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RBEmerson
Samba Member
Joined: November 05, 2011
Posts: 2108
Location: SE PA
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 Posted: Sun Sep 26, 2021 9:25 am Post subject: Changing fuel components - relieving pressure |
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I really should know this but,...
When I changed the fuel pump, I was mostly out of the way as the pressurized gas depressurized. NTL lots of gas flying everywhere is bad, bad, bad.
I should replace the gas filter, which is also in the pressurized plumbing, How can I bleed off the pressure more or less safely?
In the past, I've ordered air and fuel filters from The Usual Suspects. Newbie question : is it worth asking the box stores for the filters?
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Lord, give me coffee to change the things I can change, and wine to accept the things I can't change. |
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harvgwen
Samba Member
Joined: February 11, 2021
Posts: 159
Location: British Columbia, Canada
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| Posted: Sun Sep 26, 2021 12:17 pm Post subject: Re: Changing fuel components - relieving pressure |
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From my experience with other vehicles, there are really 2 ways to relieve the fuel pressure. You can cut the power to the fuel pump (eg pull relay or fuse) then start vehicle until it dies (only takes a second or two). The other way is the way you did it, but wrap a cloth around the fitting to catch the fuel.
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1986 Westfalia Vanagon, 2.2 Subaru
British Columbia, Canada |
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dobryan
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Joined: March 24, 2006
Posts: 16501
Location: Brookeville, MD
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danfromsyr
Samba Member
Joined: March 01, 2004
Posts: 15144
Location: Syracuse, NY
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| Posted: Sun Sep 26, 2021 7:12 pm Post subject: Re: Changing fuel components - relieving pressure |
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I too have had a face full of fuel spray on a roadside fuel pump R&R
fwiw the vanagon has a T-fitting in the engine fuel lines as a 'test port' this is iirc 5mm. and will relieve pressure.. but you'll likely lose the fiber washer or small nut in the process so I don't really recommend that.
I carry hose pinch clamps in my travel tool kit..
Link
fwiw I carry 2 of these in my tool kit.. one for each side of a pump or filter.
but the smaller squareish screw down ones are nice and tidy for a tool kit.
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RBEmerson
Samba Member
Joined: November 05, 2011
Posts: 2108
Location: SE PA
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| Posted: Sun Sep 26, 2021 8:38 pm Post subject: Re: Changing fuel components - relieving pressure |
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Darn. Wish I had a pair. In a fit of having a brain burp, I forgot to pack ViceGrips. Not elegant but they would have been a big help.
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Lord, give me coffee to change the things I can change, and wine to accept the things I can't change. |
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danfromsyr
Samba Member
Joined: March 01, 2004
Posts: 15144
Location: Syracuse, NY
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| Posted: Sun Sep 26, 2021 8:57 pm Post subject: Re: Changing fuel components - relieving pressure |
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visegrips (R) are 4sale in every podunk town and truck stop.
maybe not premium branded but better than having none 
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RBEmerson
Samba Member
Joined: November 05, 2011
Posts: 2108
Location: SE PA
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| Posted: Sun Sep 26, 2021 9:06 pm Post subject: Re: Changing fuel components - relieving pressure |
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Um... Haven't been to Welcome, NV, have you. As Podunk as they come, and not a tool for sale. ;)
For anyone heading west, on I50, from Craters of the Moon National Monument, Welcome Station RV Park is a good stop. Nothing extraordinary, but the owners are good folks, and tolerant about vehicle repairs.
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Lord, give me coffee to change the things I can change, and wine to accept the things I can't change. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50337
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| Posted: Sun Sep 26, 2021 11:43 pm Post subject: Re: Changing fuel components - relieving pressure |
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If you have time then just letting the vehicle sit overnight will typically take care of the pressure.
No worry about losing the washer for the tiny bolt on the test port, just loosen the bolt slightly and the pressure will bleed off in a few seconds, and then tighten her back up so you don't forget and leave her loose when you are done and fire the engine back up. |
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djkeev
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Joined: September 30, 2007
Posts: 32582
Location: Reading Pennsylvania
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50337
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| Posted: Mon Sep 27, 2021 1:51 am Post subject: Re: Changing fuel components - relieving pressure |
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| djkeev wrote: |
So many vehicles use our fuel filter that it seems like every major filter brand has them....... often in stock.
Same with Air Filters.
Dave |
Assuming you have converted your '85 and earlier WBXer to the more modern after pump canister filter and scrapped the grossly undersized white cube filter. |
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Abscate
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Joined: October 05, 2014
Posts: 22639
Location: NYC/Upstate/ROW
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| Posted: Mon Sep 27, 2021 3:27 am Post subject: Re: Changing fuel components - relieving pressure |
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Get a pair of needle nose Irwin Vice grips, decent quality, and put a piece of Tyson on each nose. You get a pinch off tool and some spare Tyson in one place
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danfromsyr
Samba Member
Joined: March 01, 2004
Posts: 15144
Location: Syracuse, NY
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| Posted: Mon Sep 27, 2021 5:00 am Post subject: Re: Changing fuel components - relieving pressure |
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What the heck is a 'piece of Tyson'
I googled "Piece of Tyson" and well that wasn't what I was expecting...
though I should have known.
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dobryan
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Joined: March 24, 2006
Posts: 16501
Location: Brookeville, MD
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