOD THING ABOUT FEW SHOWING UP HERE. GOES TO PROVE THEY ARE THE BEST VEHICLES EVER MADE

TWO OTHERS SHOWED UP A MONTH LATER, BUT DID NOT CORRESPOND 'CEPT MAYBE TWICE. AND THEN THEY WERE SILENT. NO NEWS

I HATE IT THAT YOURS IS SICK, BUT FIXIN' A CJ GIVES ME THAT "WARM FUZZY" THAT ANSWERING THE OTHER CARS JUST DOESN'T EVEN COME CLOSE TO

KEEP US POSTED

THE MEDIC
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Saturday, July 20th, 2013 AT 7:31 PM

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