in middle of installing walboro some stuff broke please help

Hey Abraham I cannt help but laugh. I've got a 98 and ordered from super coupe intank pump. Which was all good and everything except the instruction telling you everything doesn't fit right was from one of the customers emailing in the way to make it work lol. And I still had to make it work from there. Good luck My fuel rail pressure at idle is 32-36psi. I dont think the pressure if a little lower would cause that much of an issue at little throttle.
 
htrdlincoln98 said:
Hey Abraham I cannt help but laugh. I've got a 98 and ordered from super coupe intank pump. Which was all good and everything except the instruction telling you everything doesn't fit right was from one of the customers emailing in the way to make it work lol. And I still had to make it work from there. Good luck My fuel rail pressure at idle is 32-36psi. I dont think the pressure if a little lower would cause that much of an issue at little throttle.
Click to expand...

the issues were on the throttle at idle or light throttle its ok.. or sometimes ok... if i get on it itll hickup and stuff.
 
One thing I noticed that made me think this may be a problem on my pump was the rubber fitting that fits on top of the pump didn't fit as tightly as the stock pump. Maybe letting Fuel Leak back into the tank at pressure But I had no problems Yet..
 
can anyone explain to me what that rubber isolator is supposed to do, that if it is ripped - is it a major problem?
 
htrdlincoln98 said:
One thing I noticed that made me think this may be a problem on my pump was the rubber fitting that fits on top of the pump didn't fit as tightly as the stock pump. Maybe letting Fuel Leak back into the tank at pressure But I had no problems Yet..
Click to expand...

that definetly could be an issue... but it felt very snug when i put it back on - but it was the original one - i should have just bought new tubing and 2 small clamps like 4 bucks and would have eliminated that being the problem, but i doubt its that.
 
another thing, is that when i had the fuel tank dropped down (not completely off) when i had the fuel pump installed - i went to turn the car on and it wouldnt start - i searched around for that fuel pump cut off thing thats in the trunk but i wasnt sure where it was or if the thing i saw was the right thing.... but i bolted the fuel tank back up and sure enough it started up - so it could be something relating to that.

when i did my install i pulled the fuel pump fuse - and released the pressure through the Schrader valve and continued from there - dropping the exhaust - dropping the tank.

hope that may shed some light...
 
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ok well i went for another test run, cold start - took a lot longer to start up then normal cold starts - but i did get it to start. it sounded like it was missing a beat every now and then but for the most part it idled OK, not like the idle had before but its not nuts... i took a trip to the gas station and put 5 bucks in... just to make sure im not out of fuel. on the way home it feels like i have no power - i gave it some juice and it just falls on its face- i tried a wot for an instance, its definetly not getting the right ammount of fuel - cuz it really didnt react - but it drives OK under light throttle - meaning i can actually drive it but its not getting the fuel its supposed to get

the part i dont get is that i drove to the gas station right after i did it and it drove great - then as soon as i get back it and start it 10 minutes later it actus up and its constantly acting up. i have no check engine lights... its just running like crap no power.

the pump sounds good - its a lot louder than the stock unit - it sounds like its working right - it starts right up with healthy initial pre ignition -

im putting my money on the the rubber hose from the pump to the bracket - i should have just replaced it, i bet as soon as i got on it coming home from the gas station the first time (went wot) it probably blew off or lossened or cracked who knows.. and know the fuel is pumping but its probably leaking back into the tank thus not getting the pressure from the fuel pump...

i doubt the FPR has gone bad - it has to be something i messed up because before i put in the filter the car was running great, i just had a slight loss of power off the line at WOT and at higher speeds. other than that it hauled!
 
ide bet all the whiskey in Ireland that im not getting enought fuel pressure because of that cracked house. also i was reviewing an install for the pump... something i didnt do is i did not unhook the fuel fill lines and something called a jumper line? i just took out the two 13mm bolts for the front two straps and dropped it that way - the back of the fuel tank was still raised so i doubt it would be a problem, i just wanted to put that out there.

im glad i just dont smell gas - im not leaking - i dont want to blow up! i figured i would have thrown a check engine light with the incorrect fuel pressure?

btw im not ruling out that the fuel pump might actually be defective! but i doubt it :-)
 
Until a fuel pressure test is done there is little that can be done besides dropping it again.... :( Of course, you probably have to do that anyway.
 
can it run with out that gas guage in there? because my guage is off (obviously) but my dash thing constantly says LOW FUEL. thats my first question.

2nd - what does that rubber isolator do? GEN II's do not have this set up.

Unity - do you have a Gen I with this Walboro unit installed?
 
Yes you can run it without the gauge, but its not a good thing to do! :)

Not sure...

No, I do not have one yet. I am ordering one Thursday and have it over-night shipped so I can install on Sunday. I will take pics of my pump, etc.

In my opinion it may be worth just dropping the tank and making sure nothing is pinched.

ALSO, make sure if you jacked the car up you did not pinch a line! Seen that happen too!
 
ok i think i know what the culprit is, ive been reading as much as i can about gen 1 with walboro, apparently the bottom of the support where the walboro sits on top off (the two prongs or fingers) has to be modified for it to properly fit, ive seen it dremmeled or one of the prongs just broken off, thats where the fuel first enters the pump, i just squeezed it between the two prongs where the stock one was fit snug is too much for the walboro because its wider- i bet its pinching a bit there.

also i'm unsure if i should use the stock fuel sock (filter) that goes on the bottom of the filter - some people dont mention it others do but im not sure if there talking about a walboro or stock unit...

but what true about all the other stuff ive read is that they had to alter the rubber isolator and modify the metal prong for the gen one for it to be proper.
 
wheres XLRVIII? i'm sure he'd know exactly whats up. I remember he did this with limited hand tools at a racetrack.
 
Hey Abraham I just found this thread using search....
The GEN 1 PROCEDURE IS IN HERE
I have just ordered a Walbro from JD's for $90.00 Shipped the Regulator is on Back order for 2 weeks or so, And I am in the waiting game for it!

http://www.lincolnvscadillac.com/showthread.php?t=36187&highlight=fuel+pump

Scroll down to where you see Ray's post
"Go here and get the 96-98 Cobra walbro fuel pump item #GSS342, and get the Kirban Fuel pressure regulator item #KIR5018. And the use this procedure to R&R your pump. There is a link there to the pix as well, and that procedure is for your 95 Mark VIII, not the second gen Mark VIII, which has a totally different type of sending unit installed in the tank.

Hope that info helps."
 
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ive already read that - the 15mm are actually 13mm, - the rubber isolator has to be modified to occompany the walboro fuel sock, i ripped my isolator, not by accident but I thought it would fit with it on there, because it says so in that write up. it absolutly will not - you have to cut the bottom - had i known that once less ripped isolator so...

so you modify that rubber isolator, you also have to modify the base of the bracket, it has two prongs that hold the stock fuel pump - well with the new walboro it doenst fit in there with the rubber isolator on there, or for that matter with out it, so you have to break one end off or grind it down so it will fit.

while i was fuddling around down there i also broke the fuel guage part that attatches to the bracket - the sodering that connects the yellow wire to the gas guage broke on me, now i need to buy a new one - along with that isolator. Wish it would have said : will not fit on walboro pump with sock, you must cut rubber isolator be careful...

i also should have just made a new tube for the fuel pump to the bracket, i probably have a leak there but it was snug when I put it in there, who knows what happened after it had some pressure.

but my main problem i think is the base of that bracket, i squeezed it in there, i bet its putting pressure on the feed on the bottom of the pump to be able to fit into the bracket. Where everyone whos done a write up with pictures has modified that base... maybe this person did not get a 255 but the 190? i dont know how much different they are.
 
AbrahamLincoln said:
no one has a gen 1 with a walboro 255?
Click to expand...

Many of us do.

I bought mine as a Summitt 255.
It was listed as the fuel pump for the Mustang Cobra.

It's been several years since I replaced mine, so my memory is going to be a little fuzzy. I also used the online tutorials as a reference.

I vaguely remember simply reusing my old isolator, rather than the new one.
And the fuel pump came with a new filter sock.

I remember the existing cage being a rather snug fit.

And the 255 system was notably louder than the stock one.

I'm honestly not sure how to help you here, because I'm not sure exactly what you did.... worse case scenario, you can likely buy another used fuel pump assembly (case/pump/gauge sending unit) from Jamie. I can't imagine there's a lot of demand for that part.
 
the rubber isolator + walboro and its new fuel sock, absolutly do not fit, the bottom of the walboro is very wide, the bottom of the stock rubber isolator does not make enough room for how wide the walboro's intake is.

what i did do, which i think is where i went wrong - is reuse the stock rubber hose from the pump to the assembly, i should got new stuff on there like the tutorials said.

like i said earlier, it was fine for my first trip to the gas station. on the way home i gave it some heavy foot, not all the way. i bet that im loosing fuel from that line now.

can someone explain to me what that rubber isolator does?
 
i just need a fuel level thinger, and a new rubber isolator. or im going to resoder the fuel levler. i dont have the money really to buy anything expensive. i also got 255 through summit racing, and yea it def. is louder than the stock unit, i can hear it over my exhaust not even being on, i dropped it after the thrid cat.
 
goog luck glad I have a gen 2
when you fix it you should do a write up with pics to show what others have not
 
unity said:
Yes you can run it without the gauge, but its not a good thing to do! :)

Not sure...

No, I do not have one yet. I am ordering one Thursday and have it over-night shipped so I can install on Sunday. I will take pics of my pump, etc.

In my opinion it may be worth just dropping the tank and making sure nothing is pinched.

ALSO, make sure if you jacked the car up you did not pinch a line! Seen that happen too!
Click to expand...


Unity may be one to something here.

If you didn't disconnect the fuel lines before lowering the tank, you may have easily pinched/kinked the fuel lines..when you put it back up..

When I did my pump the first time, I had a helluva time getting the lines situated for the reinstall without bending and pinching them.

The walboro install in a first gen is very easy, you dont have 1/2 the issues the second gens have with the bucket and such.
Hardest part about the first gen install is to NOT BREAK or even BEND the fuel pump sending unit..{as you have seen)

The rubber thing on the bottom is only a vibration isolator, no worries there.

But.. you do have to find out if you have pinched one of the external lines..
OR if you have a internal tank leak via the rubber hose at the top of the pump.

The kit SHOULD have had a replacement hose, the one I got from www.50resto.com did. If yours didn't then you didn't "save yourself any money.. or trouble" by going with that "advanced auto" store.
Did they include the replacement hose?
IF not.. I'd be SUPER PISSED.

Also.. if you didn't "remove" one of the fingers on the pump bracket and just jammed the pump in between those two fingers, then THAT might be the entire issue all together.
If the "INLET" to the pump is pinched between those two fingers... then it could probably be pinching off the fuel.


When I did mine... on my first gen, there was NO WRITE UP, for a first gen OR a second gen.
I went into it blind.. and had no problems whatsoever.

It's a very straighforward replacement, with little or no fabrication needed.
simply remove one of the pump bracket fingers, install the new hose, install the pump and put the tank back in the car.

You'll do better your "second time around" now that you are familiar with what has to happen.

Sucks.. sorry, wish i could say "click here" and your problem will be solved.

TIP: when someone that has "done the job before" tells you to do a particular thing... your best bet would be to "follow" the instruction and not just "jam things back together".

P.S. the fuel sendind unit ins't really cheap... and you might as well replace it when you "dive back into the tank".
 
ok, yes i reused my stock hose from the fuel pump to the bracket sure enough when i dropped it down again it was split and cracked from the beautiful flow of a 255 walboro - got it working and i love it.
i went to the parts store and got fuel line and custom fit my own piece.

i also left my exhaust off for the moment untill i can get replace ment bolts. i love the sound of just the mid pipe after the third cat - i love it! its just a tadd too loud but it gurgles awesome! - 1 for glasspax and stock piping after the third cat.

i broke my level float, so i need a new one :-( ... also after doing the fuel filter i did not put the fender cover back in because i have my caster off because of the p.o. hitting a curb ( im saving up to fix all of this) but it grabbed some of the fuel return lines when i was driving because the stock zip ties broke. hopefully its easy enough to put back on, one them i definetly think is the return gas line (no fuel) because no fuel is coming out of it thank god, but i have it parked for now so i can have at it tomorrow. im investing in a serious jack and jack stands tomorrow... i have some discount two ton jack that was being miserable but getting the job done, miserable - and the jack stands ok, but i need some heftier stuff for this heavy beast.

the only problem i see with getting the fuel return lines is it looks like it runs through the inner part of the fender, and the part that came off looks like it connects - its like 2 inches of grey rubber with black flexible plastic, pretty thing, its all in the passenger side wheel.

ugh time to drink some beers and not mess with the mark 8 but for now shes running BEAUTIFUL, walboro all the way with new fuel filter :-)
 
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