1981 Jeep CJ7 medic can you help me?

DOIN' FINE

ONE PIC AT A TIME PER REPLY IS OK

YOU'LL LEARN HOW TO "RESIZE" LATER ON

SEND ME THREE MORE PICS

FROM THE DRIVER'S MIRROR (OR CLOSER) TO THE REAR AREA AROUND THE CARB

TWO SHOTS OF THE DRIVER'S SIDE OF THE ENGINE FROM OBLIQUE FRONT AND OBLIQUE REAR

I'M GONNA CRITIQUE THE OTHER TWO PICS I HAVE

BELOW IS THE 1ST CRITIQUE

YOUR PIC/ MY AFTERMARKET BREATHER/ ORIGINAL BREATHER

I RECKON YOU KNOW TO CLICK ON MY PICS TO ENLARGE THEM

DID YOU SEE THE PICS WHERE I "RE-ROUTE" THE HEATER HOSES WITH TEEs TO GAIN MORE HEAT IN THE COCKPIT?

MORE CRITIQUES COMING - GO AHEAD AND SEND THE OTHER PICS, 1 PER REPLY

THE MEDIC

THE "BAD" AIR FROM THE PCV IS SUCKED INTO THE CARB

THIS AIR IS "PART OF" THE 14.1/ 1 (CLOSE TO A PERFECT BURN) AIR/ FUEL RATIO

IF YOU "BLOCK" THE PCV SYSTEM'S AIRFLOW (FINGER OVER THE PCV), IDLE WILL SUFFER THE MOST.

INSTALLING A SECOND PCV VALVE IN FIREWALL END OF THE VALVE COVER WILL "CHECK" (IT'S SUCKING THE WRONG WAY THRU IT) THIS WOULD BE THE SAME AS CAPPING IT OFF

I HAVE TAKEN A PCV VALVE TO THE GRINDER AND GROUND THE LIP OFF, DROPPED ALL OF THE GOODIES OUT. DOING THAT, LEFT ME NOTHING BUT A HOLLOWED OUT ELBOW (WHICH CAN BE USED FOR THE FRESH AIR END, IF YOU CANNOT FIND AN ELBOW)

THE MAIN CONCERN WITH YOURS IS, IT'S SUCKING UNFILTERED AIR

A DIRT DAUBER CAN/ MAY HAVE ALREADY BUILT A MUD NEST IN THE OPEN END OF THE HOSE. (CHECK FOR THAT), AS IT IS BLOCKING AIR FROM EVENTUALLY GETTING TO THE CARB. THEN LET'S ATTACH THE HOSE THRU THE AIR CLEANER FOR FILTERED FRESH AIR.

ABOUT TO WORK ON PIC #2

THE MEDIC

OK PIC 2

NEED THE OTHERS I REQUESTED!

WORKING ON PIC 3

I HAVE FOUND THAT THE "NYLON RUBBERY VACUUM CAPS" (COLORED ONES) WORK THE BEST FOR CAPPING OFF STUFF. THE "REAL RUBBER CAPS" TEND TO ROT/ SPLIT/ FALL OF IN A FEW YEARS, THIS MAKES FOR A FUN "WHY AM I IDLING SO HIGH" OR "WHY AM I BOGGING DOWN", WHEN YOU ASSUME THE CAPS ARE STILL CAPPED!

SEE THE CAPS ON MY CARB, NOTE: THE BOTTOM LEFT BLACK ONE IS THAT OLE EVIL RUBBER KIND!

2ND BEST TO NYLON IS A SHORT PIECE OF FUEL LINE WITH A SMALL BOLT SHOVED TIGHT INTO IT (FUEL LINE IS BETTER THAN VACUUM LINE, AS FAR AS "HOLDING UP" OVER TIME

THE MEDIC

IF YOU GET ANOTHER AIR CLEANER

GO WITH A SIZE THAT FITS A 2-5/8 INCH CARB

I MEAN OUT OF THE BOX FITS METAL TO METAL!

SOME PLACES HAVE LIKE A 4 INCH (OR OTHER) OPENING IN WHICH THEY WANT YOU TO USE A CRAPPY PLASTIC ADAPTER/ REDUCER TO MAKE IT FIT YOURS. THIS IS JUNK! HEAT WARPS IT AND YOUR CLEANER SINKS ON ONE SIDE

IF YOU CAN FIND AN ALUMINUM/ POT METAL REDUCER IT IS SO MUCH BETTER (THIS WAS THE STANDARD BACK IN THE 70's AND 80's)

BUT AS BEFORE--THE BEST-US KIND IS ONE THAT FITS PERFECT WITH NO REDUCER

MANY COME WITH A FITTING, AND YOU "KNOCK OUT" THE KNOCK OUTS ON THE BOTTOM SIDE THEN BOLT THE FITTING ON.

ALSO IF YOU HAVE CHOICES, PRICE THE REPLACEMENT FILTERS FOR EACH CANDIDATE, THIS WILL SAVE YOU MONEY AT REPLACEMENT TIMES!

THE INTERNET MIGHT BE A GOOD PLACE TO SHOP?

STILL GOTTA DO PIC 3!

THE MEDIC

SEND ME 3 MORE!

THE MEDIC

WANNA COPY A PIC OFF OF HERE?

RIGHT CLICK ON THE LITTLE PIC

CHOOSE/ LEFT CLICK "OPEN LINK IN INCOGNITO WINDOW" OUT OF THE CHOICES

THE WINDOW SHOULD POP UP W/ THE PIC, NOW AT FULL SIZE

GET ON TOP OF IT AND RIGHT CLICK

CHOOSE/ LEFT CLICK "SAVE IMAGE AS"

ANOTHER BOX WILL POP UP

AT THE TOP- I CHOOSE "MY PICTURES" (OR ANOTHER DESTINATION, IF WANTED, JUST STICK W/ MY PICTURES!)

AT THE BOTTOM NAME THE PIC WITH IT'S OWN UNIQUE NAME OR NUMBER (LIKE CJ MED101, CJ MED102, ETC) THEN LEFT CLICK "SAVE"

THE PIC IS NOW YOURS (SAVED IN "MY PICTURES" ON YOUR COMPUTER)

DEPENDING ON YOUR COMPUTER, YOU CAN "EDIT" THE PIC (DARKEN, BRIGHTEN, CROP, ETC) MAKE IT BIGGER, SMALLER, FLIP, ENLARGE, PRINT, ETC

FOR INSTANCE, I TOOK A 1979 WIRE DIAGRAM (2 PAGES)

1979 WAS A GOOD YEAR IN THAT MOST OF THE BASIC (NON-COMPUTER) WIRING IS ABOUT THE SAME FROM '76-'86 (THE LATTER OF THOSE YEARS HAD A COMPUTER)

THIS DIAGRAM IS LIKE A MAP BETWEEN ALL OF THE ELECTRICAL PARTS, NEWER DIAGRAMS ARE LIKE FLOW CHARTS (EACH TYPE HAS IT'S OWN ADVANTAGES) I LIKE "THE MAP" MYSELF

I TOOK THEM TO THE "MICROSOFT PAINT" PROGRAM (SORTA PRIMITIVE) AND I COLORED EVERY WIRE TO THE BEST OF MY ABILITY TO THE CORRECT COLOR IT REALLY IS.

THE COLORS ARE LABELED SOMEWHERE ON THE WIRE

IF IT HAD A "TRACER" OR "STRIPE ON A WIRE (THE TRACER COLOR WAS NOT NOTED) EXAMPLE : DK. BLUE W/ TR 18 ( I COLORED THE WIRE DARK BLUE AND DOTTED THE WIRE W/ BLACK DASHES TO DISTINGUISH IT ("18" BEING THE GAUGE OF THE WIRE)

OF COURSE A "WHITE WIRE" IS A THIN BLACK LINE (WHITE IS NOTED SOMEWHERE ALONG IT)

IN PLACES, INFORMATION IS CRAMMED IN THERE, YOU MIGHT NOTICE THE BREAK IN THE WIRE IS INFORMATION, THE WIRE WOULD ACTUALLY TRAVEL ON THRU THE INFORMATION

FOR THE MOST PART, YOU CAN FIGGER IT OUT!

I EMAILED THE 2 HALVES TO AN OFFICE STORE

THEY ENLARGED IT QUITE A BIT

I ASSEMBLED THE 2 HALVES (THE JOIN, IS THRU THE FUSE BOX AREA)

THE RIGHT SIDE ON TOP (OVER THE OVERLAP) IS THE BEST FIT

I THEN HAD 'EM LAMINATE IT

(ALL FOR ABOUT $15-$20)

HERE'S MY GARAGE VERSION AND THE 2 PIECES

THE MEDIC

WHOOPS!

RIGHT HALF FAILED TO POST

HERE IT IS

THE MEDIC

OK I MISSED WHERE YOU JUMPED ON, GLAD YOU DID!

HERE'S OUR MESSAGE YOU SENT

IF YOUR EMISSIONS ARE CHECKED IN YOUR REGION, MY DEAL JUST AIN'T GONNA FLY!

NOT CHECKED OR DEEMED TOO OLD TO CHECK

MY WAY WORKS JUST FINE OUTTA THE TANK AND ON THE CARB THE VAPORS ARE SUCKED INTO THE CANISTER VIA A VACUUM LINE WITH THE ELIMINATION OF THE VACUUM LINE, NUTHIN' REALLY GETS SUCKED THRU IT.

HOWEVER THE GREEN GARDEN HOSE COLORED HOSE (FROM THE TANK) DOES NEED TO BREATHE (AS WELL AS THE BOWL VENTS ON THE CARB).

THE GARDEN HOSE COLORED ONE IS FROM THE TANK, BEFORE IT GETS UP FRONT (IN THE REAR FENDER) THERE IS A LIQUID CHECK VALVE (FOR SPLASHING GAS) AND A ROLLOVER CHECK VALVE (IN CASE YOUR ROLL OVER)

THESE REMAIN OPEN TO VENT THE TANK, UNLESS: LIQUID TRIES TO COME OUT/ OR YOUR RIG IS UPSIDE DOWN!

MY FUEL FILTER DEALEE WAS EXTENDED UP WITH A PIECE OF FUEL LINE AND A CLEAR FUEL FILTER (TO ALLOW IT TO BREATH/ TO KEEP THE DIRT DAUBERS (BUGS) OUT OF MY LINE

IF YOU HAVE A CARTER BBD, I SIMPLY ADDED ANOTHER FUEL FILTER JUST BELOW THE "TEE" IN THE BOWL VENT LINES. HENCE I HAD 2 BREATHING FILTERS, ELIMINATED A FEW LINES AND MY CRUMBLING CANISTER.

SINCE THEN I HAVE ADDED A HOLLEY 390 CARB AND A OFFENHAUSER 4 BARREL INTAKE TO MY 258. (18 MPGs KICKING AROUND/ POWER IF I GET ON IT!) THAT ELIMINATED THE BOWL VENT FILTER.

I STILL HAVE THE OTHER. NO FUEL SMELLS AT ALL IN THE COCKPIT

I HAVE ALSO FOUND THAT EXHAUST STRAIGHT OUT THE BACK JUST ROLLS BACK IN (DRAFT SUCTION FROM THE BODY), SO I KICKED MINE OUT THE SIDE RIGHT BEHIND THE REAR TIRE, MOST OF IT DOES NOT CIRCULATE BACK IN.

FEEL FREE TO CREATE A FREE QUESTION AND ASK FOR ME OR SIMPLY JUST JUMP ON BOARD OF A POST I HAVE ANSWERED (I WILL GET AN EMAIL NOTIFIER), THIS WILL ALLOW OTHERS READING IT TO FIGGER THEIR STUFF OUT TOO, AND WE WILL BE ABLE TO POST PICS TOO!

I DO APPRECIATE YOU CONTACTING ME, KINDA LETS ME KNOW MY PECKING AIN'T ALL IN VAIN! THIS AID AT ALL? THE MEDIC

### Hi Medic, I noticed in a previous post that you are using some sort of clear fuel filter for the vent line coming from the tank instead of the charcoal vapor canister. How exactly does this work? My charcoal canister is shot and when I removed the lines from it and plugged the vacuum hoses, I have a bad fuel smell in the cab of my cj7. As finding another vapor canister is almost impossible and $$$, I am looking for other options. Does your little fuel filter keep the gas smell out of the cab? Thanks!

PICS
1) GREEN HOSE/ FUEL FILTER FOR BREATHING
2) THIS IS WHERE I ADDED THE OTHER FUEL FILTER WHEN I HAD A BBD/ IF YOU PLUG THESE VENTS, WHEN YOU SHUT OFF THE ENGINE, THE FUEL SORTA BOILS OUT OF THE CARB ALL OVER THE ENGINE
3) NOTE: MY EXHAUST BLOWS OUT THE SIDE, NOT THE BACK

YOUR TURN

THE MEDIC

NOTHING COMPLICATED AT ALL

THE ONLY THINGS THAT WILL OCCUR IS

1) FUEL TANK EXPANSION MAY PUSH A FEW FUMES OUT (REMEMBER, THERE AIN'T NO SUCTION ACTION AS WAS WITH THE CANISTER AND IT'S VACUUM LINE) FILLING UP WITH FUEL MIGHT PUSH SOME OUT AS WELL

2) TANK CONTRACTION AND FUEL USAGE MIGHT SUCK IN AIR THRU THE VENT LINE

3) THE FILTER ON THE END IS A CHEAP $3 PLASTIC VOLKSWAGEN TYPE FILTER, IT IS "DRY", ALL IT DOES IS KEEP TRASH AND BUGS OUT OF THE LINE, WHILE ALLOWING AIR TO PASS BOTH WAYS.

WHEN I HAD A BBD CARB, I INSTALLED THE SAME KINDA FILTER ONTO THE BOTTOM OF THE PLASTIC TEE IN MY PIC

I NEVER TRIED SUCKING IT BACK THRU THE CARB (OR VACUUM PORTS), THAT WOULD BE ONE MORE LINE TO MAINTAIN OR TAKE LOOSE TO GET THE BREATHER OFF, OR IF ON A PORT, IT WOULD PROBABLY MAKE THINGS RICHER

IN DOING THESE MODIFICATIONS, I'VE NEVER HAD A FUEL SMELL ISSUE

OTHER PLACES TO LOOK FOR FUEL ESCAPING IS ALONG YOUR RETURN LINE TO THE TANK

AND OF COURSE, WHEN IN MOTION, SWIRLING EXHAUST COMING BACK INTO THE JEEP

I HAD A WEBER LIKE YOURS BEFORE I GOT MY HOLLEY (WHICH I LIKE THE BESTUS)

IN MY QUEST FOR MORE MPGs, I BOUGHT A BUNCH OF JETS AND OTHER GOODIES, I EVEN MODIFIED A SPARE AIR CLEANER SO I COULD USE "NORMAL" FILTERS AND HAVE FORCED AIR INTO IT. ALONG WITH A METICULOUS LOG BOOK AS TO WHAT I DID

I HAD GOTTEN FRUSTRATED WITH THE WEBER, 16 MPG WAS ABOUT ALL I COULD DO

I BOUGHT THE OFFY INTAKE AND THE HOLLEY 390

I DID NOT CARE ABOUT THE COST- I WAS GONNA GET BETTER MPGs EVEN IF I WENT BROKE!

USING THESE METHODS IN THIS LINK BELOW (O2 SENSOR AND AIR/ FUEL RATIO GAUGE ALONG WITH POWER VALVE SELECTION + HIS OTHER SUGGESTIONS) I WAS ABLE TO GET A STEADY (NORMAL DRIVING) 18 MPG (AND MORE POWER IF NEEDED)

http://www.bob2000.com/carb.htm

I DO APPRECIATE THE POSITIVE COMMENTS!

ANY OTHER STUFF YOU NEED TO KNOW, KEEP ASKIN'

I DON'T KNOW HOW MUCH SEARCHIN' YOU'VE DONE,

THE BOSSES SAY "SEARCHIN'" "MAKES AND MODELS" (SPECIFIC VEHICLES-LIKE CJ5/7) WILL ONCE AGAIN BE EZier TO DO! I'VE ANSWERED MOST OF 'EM SINCE I'VE BEEN HERE.

HERE'S ONE ONE OF MY EARLY ANSWERS THAT MIGHT BE REAL HELPFUL, IF YOU HAVEN'T SEEN IT ALREADY

https://www.2carpros.com/questions/jeep-cj7-1985-jeep-cj7-stalls-when-hot

YOUR TURN

THE MEDIC

THE REASON I MOUNTED MY VENT/ FILTER HIGH WAS FOR THAT "JUST IN CASE" POSSIBILITY THAT THE CHECKS IN THE DRIVER'S SIDE REAR FENDER LEAKED OR FAILED (DUE TO AGE). I FIGGERED THAT IN BOUNCING AROUND/ CLIMBING/ TILTING SIDEWAYS ON AN INCLINE, FUEL WOULD HAVE TO CLIMB HIGH UP IN THE VENT TO GET OUT. THE OTHER REASON BEING IF I DID GET IN DEEPER WATER, WATER WOULD HAVE TO BE ALMOST UP TO THE HOOD BEFORE IT COULD SEEP INTO THE VENT.

WHATEVER YOU DO, DEFINITELY GO ON THE OUTLET END OF BOTH CHECKS (TANK, THEN CHECKS, THEN THE VENT

I SORTA GOT MY FEEL DOING THE EXTREME KINDA STUFF WITH CJ-5s 1-5 WHEN I WAS A BIT YOUNGER. I DO KNOW EXACTLY WHAT A PRETTY MUCH STOCK CJ-5 CAN AND CAN'T DO! IF THE NEED EVER AROSE, I COULD PUSH THE LIMITS WITH "MR. JEEP" ('77 CJ-5) OR "WILLY" (MY '46 WILLYS)

HOWEVER, I WILL SOMETIMES CLIMB, DESCEND OR GET THE RIGHT OR LEFT SIDE HIGHER, BUT MORE OF A GENTLE BUNNY SLOPE KINDA WAY. I AVOID MUD, BUT IF IT'S THE ONLY WAY TO GO, TO GET TO MY DESIRED DESTINATION, I'LL GO THRU IT! BUT KEEP IN MIND, I DON'T JUST DIVE IN, I FIND THE EZ WAY THRU IT.

HERE'S THE FILTER, I LIKE IT BECAUSE IT'S CHEAP AND YOU CAN CHOP IT OFF (THE ENDS ARE STEPPED FOR DIFFERENT SIZES). I USE 'EM FOR DIFFERENT THINGS, ONE WAY BEING, ADD A FUNNEL AND SOME TUBING AND YOU CAN STRAIN GAS OUT OF A DIRTY CAN. YOU CAN USE ANY FILTER WITH THE RIGHT SIZED NIPPLES

http://shop.advanceautoparts.com/p/bosch-fuel-filter-e100033434bos/10809890-P?searchTerm=fuel+filters

SO, HAS ANY OF MY STUFF FROM OTHER POSTS AIDED YOU AT ALL?

IF YOU DO A GOOGLE SEARCH AND INSTALL "2carpros" AND "CJ MEDEVAC" THEN CLICK ON IMAGES, 90% OR BETTER OF THE DIAGRAMS AND PICS ARE MINE, ALTHOUGH I HAVE ANSWERED 8,981 QUESTIONS, SOME OF THE PICS WILL BELONG TO CJ POSTS, OTHERS MIGHT GO WITH ANY VEHICLE I ANSWERED (MOST OF THE TIME I WILL STICK IN MY JEEP PHOTOS, TO SHOW THE CAR/ TRUCK PEOPLE WHAT THEY ARE MISSING!). "JEEP RELATED" DIAGRAMS MIGHT TAKE YOU TO CJs

PICS BELOW

1+2) JEEP OEM FUEL SET UP (THE REGULATOR AND MINI FUEL PRESSURE GAUGE ARE "BELLS AND WHISTLES" I ADDED ON, I ALSO BENT NEW STEEL LINES TO DRESS IT UP SOME)

3) FUEL TANK DIAGRAM

4) THE FILTER AND PIPE EXTENSION I ADDED (I SHOW IT AGAIN TO GO WITH DIAGRAM 3, FOR OTHERS WHO MIGHT SEE THIS)

YOUR TURN-KEEP DISHING OUT THE QUESTIONS! OR REMIND ME OF ANY I DID NOT ADDRESS.

THE MEDIC

I JUST KNOWED THAT WOULD BE CONFUSING, BUT I LEFT IT ANYWAY!

WORKED TILL ALMOST MIDNIGHT LAST NIGHT, SORRY, I WANTED TO GET ON HERE, BUT THE BED WAS A SWEETER DEAL!

I MEANT

VENT IT HOWEVER, AFTER THE CHECK VALVES. NOT ELIMINATE THEM. NOT SPLICE IN BETWEEN OR BEFORE THEM. SO BASICALLY, THE ORIGINAL WAY WITHOUT THE CANISTER

BLOW BY?

I HOPE YOU HAVE LITTLE

THAT REAR HOLE IS FRESH AIR TO BE SUCKED INTO VALVE COVER/ INTERNAL ENGINE.

IT REPLENISHES THE CONTAMINATED AIR/ WATER VAPOR/ COMBUSTION GASSES (BLOW-BY) THAT, IF LEFT IN THERE, WILL CORRODE THE METAL PARTS INSIDE

IF I REMOVE THE REAR HOLE ELBOW AND PUT MY THUMB ON THE HOLE, (IF ALL IS "IDEAL") WITH THE PCV SUCKING (NORMALLY) MY ENGINE WILL BEGIN TO LOSE RPMs (STARTS DYING DOWN)--AS THE PCV (EVEN THOUGH IT'S SUCKING BAD GASSES) PROVIDES THE CARB/ INTAKE WITH PART OF THE "COMBUSTION AIR" IT NEEDS TO PRODUCE BEST AIR/FUEL MIX IT CAN.

WHEN THE ENGINE NOW RUNNING KINDA BAD, I REMOVE MY THUMB, AND I HEAR A BIG RUSH OF AIR SUCK INTO THE REAR HOLE. THE ENGINE IS RUNNING PERFECTLY AGAIN!

IF THIS DOES NOT OCCUR, EITHER YOUR GASKETS ON THE ENGINE BLOCK (VALVE COVER AND OIL PAN, EVEN A REALLY BAD REAR MAIN OR TIMING COVER SEALS) ARE SUCKING AIR OR YOU HAVE A LOT OF PISTON BLOW-BY. USUALLY ANY BLOW-BY IS SEEN PUMPING A LOT OF SMOKE OUT OF THE REAR VALVE COVER HOLE

USING THE INCORRECT PCV MIGHT ALLOW TOO MUCH OR TOO LITTLE AIR, AS WELL AS PLUGGING IT OFF, CRIMPING THE LINE. THE LACK OF THIS AIR WILL MIGHT NEAR MAKE IMPOSSIBLE TO SET YOUR MIX SCREWS CORRECTLY.

KEEP IT COMING

THE MEDIC