Fuel filter change
Thread Starter
Instructor
Joined: Oct 2005
Posts: 143
Likes: 0
From: Lincolnshire,ENGLAND
Fuel filter change
Have done this job a couple of times before and never had this problem.
Had a couple of goes at this now,not getting chance to remove and change the filter- Im getting a constant flow of fuel as soon as i dissconnect one end of the filter, and it does not stop?
Releaved pressure as normal, tried jacking up at diffrent angles, had another go this morning with the fuel tank level low- no luck.
Did'nt do this the first two times i changed it. Am i missing something?
Had a couple of goes at this now,not getting chance to remove and change the filter- Im getting a constant flow of fuel as soon as i dissconnect one end of the filter, and it does not stop?
Releaved pressure as normal, tried jacking up at diffrent angles, had another go this morning with the fuel tank level low- no luck.
Did'nt do this the first two times i changed it. Am i missing something?
Safety Car
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Have done this job a couple of times before and never had this problem.
Had a couple of goes at this now,not getting chance to remove and change the filter- Im getting a constant flow of fuel as soon as i dissconnect one end of the filter, and it does not stop?
Releaved pressure as normal, tried jacking up at diffrent angles, had another go this morning with the fuel tank level low- no luck.
Did'nt do this the first two times i changed it. Am i missing something?
Had a couple of goes at this now,not getting chance to remove and change the filter- Im getting a constant flow of fuel as soon as i dissconnect one end of the filter, and it does not stop?
Releaved pressure as normal, tried jacking up at diffrent angles, had another go this morning with the fuel tank level low- no luck.
Did'nt do this the first two times i changed it. Am i missing something?
Did you remove the gas cap and relieve the pressure at the schader valve ?
Vic
Le Mans Master
Joined: Sep 2003
Posts: 5,874
Likes: 0
From: Littleton CO
When I did mine, I used every pressure-relief trick I could find here at the forum, and it still never really stopped. It took 20-30 minutes for the trickle to become a drip that was slow enough to work around. The amount of fuel lost, however, was not very great - not much more than a cup or so.
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
You can always pull the gas door & boot, pinch off the rubber fuel line exiting the tank.
If the tank is fairly full you will get a siphoning effect... Do the job on an almost empty tank of gas. Then go fill up.
If the tank is fairly full you will get a siphoning effect... Do the job on an almost empty tank of gas. Then go fill up.
Pro
Joined: Apr 2006
Posts: 747
Likes: 0
From: Perth Western Australia
When I did mine, I used every pressure-relief trick I could find here at the forum, and it still never really stopped. It took 20-30 minutes for the trickle to become a drip that was slow enough to work around. The amount of fuel lost, however, was not very great - not much more than a cup or so.
Thread Starter
Instructor
Joined: Oct 2005
Posts: 143
Likes: 0
From: Lincolnshire,ENGLAND
[QUOTE=Vic'89;1559323430]Did you remove the gas cap and relieve the pressure at the schader valve ?[QUOTE=vic'89;1559323430]
Yup
Was a constant flow.
Did want to try this, where is the FP fuse or the relay? couldnt see it in the fues pannel or find the relay anywhere. (1991 L98)
I waited about 10 mins and figured it was probably going to empty the tank before it stopped, so i niped it back up. I'll give it a try.
Pinching the hose at the tank seems a good idea to.
Thank you all for your help
Yup
Was a constant flow.
Did want to try this, where is the FP fuse or the relay? couldnt see it in the fues pannel or find the relay anywhere. (1991 L98)
When I did mine, I used every pressure-relief trick I could find here at the forum, and it still never really stopped. It took 20-30 minutes for the trickle to become a drip that was slow enough to work around. The amount of fuel lost, however, was not very great - not much more than a cup or so.
Pinching the hose at the tank seems a good idea to.
Thank you all for your help
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
Definitely sounds like a siphoning effect and pinching off the rubber fuel line might stop the problem but is a band-aid approach to get by.
I'm willing to bet the check valve down by the fuel pump might be at fault. If defective, it could cause a free flow. This could be the root cause.
I'm willing to bet the check valve down by the fuel pump might be at fault. If defective, it could cause a free flow. This could be the root cause.
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Pro
Joined: Apr 2006
Posts: 747
Likes: 0
From: Perth Western Australia
not sure if a 91 fp fuse is the same as an 87, but mine was in the fuse cluster on the passenger side.... i think it is marked fp.... sorry if im wrong thats just off the top of my head.
running the car till it cuts out will get rid of a lot of fuel left in the lines
running the car till it cuts out will get rid of a lot of fuel left in the lines
Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
The trick is, stuff some rags on either side of the fuel lines so it will absorb the fuel dripping when it starts running down the ouside of the lines, then swap the filter out really quickly. When done, mop up any excess with the rags, then hose it down or let it evaporate off before starting it up. Only takes a few mins if you do it that way 
Last edited by GIJoe; Mar 12, 2007 at 02:24 PM.