1985 Chevrolet Silverado fuel

Tiny
CHIP6969
  • MEMBER
  • 1985 CHEVROLET SILVERADO
  • 150,000 MILES
I have dual tanks now and then the truck will act like its running out of gas if I switch tanks and pump the gas sometimes it will fuel die other times it will keep running vie replaced carb put in elec fuel pump could it be the selector valve
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Thursday, September 5th, 2013 AT 3:01 PM

3 Replies

Tiny
CJ MEDEVAC
  • EXPERT
FUEL FILTER?

YES, IT COULD BE THE SELECTOR. LISTEN TO THIS!

MAYBE RUST IN THE SYSTEM, STOPPING UP THE PUMP/ LINES/ SELECTOR/ ETC?

I'M PRESENTLY MODIFYING THE TANK IN MY '46 WILLYS JEEP.

SEEMS THAT ETHANOL IS MAKING MY STEEL TANK BUBBLE UP RUST DROPLETS (. LACK OF A BETTER WORD) ALL INSIDE OF IT

THEY ARE FLAKING OFF AND RESEMBLE PAINT FLAKES MAYBE THE LARGEST BEING 1/4 X 1/4 OF AN INCH AND SMALLER

MY TANK HAS A FITTING ON THE BOTTOM AND DRAWS FROM IT USING A 1/4" PIPE THREAD X 1/4" DOUBLE FLARE ELBOW FITTING. THE FLAKES ARE HANGING UP IN THE ELBOW, AS IT HAS ABOUT AN 1/8" HOLE IN IT. THEY SEEM TO STACK UP, MY JEEPS STARTS DYING, SOMETIMES THEY BUST UP AND SUCK ON THRU (FUEL PUMP SUCTION). IT LIVENS BACK UP. FOR A WHILE. FINALLY IT GETS TO BE TOO MUCH

DUE TO IT SUCKING FROM THE BOTTOM---THE WATER DOES LEAVE PRETTY QUICK. WHEN IT'S IN THERE. USUALLY FORMS FROM SITTING FOR A FEW DAYS

I'VE HAD OTHER PROBLEMS IN THE PAST, SO IT NOW COMES OUT OF THE TANK. GOES INTO A GLASS BOWL (LIKE FOR A TRACTOR), THIS CATCHES THE WATER, AND BIG STUFF (LIKE THE RUST). THEN ON TO MY REPLACEABLE FILTER ELEMENT FUEL FILTER. THEN ON TO MY GLASS BOWL FUEL PUMP (I TRY TO KEEP THE CRUD FROM GETTING TO IT). THE FUEL PUMP BOWL WILL ALSO CATCH WATER, SHOULD I LET THE OTHER BOWL GET FULL (I NEVER LET IT GET THAT FAR)

MY WHOLE SYSTEM WORKS GREAT. EXCEPT FOR THE STOPPAGE IN THE ELBOW UNDER THE TANK

I JUST NOW MADE AN ACCESS PORT IN THE TOP. OVER THE OUTPUT HOLE (IN THE BOTTOM)

I HAVEN'T TOOK PICS OF IT YET---BUT IT'S AT THE REAR PASSENGER SIDE OF THE TANK. DIAGONAL FROM THE NEW FILL SPOUT THAT I RELOCATED, SO I COULD INSTALL MY SHOVEL AND AX.I'LL TAKE PICS TOMORROW

SO.I CHANGED THE ELBOW TO A MORE SWEEPING ONE (A PLUMBING ELBOW). THE HOLES ARE STILL SMALL.

I TOOK 2 EARTH MAGNETS AND DRILLED HOLES IN THEM. THE PLAN IS TO ATTACH A WIRE AND LAY THEM ON EITHER SIDE OF THE OUTPUT HOLE. AN INCH OR SO AWAY

I'M GONNA DO THIS THRU THE NEW "HATCH" I JUST MADE. THERE'S A BAFFLE BETWEEN MY FILL SPOUT AND ALSO THE SENDING UNIT HOLE, THAT PREVENTS ACCESS TO THE BACKSIDE OF THE TANK. THIS IS THE REASON I JUST INSTALLED A "CLEAN OUT" BACK THERE OVER THE OUTPUT HOLE

FOR THE LAST COUPLE OF WEEKS, WHEN "WILLY" DIES, I HAVE TO REMOVE THE FUEL LINE FROM THE 1ST GLASS BOWL AND BLOW BACK INTO THE TANK

THIS MAY WORK FOR 2 DAYS. OR I MIGHT HAVE TO DO IT EVERY 5 MINUTES!

I'M SICK OF IT!

HOPEFULLY MY NEW PLAN WILL WORK.I'LL OPEN THE PORT. CLEAN THE MAGNETS. THEN PUT 'EM BACK.

NO MORE ETHANOL IN "WILLY". HOPEFULLY, THE RUST WILL FINALLY STOP HAPPENING, WITHOUT USING THE ETHANOL

MY OTHER JEEP HAS AN AFTER-MARKET 21 GALLON POLYETHYLENE TANK, THE STEEL FUEL LINES ARE THE ONLY THINGS THAT COULD RUST IN IT
.
.
SO. MAYBE REPLACE YOUR FILTER. STICK THE OLD ONE IN A VISE. SAW THE END OFF WITH A HACKSAW. PULL OUT THE ELEMENT. SEE IF YOU HAVE THEM DARN RUST FLAKES. WHICH MIGHT BE MESSING YOU UP. PRIOR TO THE FILTER

I'LL GET SOME PICS TOMORROW. THESE ARE PRIOR TO MY LATEST MODIFICATION, I INSTALLED A FIBERGLASS BODY WHEN I RESTORED HIM IN '91. JUST GOT AROUND TO DOING THIS. WHY DON'T I GET A NEW TANK? THIS ONE WAS NEW IN '91.I'D HAVE TO MODIFY IT TOO. THIS IS A '46 TRYING TO LOOK LIKE A '43!

THE MEDIC
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Thursday, September 5th, 2013 AT 11:04 PM
Tiny
CJ MEDEVAC
  • EXPERT
WON'T DO BUT SO MANY PICS
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Thursday, September 5th, 2013 AT 11:12 PM
Tiny
CJ MEDEVAC
  • EXPERT
. AIN'T HEARD FROM YOU YET!

NUTHIN' ON HERE FOR ME TO ANSWER RIGHT NOW

SO I'LL BORE YOU WITH MY UPDATE ABOUT "WILLY"

I'LL KEEP IT SHORT.I HAVE NOT DRIVEN HIM SINCE I ADDED THE 1-1/2 INCH FLANGE ON THE REAR, PASSENGER SIDE OF THE TANK (ACCESS PORT ON THE BACK SIDE OF THE BAFFLE)

IT CERTAINLY LOOKS LIKE HELL, BUT AT LEAST IT'S UNDER THE SEAT AND IN THE CENTER OF THE JEEP. THIS IS A $12 POSSIBLE SOLUTION FOR ME

PIC

1) ACCESS PORT. JUST INSTALLED

2) THIS IS THE BOTTOM OF THE TANK. NOW WITH A "STREET ELL" INSTALLED, MAYBE IT WON'T STOP UP LIKE THE DOUBLE FLARE 90 ELBOW. NOTICE THE BULGE OR RECESS ON THE TANK AROUND IT

3) THIS IS 1 OF 2 POWERFUL MAGNETS I DRILLED A HOLE IN. THE MAGNETS ARE ABOUT THE SIZE OF A QUARTER, BUT TWICE AS THICK. I FOLDED 3 STRANDS OF STAINLESS STEEL SAFETY WIRE THRU THE HOLE, THEN CHUCKED UP THE 6 ENDS INTO MY BATTERY DRILL AND TWISTED THEM ALL THE WAY DOWN. NOW SORTA A HANDLE FOR THE NEXT PIC

4) THIS IS A PIC THRU THE ACCESS, LOOKING AT THE TANK OUTLET, ON THE INSIDE OF THE TANK. RIGHT NOW I HAVE PLACED BOTH OF THE MAGNETS NEAR THE EDGE OF THE RECESS, ONE TOWARDS THE TANK'S FRONT, THE OTHER TOWARDS THE SHOVEL AND AX. THE WIRE HANDLES STICK UP A LITTLE BIT IN THE ACCESS HOLE

. MY WHOLE TANK IS RUSTED LIKE THIS. MOST HAPPENED RECENTLY, WHEN I DID NOT DRIVE HIM REGULARLY

5) RIGHT TO LEFT FROM THE TANK. GLASS BOWL (NOW, THE 2ND LINE OF DEFENSE, THE MAGNETS WILL BE 1ST). FUEL FILTER. GLASS BOWL FUEL PUMP

6) THIS IS WHAT GOT INTO MY 1ST GLASS BOWL, I HAD DUMPED IT 5 MILES EARLIER. THIS WAS BEFORE I PUT THE MAGNETS IN.I GOTTA DRIVE HIM TOMORROW, TO SEE WHAT I FISH OUT WITH THE MAGNETS!

. ANY HEADWAY ON YOUR SITUATION?

THE MEDIC
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Friday, September 6th, 2013 AT 9:12 PM

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