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Reload this Page Walbro Install - Retain Foam Sleeve?
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Old 09-22-2009, 02:32 PM   #1
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Walbro Install - Retain Foam Sleeve?
I am putting an LS1 in my car, so I bought my self a Walbro fuel pump due to the higher pressure required (GSS340 is the part number) Anyways the old pump had a foam sleeve on it, and the new pump didn't come with one. When I removed the old sleeve I accidently ripped it and can't reuse it now on the new pump. Do the Walbro or other aftermarket pump even require this? I am assuming it is for cooling when the fuel level gets low or something like that. Any help is greatly appreciated!
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Old 09-22-2009, 03:23 PM   #2
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Re: Walbro Install - Retain Foam Sleeve?
My LT1 car comes with the Walbro style pump...I replaced it with one anyway recently, and I did not need the foam or anything...didn't even have it I don't think. it doesn't sound familiar anyway. I have driven the car to near empty and full with no issues so far, so I believe you will be ok.
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Old 09-22-2009, 11:59 PM   #3
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Re: Walbro Install - Retain Foam Sleeve?
Thanks! If anyone else has any personal experiences though also it'd be much appreciated.
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Old 09-23-2009, 05:26 AM   #4
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Re: Walbro Install - Retain Foam Sleeve?
I always thought it was for noise reduction.

I re-used mine.
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Old 09-23-2009, 08:24 AM   #5
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Re: Walbro Install - Retain Foam Sleeve?
Yea, noise reduction would be its purpose...and if the fuel has ever sat for a while or been old at any point in the cars life, those sleeves tend to be all but falling apart.
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Old 09-23-2009, 02:27 PM   #6
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Re: Walbro Install - Retain Foam Sleeve?
Ah perfect. I'll leave it off then. I prefer a whiney fuel pump anyways lol.
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Old 09-24-2009, 03:34 AM   #7
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Re: Walbro Install - Retain Foam Sleeve?
When I changed my fuel pump on my 87, I don't recall there being a sleeve on the pump. I replaced it with with a Walbro (because I started running nitrous) and it also did not come with a sleeve. Car has been fine this whole time...
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Old 10-04-2009, 03:38 PM   #8
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Re: Walbro Install - Retain Foam Sleeve?
Why take anyone's word for it? Just call Walbro.
Are you sure you have a GENUINE Walbro? There are a lot of knockoff's out there from CHINA. They are real crap!
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Old 10-04-2009, 03:38 PM
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