Ford 83-94 6.9 and 7.3L General Discussion of 83-94 6.9 and 7.3 Liter Ford Diesels

94 7.3 IDI SURGING

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  #1  
Old 05-24-2014, 01:05 PM
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Default 94 7.3 IDI SURGING

I WENT THROUGH THE O-RINGS AGAIN AND REPLACED JUST THE O-RINGS WITH SOME GREESE ON THEM. SINCE ALL OTHER THINGS (CAPS AND HOSES) WERE NEW. I ALSO INSTALLED A BOOST GAUGE WHILE I WAS AT IT, JUST UNDID PLUG ON TOP OF INTAKE HORN AND INSTALLED THE LINE THERE. THE MAIN LINE TO THE IP WAS A LITTLE LOOSE SO I SNUGGED IT UP. I HAVE 1/4 TANK IN THE TRUCK AND IT RAN FINE BEFORE THIS PROCESS AND NOW IT STARTS RIGHT UP THEN I GIVE HER A LITTLE THROTTLE AND IT REVS TO 2000 HOLDS FOR ABOUT 2 SECS THEN ALMOST DIES THEN BACK TO NORMAL IDLE. I BLED THE INJECTOR LINES ALSO AND FUEL FILTER ONLY HAS 1000 MILES ON IT. ANY IDEAS ON THIS I HAVE A REBUILT IP ON HAND BUT WAITING TO INSTALL IT TILL I NEED TO. (MAYBE NOW IS THE TIME HUH?) THANKS,
 
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Old 05-24-2014, 01:07 PM
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UPDATE

OK SO I DROPPED THE TANK THIS MORNING AND TOOK OUT THE SENDING UNIT. REPLACED THE CUP ON THE BOTTOM WITH SOME LONGER FUEL HOSE CUT IT AT AN ANGLE SO IT WONT SUCK TO THE BOTTOM OF THE TANK. STILL SAME ISSUE WITH IT SURGING. ALSO SPRAYED IP LINES AND RETURN LINES AND WERE I INSTALLED THE BOOST LINE WITH STARTING FLUID TO SEE IF IT WOULD REV UP AND NO CHANGE
 
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Old 05-24-2014, 07:29 PM
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OK JUST SPENT THIS AFTERNOON SWAPING OUT MY IP AND GOT IT FIRED UP AND I THINK THE TIMING ON THIS PUMP IS DIFFERENT ITS A REBUILT ONE I WILL LOOK FOR A THREAD ON TIMING TH IP ITS RUNNING ROUGH AT IDLE AND MISSING WHEN THROTTLED
 
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Old 05-24-2014, 09:12 PM
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OK I GOT THE PUMP TIMED CLOSE I THINK I GET GOOD BOOST 5 PSI VERY MINIMAL TURBO LAG NO SMOKE WITCH IS GOOD BUT NOT A LOT OF POWER SHOULD I MESS WITH FUEL SCREW OR SHOULD I ADJUST PUMP AND WITCH WAY?
 
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Old 05-24-2014, 11:41 PM
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I would #1 adjust Waste gate if you have one, then adjust pump to turbo smoke ( in order to get rid of most of it ) ...
 
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Old 05-24-2014, 11:58 PM
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OK SO I TUNED THE PUMP 2 FLATS AND ADJUSTED THE WASTE GATE 7 TURNS IN. I DID TAKE IT OFF TO TURN IT IN. I DROVE IT AND RUNS BETTER.

BUT MY HOSE I PUT IN THE TANK MUST HAVE PICKED UP SOME STUFF SO I WILL BE PULLING IT AGAIN TOMORROW AND REDOING IT TRY TO MAKE A SCREEN TO FIT THE HOSE.

WHEN IT WAS GOING HAD POWER THEN FUEL FILTER LIGHT CAME ON AND CHUG CHUG GOING TO PARK IT IN THE GARAGE TONIGHT BEEN WORKIN WITH HOT PARTS ALL DAY. WILL START AGAIN TOMORROW WHAT A WAY TO SPEND MEMORIAL WEEKEND.
THANK YOU FOR ALL YOUR HELP ALSO,
 
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Old 05-25-2014, 01:25 AM
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No problem... try putting an old nylon over the pick up .. it will keep out small junk ... or use larger pick up to a 30 mircon filter ( like a 14" tall 8" wide filter that will have easy flow through), and then your ,ain filter wont have to work as hard at filtering junk .. this is what I have done ,, the main filter is a bio0glass brand ( 5 Micron ) then through the original filter housing to IP ... never gets changed anymore due to the first filter being so much more efficent ( and cheep ) .. think its like 7 bucks
 
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Old 05-25-2014, 01:49 AM
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WHAT I HAVE DONE BEFORE ON GASSERS IS I GOT A WHOLE BUNCH OF SPRINKLER FILTERS THERE SMALL FOR THE POP UP ONES. I PUSH THEM INTO THE HOSE AND CLAMP THEM AND THE KEEP ALL THE CRUDE OUT AND BUT I DONT HAVE ANY MORE THEY SAT FOR TO LONG AND GOT ALL WEATHERED NOW THEY JUST FALL APART DONT KNOW IF THEY WOULD HOLD UP TO DIESEL THEY ARE PLASTIC..........BUT......WHO KNOWS.

DO YOU HAVE ANY PICS OF HOW YOU DID YOURS I CANT QUITE PICTURE WHAT YOU ARE SAYING. I AM PICTURING THE SOCKS THAT YOU WOULD USE FOR LIKE FILTERING VEGGIE OIL FOR BIO DIESELS, AM I CORRECT?

ALSO THIS ENGINE HAS THE BB CODE INJECTORS AND THE GARRETT A/R 70 STOCK DOWN PIPE I REALLY NEED TO JUST BUILD ONE I HAVE THE PIPE LAYING AROUND JUST WANT TO GET IT RUNNING DECENT FUEL ISSUES WISE BEFORE I GO TO HOG WILD. ANY PROS AND CONS TO THESE. I HAVE SEEN THAT THE BB INJECTORS ARE MENTIONED ALOT, AND HAVE NOT SEEN ANYTHING REALLY ON THIS TURBO.

MY DODGE 1ST GEN CUMMINS HAD A H1C TURBO AND MAN I GOT THAT THING TO MAKE 32PSI BOOST SUCH A FUN TRUCK BUT WAS TIRED OF REBUILDING THE TRANS. AND I GOT IT THERE WITHOUT A TON OF MONEY! ARE THESE TRUCKS CAPABLE OF KEEPING UP WITH THOSE OLD DIESELS?

I WILL JUST KEEP DIGGING ON HERE FOR ALL THE STUFF ABOUT THESE TRUCKS THANKS,
 
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Old 05-25-2014, 03:31 PM
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Yes a sock like for bio-diesel would work perfectly ...


DO NOT TURBO !!!!!



The wrist pins on a Nautrally Asperated engine are smaller and weaker than a engine that came with a turbo .... you will kill it if you go north of 10-12 psi ( not that it wont go higher, but it wont last long) ....

If you really want to play, get a 12V cummins VE engine , thier cheep and you cna make plenty of power for one of these trucks, of course you will need a trans and such , the VE dosent all have a intercooler and all that so easy install too ...
 

Last edited by 4x4manonbroke; 05-25-2014 at 03:34 PM.
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Old 05-25-2014, 04:25 PM
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OK SO I MADE A SCREEN FOR THE TANK THAT WILL STILL SUCK FROM THE BOTTOM BUT WILL NOT PICK UP BIG CRAP. AND REPLACED FUEL FILTER. I AM MAKING 7 PSI WHEN REALLY INTO IT WITCH IS PLENTY IT SMOKES AT TURBO LAG BUT DOESNT LAST LONG WHEN I HIT ABOUT 4 PSI ITS CLEAR AS DAY. BUT NOW THE ISSUE IS I HIT 5TH AND IT TAKES MORE TIME THEN IT DID WITH THE OTHER IP ON TO HIT 75 OR CLIMB MUCH AFTER THAT? THINK TIMING IS STILL OFF BUT HAVE A 300 MILE ROUND TRIP TO TAKE TOMORROW AND I WILL JUST WATCH THE GAUGES SO I DONT HURT HER. REALLY NEED TO GET IT IN TIME. DOES THIS SOUND RIGHT
 


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