1977 Jeep CJ5 stalling out

Check the choke adjustment and also the EGR valve if its opening and closing

HEY BOSS MAN!

I'M KINDA IN A HURRY AT THE MOMENT

I'M GONNA SLING YOU A FEW "ANSWERS" TO FLIP THRU AND LOOK OVER......YOU MAY WANNA START O "PAGE ONE" OF SOME OF 'EM

I PERFORMED A 2CARPRO SEARCH USING KEY WORDS LIKE....CJ MEDEVAC....JEEP......TIMING.....TUNING....ETC (YOU CAN ADD MORE AND GET OTHER RESULTS)

PAY ATTENTION TO "MY ANSWERS" AND PICS........THERE MAY BE SOMETHING SIMPLE THAT YOU MISSED..........OR SHOULD DO REGARDLESS TO MAKE THINGS CORRECT!

HERE'S A FEW IN THIS LINK............................

https://www.2carpros.com/search?q=CJ+MEDEVAC+JEEP+TUNING+FILTER+TIMING+&search=Added

HOPEFULLY THAT HELPS SOME........RETURN TO THIS THREAD WITH ANY RESPONSES!!!!

I WILL AID YOU MORE....LATER!...............SOMETIMES IT'S VACUUM CRAP THAT IS NOT RIGHT

GIMME ANY MORE INFO THAT YOU......SEE I LIKE TO KNOW FROM THE OTHER POSTS

LAY MR. HOOD BACK ON THE WINDSHIELD FRAME----REMOVE THE BREATHER!---GIMME SOME FULL ENGINE SHOTS FROM OVERHEAD--LEFT AND RIGHT SIDES-------AND ONE OF THE WHOLE JEEP, AS WE LIKE TO SEE WHAT JUST PULLED INTO OUR GARAGE!

REPLY TO THIS THREAD!

THE MEDIC

It ran fine in till I went to the gas station and put gas in before I used a gas can to put gas in that's when it all started I drove for bout 20 min then it started to stall out now it won't even idle for two min

We also adjusted the choke settings and idle setting so it would idle right because it was set high it seemed to work but I drove bout 5 blocks and it stalled out I did notice the coil would get warm way before the motor see some before mention something on that

And most of the engine parts are original carb, coil, distributer. Was really just wanting to use it this winter you know

this cold very well be in need of a carb overhaul especially for sitting so long then adding todays fuel in it. it may have worn out the accelerator pump and power valve as well as who knows what in carb or if it ate the float out in the center which happens quite often with plastic floats.

LET'S TRY THIS

IT AIN'T GONNA HURT NUTHIN'

https://www.2carpros.com/questions/jeep-wrangler-1988-jeep-wrangler-engine-issues-when-braking

IF YOU DISCONNECT THE FUEL LINE NEAR THE CARB---STICK IT IN A JAR---CRANK THE ENGINE OVER----IS THE FUEL COMING OUT STRONG AND IN SPURTS?.......IF IT'LL IDLE FOR 30 SECONDS, YOU SHOULD GET ABOUT A PINT OF FUEL IN THE JAR

THIS MAY RULE OUT EVERYTHING BACK TO THE TANK...LEAVING THE CARB

I TOO HAVE A '77 I HAVE MADE MANY USER FRIENDLY MODIFICATIONS TO IT

RETURN WITH A GRIN.....I'LL HANG WITH YOU AS LONG AS YOU KEEP RESPONDING

THE MEDIC

OK I will try that on Saturday when I'm off I did try seeing if the carb had suction by putting my hand over the air intake like in an awnser you gave someone else and it had plenty and I also disconnected the egr and it did nothing I will get pics for you then to

Back to my last post when I started it with out the air cleaner it ran kinda ruff but when I closed the intake with my hand it ran better i also added heat in the gas just incase there was water in the tank and I'm just curious I noticed on the manafold there was a level like thing I have never seen anything like that before and was just wondering what it is for and what it is I'm very thankful you are helpin me every one I talk to is just as lost as me

And Friday I will be getting the coil and a distributer cap just in case and so I can trust it more. I don't know if I mentioned that when it stalls at idle its like it was shut off and it will fire back up right a way but when I try to drive I don't want to fire back up and I have to pump the gas a bit. Sorry if I am just giving you info in peaces but I want you to have good details

I will get you one with no air cleaner on Saturday because my table isn't the best picture taker

if you can put your hand over the carb and it idles better that means you are cutting air to carb and it will idle better because it has an internal vacuum leak. either rebuild the carb or get another one.

IT'S SOUNDING LIKE YOU ARE GETTING TOO MUCH AIR----MIS-ROUTED LINES.....VACUUM LEAK...........OR TOO MUCH GAS......OR CARB/ DISTRIBUTOR ISSUES

DO THIS WELL AWAY FROM STUFF YOU LOVE--WITH A SOPPING WET TOWEL (1ST LINE OF DEFENSE) AND A FIRE EXTINGUISHER (IF NEED-BE!)

GET HIM RUNNING---THEN SPRAY CARB CLEANER AROUND THE BASE OF THE CARB---THEN THE INTAKE MANIFOLD (TOP AND BOTTOM)
THEN ANY WHERE ELSE THERE IS VACUUM LINES OR VACUUM APPLIANCES........I CANNOT TELL IF YOU HAVE A BRAKE BOOSTER IN THE PICS

WE ARE LOOKING FOR THE ENGINE TO DIE OR GO INTO CARDIAC ARREST WHEN THE CARB CLEANER HITS THE VACUUM LEAK AND SUCKS IT IN.......WAH-LAH! YOU MAY HAVE FOUND IT!

SEND ME THE PICS ....POSES I REQUESTED BEFORE (GOOD LIGHT)...I MIGHT CATCH A GLITCH IN HOW THINGS ARE CONNECTED

IT ALSO COULD BE THE CARB.....ADJUSTMENTS.....OR SOMETHING INTERNAL......LIKE THE FLOATS ARE TOO HIGH (BBD FLOATS ARE BRASS).....OR THEY HAVE A HOLE IN 'EM AND ARE SINKING.....MR. CARB IS COMPLICATED, SO IF YOU ARE UNSURE, DON'T TAKE HIM APART!

BEFORE YOU BUY BIG STUFF, CONSULT W/ ME!

I MADE YOU A DIAGRAM ABOUT THE EGR

KEEP US POSTED

THE MEDIC

OK I will do that to marrow and I will get the pics for you

Ok I did what you said with the carb cleaner and I found no vacuum leaks I sprayed all the lines and around the carb and intake found nothing I couldn't get the pics due to it has been raining all day I also did what you wanted me to try with the way to clean the carb out and that acualy did choke it out so I'm still lost on it

WELL THE "RAG THING" SHOULDA CHOKED YOU OUT......IT JUST GOT FLOODED!

HOLDING THE PEDAL TO THE FLOOR, AND CRANKING WILL QUICKLY CLEAR OUT THE EXCESS FUEL AND IT'LL FIRE BACK UP

REPEAT THE PROCESS 2-5 TIMES

THIS MAY NOT FIX YOU....BUT IT WON'T HURT NUTHIN'

THE WHOLE IDEA IS, THE CARB IS SUCKING VACUUM/ AIR INTO THE THROAT.....WHEN YOU BLOCKED OFF THE SOURCE, IT WAS STILL DRAWING A VACUUM INSIDE........AS IT "SEARCHED" FOR AIR, THE ONLY PLACE IT COULD GET IT WAS TO SUCK THE FUEL THRU THE INTERNAL PASSAGES IN THE CARB........THIS SOMETIMES WILL CLEAN OUT ANY CRAP THAT IS IN THOSE PASSAGES

................AND YOU HAVE "TIMED IT" AND MADE "CARB ADJUSTMENTS" AS PER THE LINKS I SENT ON THE 1ST PAGE THAT PERTAIN TO TUNING?

WHEN YOUR JEEP IS AT OPERATING TEMP, AND YOU ACTUATE THE THROTTLE A TIME OR TWO, YOUR CHOKE BUTTERFLY IS ALL THE WAY OPEN AND IS STANDING VERTICAL?

GET ME THEM PICS...REMOVE THE BREATHER...L AND R AND TOP OF THE ENGINE------WITH THE ENGINE TAKING UP MOST OF THE PICTURE FRAME.........THE MORE THE MERRIER.....CLOSER IN SHOTS OF THE CARB, ALL SIDES.......I JUST WANNA SEE HOW THINGS ARE ROUTED.....MAYBE I'LL FIND A GLITCH

WE'LL GET IT ALL FIGGERED OUT!

THE MEDIC

No I have not timed it never done that before and we did make small carb adjustments my father in law did them he has done them several times to his projects and yes the choke butterfly is vertical when at temp

ok here are the pictures you wanted and i also fired it up today and it just sat there and kept running intill i reved it to driving rpms or about 3 min and then it started to spit and sputter and the died i had to really pump the gas to fire it back up

ok heres the rest i did get a pic of where the butterfly is sticking it is the 4th pic
and on the last one is where i seen smoke coming from at where the intake and the exhaust manifolds meet and i still dont know what the petal looking thing is or what it is for because the spring for it is broken

I AIN'T FORGOT ABOUT YOU!

ARE YOUR EMISSIONS TESTED IN YOUR REGION?......WHAT DO THEY CHECK ON THIS JEEP)?.......IS YOURS EXEMPT BECAUSE OF AGE?

WE REALLY NEED A PLAIN JANE TIMING LIGHT AND A DWELL/ TACH METER TO TUNE THIS PUPPY AND ALSO TO TEST THE DISTRIBUTOR'S OPERATION

PAWN SHOPS ARE A GOOD INEXPENSIVE SOURCE FOR THESE "DINOSAURS"

HAVE YOU CHANGED THE COIL OR THE IGNITION MODULE (TELL ME---DON'T DO IT YET)???........GIMME THE COIL'S PART NUMBER, AND WHERE IT CAME FROM

THE MEDIC

No do not test here and I just put a new distributer cap and rotor on it I have not changednthe coil yet was gonna just in case the coil and ignition module are still the original ones for this jeep and it did run fine when it was parked by my wife's uncle that's y I'm so lost on it but I will see if my father in law has a timing light

Ok my father in law had a timing light so we checked it and it was fine on the timing

.........AND YOU CHECKED IT AT THE CORRECT IDLE SPEED.....AND WITH THE VACUUM ADVANCE VACUUM LINE PLUGGED OFF AT THE DISTRIBUTOR?

IF THAT'S RIGHT

WE NEED TO CHECK "BOTH" MECHANICAL ADVANCE AND VACUUM ADVANCE FOR PROPER OPERATION.....WE WILL NEED THE LIGHT AGAIN!

........I'LL EXPLAIN.....LEMME KNOW WHEN YOU ARE READY

MERRY CHRISTMAS!!!

THE MEDIC

look I said in a reply lmany times agao thtthis thing needs a carb overhaul that is the reason for stalling, not the timing etc. you guys are going down the wrong path this car has sat for 20 or more years and the fuel in todays gas has alcohol which was n't very prevealant 20 yrs ago. your accelerator valve and power valve if it has one are probably shot due to the alcohol eating up them. As well as the float the inside of it may be eaten out as well. so quit screwing round with the timing, fix the carb FIRST then check your vacuum advance.

Well I am going to Chang the float but I have to order one that is a week out and Iccan't afford a new carb or to have it rebuilt every symptom it has matches what I have seen for asinking /sunk float and they don't have the float in the rebuild kits or in any local parts stores

And the medic is just trying to make sure it is in top working order for me so if there are more problems then they to can be addressed before they get bad and make it run like crap again I've been working for two years so it has me irritated that I have to put more money I don't have in to it so if it he can help me save some money in the long run then its fine if I have to check a few things he has been a lot of help and is not just saying spend money this is support to be a help full site yes so

I'VE BEEN LOOKING FOR YOU A CARB KIT ALL ALONG

......I'M PRETTY GOOD WITH SEARCHING FOR THE BEST DEAL

THE HOLIDAYS AND THE WIFEY HAVE HAD ME RUNNIN' SO IT'S TAKEN A WHILE TO SEARCH WELL......AND I DID

A FEW WEEKS AGO I GAVE AWAY A YF THAT WAS GIVEN TO ME IN REALLY GOOD SHAPE.....THIS AFTER I AIDED THE FELLER IN CHANGING HIS INTAKE AND INSTALLING A CARTER BBD CARB

LIKE YOU, A 232/258 1 BBL KIT WITH A FLOAT IS HARD TO FIND.....I CAN'T FIND THE FLOAT, EVEN AT "OLE FAITHFUL" NAPA AUTO PARTS .........ZILCHO

THE BEST THING GOING HERE THUS FAR IS AT SUMMIT

HERE'S THE LINK

http://www.summitracing.com/parts/urm-10-10033?seid=srese1&gclid=CPnuprOfzLsCFcFj7AodVh8A1w

KEEP US POSTED

THE MEDIC

I found just the float from rock auto that's where I got my gas tank I looked it up yesterday

KEEP US POSTED ON PROGRESS

IF YOU ARE GONNA JUST "SPRAY" YOUR CARB PARTS CLEAN, "VALUCRAFT" FROM AUTOZONE IS BY FAR THE BEST-US AT CLEANING. ONE CAN WILL DO THE JOB OF THREE CANS OF THE COMPETITORS!

PIC 1) MY NEW JEEP PAL'S JEEP BESIDE "WILLY" (HE'S ONE THAT FOUND ME FOR HELP, I MAKE HIM DO ALL OF HIS REPAIRS....I EXPLAIN AND GUIDE HIM ALONG ON HIS '81 CJ 5) HE'S IN HIS LAST YEAR OF COLLEGE AND TRULY LOVES JEEPS. HE HAS A RUBICON TOO, IT'S NOT MY CUP OF TEA

PICS 2-4) HE REALLY LIKES "WILLY".......SAYS HE'S GOTTA HAVE ONE!

THE MEDIC

Will do I found a couple floats at the Napa here so I hope they can get them so when she's back up and running strong I will let you know

Ok I'm lost on the number I need for the carb on the side of it it has 71545 and on the side of the choke housing it says c-3 I cant read the little brass tag onto the top of the carb

Well I changed the float and cleaned the carb really good and still ran for a bit and died it wouldn't even restart this time so what's the thought now

2 TEASPOONS OF FUEL DOWN THE CARB......THEN A SPRAY/ SQUIRT BOTTLE OF GAS

.........CAN YOU NURSE IT ALONG FOR A MINUTE OR SO?

OUTSIDE--WET TOWEL--FIRE EXTINGUISHER ON HAND......NEAR NUTHIN' YOU LOVE

DID YOU SET FLOAT LEVEL CORRECTLY?

DID YOU TEAR IT DOWN AND CLEAN IT?

BLOW ALL PORTS OUT WITH AIR?

THE MEDIC

Yes I went buy the selects the carb kit gave me and I noticed a lot of smoke from the intake and on top of that the heater core exploded all over so I guess it will have to wait till spring now

SO LIKE WHERE IS THE SMOKE ORIGINATING FROM ON THE INTAKE?

THIS AIN'T THE MARINE CORPS

............YOU DON'T GET OFF THAT EZ!

THIS IS U.S. ARMY AIRBORNE RANGER TERRITORY

......................WE'RE GONNA BYPASS THE OLE HEATER CORE

I SURVIVED RANGER SCHOOL DARBY PHASE, MOUNTAIN PHASE (TWICE), DESERT AND FLORIDA PHASE WITH ONLY JUNGLE FATIGUES AND JUNGLE BOOTS......YEAH!......NO COAT! DEC-APR..........IT WAS 5 DEGREES AND THE WIND GUSTING 40 MPH IN THE MOUNTAINS!..........LITTLE CHOW.....LITTLE SLEEP.....WET AND ALWAYS ON THE MOVE WITH WHAT COULDA BEEN CALLED "MY JEEP STRAPPED TO MY BACK".....AND ONLY MY WONDERFUL RANGER BUDDY TO KEEP ME WARM!

YOUR TURN

THE MEDIC

The smoke is coming from the bottom of the intake and the carb and not just a little smoke eather and how to bipass the heater core

DO WE HAVE A BREECH IN A GASKET???

THE BOTTOM OF THE INTAKE HOOKS TO THE EXHAUST MANIFOLD......MAYBE IT'S GOT FUEL/ OIL IN IT..............THAT WILL BURN OFF SOON!!!!

........IF YOU ARE DUMPING FUEL.....IT WON'T!.....BE AWARE THIS CONDITION MAY CAUSE A FIRE (IT'LL BE RUNNING LIKE CRAP...IF AT ALL).....DO YOU SMELL FUEL?????

..............I LIKE PICS.....POINT AT PROBLEM AREA!

DID YOU REBUILD THE CARB COMPLETELY?

NOT WATCHING ON MY END IS REALLY TOUGH---I MAY BE ABLE TO GET YOU THE BEST-US HELP POSSIBLE IF YOU WANNA ATTEMPT IT AGAIN

'NUTHER BYPASS PIC.....MAKE SENSE?

THE MEDIC

In one of the pics I put up I shows where most of the smoke is coming from which is where both manafolds meet it has a little bit of a fuel smell but I won't be able to get another look at it for a while due to a big snow storm hitting tomarrow could this have been the problem from the start

ihave no further suggestions

IF THE OLE GASKET IN THE MIDDLE NEED TO BE CHANGED

YOU LOOSELY BOLT IT IN THE MIDDLE OF THE 2 MANIFOLDS---THEN WITH A NEW INTAKE/ EXHAUST MANIFOLD GASKET----FOLLOW THE TIGHTENING SEQUENCE FOR YOUR YEAR

I USUALLY DO IT IN STEPS----I GO "SNUG" WITH MY ONE FIST AROUND THE CENTER OF THE RATCHET HANDLE---THEN 10 FT.LBS.----THEN TO RECOMMENDED TORQUE----AS FOR THIS PIC "23 FT.LBS." (THIS IS A '86, IT DID NOT SANDWICH AS YOURS DOES) ----THIS IS WHERE ME AND STEPHEN SCHOOLED TUCKER ON "HOW NOT" TO START AT ONE END AND CRANK IT DOWN, AND BREAK YOUR INTAKE!----THE PAPER WAS AN ADDED TOUCH TO EMPHASISE IT!

THEY ARE VERY SIMILAR.........UNIVERSALS FOR YOUR SOCKETS WILL WORK REAL WELL---ESPECIALLY THE KIND THAT ARE 3/8-PIVOT-9/16 ALL IN ONE PART!

YOU WILL NEED THE SPECS FOR DOING YOURS---GOTTA BOOK?

THE MEDIC