walbro fuel pump question
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
walbro fuel pump question
When I put the Walbro in, I joined the new fuel pump with the factory rubber piece that goes between the pump and the feed line.
Do most of you, or should I eliminate this rubber piece and put a tube in place of this stock fuel pump rubber part?
Do most of you, or should I eliminate this rubber piece and put a tube in place of this stock fuel pump rubber part?
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: walbro fuel pump question (ld85)
That factory rubber piece is the pulsation dampener.
Most, including myself, eliminate the pulsation dampener and use the hose and clamps supplied in the kit.
It is widely believed that the pulsation dampener will leak.
Tom Piper
Most, including myself, eliminate the pulsation dampener and use the hose and clamps supplied in the kit.
It is widely believed that the pulsation dampener will leak.
Tom Piper
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Re: walbro fuel pump question (Tom Piper)
Tom, thats what Ol'RJ told me but I got the unit used but not used before and there were no other parts to go with the pump.
So I thought this week I would pull the fuel pump and replace this part,, any thoughts on what I could use in place of the rubber piece, just maybe fuel line hose and SS clamps?
So I thought this week I would pull the fuel pump and replace this part,, any thoughts on what I could use in place of the rubber piece, just maybe fuel line hose and SS clamps?
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: walbro fuel pump question (ld85)
Tom, thats what Ol'RJ told me but I got the unit used but not used before and there were no other parts to go with the pump.
So I thought this week I would pull the fuel pump and replace this part,, any thoughts on what I could use in place of the rubber piece, just maybe fuel line hose and SS clamps?
So I thought this week I would pull the fuel pump and replace this part,, any thoughts on what I could use in place of the rubber piece, just maybe fuel line hose and SS clamps?
:iagree: That should work...
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: walbro fuel pump question (ld85)
any thoughts on what I could use in place of the rubber piece, just maybe fuel line hose and SS clamps?
Make sure it is high-pressure fuel line hose and some stainless steel clamps.
Tom Piper
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: walbro fuel pump question (Tom Piper)
Ahhhhhh :confused:
I just reused the rubber thingy with the vibration dampener. I figured if I would eliminate it I might get a hammering sound when pressure was decreased or increased. FP is fine with it now. Guess either way will work.
:cheers:
I just reused the rubber thingy with the vibration dampener. I figured if I would eliminate it I might get a hammering sound when pressure was decreased or increased. FP is fine with it now. Guess either way will work.
:cheers:
Drifting
Joined: Jun 2001
Posts: 1,704
Likes: 459
From: Mass Mass
Re: walbro fuel pump question (ld85)
A few months after I installed my Walbro, with the pulsator, the fuel line pressure would bleed away after a few hours after I shut the engine down.
I have a permenent guage on the fuel rail.
New injectors and no smell of gas in the manifold.
Eventually pulled the pump back out and replaced the pulsator with a short rubber fuel line and the problem was gone.
No noticable noise difference with it out.
[Modified by SuperL98, 1:24 PM 7/9/2003]
[Modified by SuperL98, 8:17 PM 7/12/2003]
I have a permenent guage on the fuel rail.
New injectors and no smell of gas in the manifold.
Eventually pulled the pump back out and replaced the pulsator with a short rubber fuel line and the problem was gone.
No noticable noise difference with it out.
[Modified by SuperL98, 1:24 PM 7/9/2003]
[Modified by SuperL98, 8:17 PM 7/12/2003]
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: walbro fuel pump question (SuperL98)
I will have to watch my bleedoff rate. When I was putting it back together I even thought to myself. Hmmmm, what are the chances that will need taken apart again in about a weeks time for something? Didn't even take 24hrs :(
My pressure even with the stock pump held over night most of the time. So I suspect the seal was good. Lets hope it stays as good with this one.
My pressure even with the stock pump held over night most of the time. So I suspect the seal was good. Lets hope it stays as good with this one.
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