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  #1  
Old 09-29-2009, 02:58 PM
cfiidon's Avatar
cfiidon cfiidon is offline
 
Join Date: Apr 2008
Location: California
Posts: 652
Default -8 Fuel Filter Location?

I am installing the AFP fuel pump and filter in my -8 QB. The drawing from Vans shows the filter mounted vertically on the front side of the gear tower (after the fuel selector and before the pump which sounds like a good idea).
Has anyone done something different? I'm thinking ahead to maintenance and condition inspections and want to make access maintenance friendly and not dump a bunch of 100LL in my cockpit.
Any issues with the filter being horizontal, perhaps in the well with the fuel selector? Anyplace else?
The AFP drawing shows the firewall as a secondary location but I don't want to pursue that for heat/vapor lock reasons. Pictures would be great if anyone has gone a different route.
Thanks in advance.
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  #2  
Old 09-29-2009, 03:16 PM
CMW CMW is offline
 
Join Date: Mar 2007
Location: Livermore, CA
Posts: 167
Default

The prepunch fuselage has instructions to mount the filter on the floor in the bay with the fuel selector. I chose to mount it vertically on the forward side of the gear tower because the plumbing seemed cleaner and I think it might be easier to service without spilling 100ll everywhere.

Chris
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RV-8 Wings
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  #3  
Old 09-29-2009, 03:31 PM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
Posts: 1,499
Default Wing root location

Don,
I installed a fuel filter in each wing root. This will allow easy access to the filters during your annual inspection. It will also prevent a "single point" failure due to a clogged filter. Check out the thread below.

http://www.vansairforce.com/communit...LA+fuel+filter

You can see a photo of John Moody's 4ILA wing root installation here.

http://www.rv8.ch/zenphoto/moodyj/IMG_1593.jpg.php

Charlie Kuss

Last edited by chaskuss : 04-18-2012 at 02:01 PM. Reason: Updated photo link per Mickey's post at the bottom of the page
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  #4  
Old 09-29-2009, 05:33 PM
Geoff
 
Posts: n/a
Default On the floor

Quote:
Originally Posted by cfiidon View Post
I am installing the AFP fuel pump and filter in my -8 QB. The drawing from Vans shows the filter mounted vertically on the front side of the gear tower (after the fuel selector and before the pump which sounds like a good idea).
Has anyone done something different? I'm thinking ahead to maintenance and condition inspections and want to make access maintenance friendly and not dump a bunch of 100LL in my cockpit.
Any issues with the filter being horizontal, perhaps in the well with the fuel selector? Anyplace else?
The AFP drawing shows the firewall as a secondary location but I don't want to pursue that for heat/vapor lock reasons. Pictures would be great if anyone has gone a different route.
Thanks in advance.
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  #5  
Old 09-29-2009, 06:25 PM
zman zman is offline
 
Join Date: Jul 2006
Location: San Jose, CA
Posts: 35
Default

Ease of cleaning is everything. I mounted mine on the back of the tower within close prox of the pump....dumb !! I am now in the process of relocating it to the front of the tower or along the center section rib.
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  #6  
Old 09-29-2009, 07:51 PM
cfiidon's Avatar
cfiidon cfiidon is offline
 
Join Date: Apr 2008
Location: California
Posts: 652
Default Coming to Decision

Thanks for the inputs folks. I've got four suggestions 1) vertical gear tower 2) horizontal fuel selector bay 3) horizontal fuel pump bay, and 4) wing root.

Anyone want to be a tie-breaker :-) ?

Actually the inputs are great because at least I know there are other reasonable methods and I'm not doing anything stupid. Thanks for the time and the ideas!

Don
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  #7  
Old 09-29-2009, 08:49 PM
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chrispratt chrispratt is offline
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Join Date: Oct 2005
Posts: 752
Default

Here's mine, under the fuel selector cover. I don't recall Van even having an instruction about fuel filters when I was building, so perhaps I was ahead of my time. Having said that, this location is a pain in the you know what to inspect. I like the idea of mounting two fuel filters, one in each wing root area under the fairing. Should be much easier and neater to access. I definitely would not put it in the location shown again.

http://picasaweb.google.com/pratt.chris401/FuelFilter#

Chris
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RV-8 Flying, 850+hours
N898DK
Lycoming O-360-A1A, Hartzell CS
52F (Northwest Regional, Aero Valley, Whatever, TX)
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  #8  
Old 09-29-2009, 08:57 PM
N427EF N427EF is offline
 
Join Date: Oct 2005
Posts: 1,516
Default wing roots

Don,

Mine are in the wing roots.
Pros: easy to remove, no fuel spills in the cockpit.
Cons: you need 2 of them.

My pump is located to the rear of the gear tower.
Even thought an unprimed AF fuel pump will draw fuel 20 inches uphill
I found that in this location fuel will flood the pump unless the tanks are almost empty. My set up has been flawless for over 400 hours.
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RV-8 finished (sold)
RV-10 Flyer 600 plus hours
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  #9  
Old 09-30-2009, 10:46 AM
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Veetail88 Veetail88 is offline
 
Join Date: Oct 2008
Location: Hales Corners, WI
Posts: 981
Default Near fuel selector

I mounted mine by the fuel selector and moved it out towards the center as far as possible. This way I figure I can kneel on the wing, lean over the canopy rail, slide a little pan under the unit (built an offset in the mount) and service the filter without getting fuel on the floor.

The second photo is before all the fuel lines were mounted.


By veetail88

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  #10  
Old 09-05-2010, 06:37 AM
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rv8ch rv8ch is offline
 
Join Date: Feb 2005
Location: LSGY
Posts: 3,203
Default New location of the photo

Quote:
Originally Posted by chaskuss View Post
Don,
I installed a fuel filter in each wing root. This will allow easy access to the filters during your annual inspection. It will also prevent a "single point" failure due to a clogged filter. Check out the thread below.

http://www.vansairforce.com/communit...LA+fuel+filter

You can see a photo of John Moody's 4ILA wing root installation here.

http://www.rv8.ch/gallery/v/moodyj/IMG_1593.jpg.html

Charlie Kuss
Sorry, had trouble with my "gallery" and switched to Zen Photo: http://www.rv8.ch/zenphoto/moodyj/IMG_1593.jpg.php
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