Walbro fuel pump installation
06-24-2003, 11:40 PM
#1
Walbro fuel pump installation
I just got a walbro 190/lph fuel pump (GSS 250) installed and I have a few things that I would like to run by everybody:
First - the pump is way too long (about a quarter of an inch longer than stock (even trimmed). I've trimmed the tabs on the top of the pump till it was flush with the top and the fuel pump bracket still didn't fit on. At that point I took out the upper fuel pump seal (the rubber one that goes over the pump outlet on top) and trimmed "the ledge" off of it and that gave enough clearance on the bottom for the bracket to snap in place, the only problem is that I was unable to fit the lower fuel pump support rubber between the pump and the bracket... didn't seem too important at the time so it found a new home in my parts bin. After that everything fit together fairly well.
Now that the pump is working my only complaint so far is how incredibly noisy the pump is, especially from outside of the car... It is almost as loud as my intake noise at idle, but from what I've heard that's typical of walbro pumps and I'm not too worried about it.
Overall the installation was significantly more involved that people around here made me believe but still not all that bad. And those "quick" disconnects inside the pump where an amazing pain in the ***.
Max
First - the pump is way too long (about a quarter of an inch longer than stock (even trimmed). I've trimmed the tabs on the top of the pump till it was flush with the top and the fuel pump bracket still didn't fit on. At that point I took out the upper fuel pump seal (the rubber one that goes over the pump outlet on top) and trimmed "the ledge" off of it and that gave enough clearance on the bottom for the bracket to snap in place, the only problem is that I was unable to fit the lower fuel pump support rubber between the pump and the bracket... didn't seem too important at the time so it found a new home in my parts bin. After that everything fit together fairly well.
Now that the pump is working my only complaint so far is how incredibly noisy the pump is, especially from outside of the car... It is almost as loud as my intake noise at idle, but from what I've heard that's typical of walbro pumps and I'm not too worried about it.
Overall the installation was significantly more involved that people around here made me believe but still not all that bad. And those "quick" disconnects inside the pump where an amazing pain in the ***.
Max
06-24-2003, 11:59 PM
#2
Must be a 5th gen thing then. The pump R&R took me 45 mins with the help of a friend, and the Walbro fits like a stock replacement in the 4th gen. The pump is kinda noisy, but I can live with it; something usually has to give.
-hype
-hype
06-25-2003, 09:13 AM
#4
Originally posted by 1MAX2NV
On the 4th gen..it's plug and play. Mine is super loud too. It almost sounds like an exhaust leak.
On the 4th gen..it's plug and play. Mine is super loud too. It almost sounds like an exhaust leak.
-hype
07-02-2003, 04:19 PM
#5
Senior Member
Join Date: Jan 2002
Posts: 211
Re: Walbro fuel pump installation
Originally posted by Maksim2000
I just got a walbro 190/lph fuel pump (GSS 250) installed and I have a few things that I would like to run by everybody:
First - the pump is way too long (about a quarter of an inch longer than stock (even trimmed). I've trimmed the tabs on the top of the pump till it was flush with the top and the fuel pump bracket still didn't fit on. At that point I took out the upper fuel pump seal (the rubber one that goes over the pump outlet on top) and trimmed "the ledge" off of it and that gave enough clearance on the bottom for the bracket to snap in place, the only problem is that I was unable to fit the lower fuel pump support rubber between the pump and the bracket... didn't seem too important at the time so it found a new home in my parts bin. After that everything fit together fairly well.
Now that the pump is working my only complaint so far is how incredibly noisy the pump is, especially from outside of the car... It is almost as loud as my intake noise at idle, but from what I've heard that's typical of walbro pumps and I'm not too worried about it.
Overall the installation was significantly more involved that people around here made me believe but still not all that bad. And those "quick" disconnects inside the pump where an amazing pain in the ***.
Max
I just got a walbro 190/lph fuel pump (GSS 250) installed and I have a few things that I would like to run by everybody:
First - the pump is way too long (about a quarter of an inch longer than stock (even trimmed). I've trimmed the tabs on the top of the pump till it was flush with the top and the fuel pump bracket still didn't fit on. At that point I took out the upper fuel pump seal (the rubber one that goes over the pump outlet on top) and trimmed "the ledge" off of it and that gave enough clearance on the bottom for the bracket to snap in place, the only problem is that I was unable to fit the lower fuel pump support rubber between the pump and the bracket... didn't seem too important at the time so it found a new home in my parts bin. After that everything fit together fairly well.
Now that the pump is working my only complaint so far is how incredibly noisy the pump is, especially from outside of the car... It is almost as loud as my intake noise at idle, but from what I've heard that's typical of walbro pumps and I'm not too worried about it.
Overall the installation was significantly more involved that people around here made me believe but still not all that bad. And those "quick" disconnects inside the pump where an amazing pain in the ***.
Max
07-07-2003, 04:17 PM
#7
Senior Member
Join Date: Jan 2002
Posts: 211
Originally posted by SonicDust187
Did the fuel pressure change after installation of the pump? What should the pressure read at wot?
Did the fuel pressure change after installation of the pump? What should the pressure read at wot?
07-10-2003, 04:42 AM
#11
Originally posted by roastduck88
Hm.. I don't know. How much did the fuel pressure go up by at idle? I'm thinking of getting a FPR also to control the FP but I'm not sure if it's really necessary.
Hm.. I don't know. How much did the fuel pressure go up by at idle? I'm thinking of getting a FPR also to control the FP but I'm not sure if it's really necessary.
07-13-2009, 05:27 PM
#14
ok quick question...i put the 255hp in my 4th gen and now its very difficult to start mainly after its warm....im assuming the fuel pressure at idle went up b/c when i tried to start it it just sounds flooded and i sometimes have the mess the the gas pedal to get it to crank up.... any input?
07-21-2009, 12:38 PM
#15
ok quick question...i put the 255hp in my 4th gen and now its very difficult to start mainly after its warm....im assuming the fuel pressure at idle went up b/c when i tried to start it it just sounds flooded and i sometimes have the mess the the gas pedal to get it to crank up.... any input?
Last edited by Tmars; 07-21-2009 at 12:40 PM.
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