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dwight(at)openweave.org
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 Posted: Mon May 29, 2006 12:58 pm Post subject: Fuel Line Firewall Penetration Location |
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I have a quick firewall-forward question. I am building an RV7, and DWG-19
shows a suggested location for the firewall penetration for the fuel line.
It shows a gascolator on the engine-side of the firewall in this location.
My installation will be a parallel valve Superior XP-360 with an Airflow
Performance fuel injection system, vertical induction, and NO gascolator.
For those of you who have similar setups (or knowledge of any similar
setups) can you advise as to whether the standard penetration location
is good enough ... or is there a better location based on the equipment
I intend to install? I assume that without a gascolator I should use a
bulkhead fitting at the firewall, and then go with flexible lines from
there (i.e. no solid lines to fatigue when run to an engine that shakes
like a wet dog). Correct?
-- Dwight
do not archive
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Terry Watson
Joined: 09 Jan 2006
Posts: 290
Location: Seattle, WA USA
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| Posted: Mon May 29, 2006 3:58 pm Post subject: Fuel Line Firewall Penetration Location |
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Dwight,
I have a similar engine & fuel injection system I am installing in my RV-8A.
With or without the gascolator (and Airflow Performance doesn't recommend
one), your fuel line is going to go from where it comes through the firewall
to the engine driven fuel pump via a flexible fire-sleeved line, so I would
think that the location shown on the drawings would be about right, if that
works with where you installed the Airflow Performance boost pump. In the
RV-8 there isn't much choice other than lower left side of the footwell for
the boost pump. Maybe there is with the RV-7.
Terry
RV-8A
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Jekyll
Joined: 22 Feb 2006
Posts: 44
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| Posted: Tue May 30, 2006 6:15 am Post subject: Re: Fuel Line Firewall Penetration Location |
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Dwight:
IO-360 firewall penetration location IS DIFFERENT from the O-360 location. Drawing OP-32 shows the correct location and the parts list. The drawing comes with the FWF.
Jekyll
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dwight(at)openweave.org
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| Posted: Tue May 30, 2006 6:55 am Post subject: Fuel Line Firewall Penetration Location |
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Jekyll,
I thought there may well be a difference ... and it is a pity that builders
don't get warned of this until they get the FWF kit.  Thanks for the
heads up!
Is the difference due to a different location of the engine driven fuel
pump? Or is there some other reason? Can you tell me -where- the suggested
location might be? (I've had input from some other folks already, but want
to collect as much information as I can.) Maybe the smart move here would be
for me to order the OP-32 plan sheet from Van's ... even though my need to
otherwise order the FWF kit is months away. (Or maybe I should just order
the darn kit, and be done with it. Choices, choices.)
-- Dwight
do not archive
On Tue May 30 10:15:22 2006, Jekyll wrote :
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Jekyll
Joined: 22 Feb 2006
Posts: 44
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| Posted: Tue May 30, 2006 7:18 am Post subject: Re: Fuel Line Firewall Penetration Location |
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Dwight:
If you are to the point of doing your fuel line passthrough, you are to the point of needing your FWF. It comes with the parts you install on the FW behind the engine such as the heater valve, the master and battery relays and the battery/battery box to name a few.
The engine driven fuel pump is in the same location but you need a different fuel line to accommodate the location. You said you are using a vertical induction IO so, you will be getting O-360 finishing and FWF kits. Email or call Vans for the full list of the FWF parts to allow you to add and delete parts as necessary to adapt the O-360 for a vertical induction IO-360.
You need to delete the gascolator, gascolator bracket. Substitute certain fule lines and throttle cable and throttle bracket.
Jekyll
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Terry Watson
Joined: 09 Jan 2006
Posts: 290
Location: Seattle, WA USA
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| Posted: Tue May 30, 2006 8:22 am Post subject: Fuel Line Firewall Penetration Location |
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Careful, guys. My Superior IO-360-B1B from Aerosport Power is a parallel
valve 180 hp engine with Airflow Performance fuel injection, which I believe
is also called the XP-360. It is confusing but common practice (and correct,
I think) to refer to the heavier angle valve 200 hp IO-360 as the IO-360.
They are different engines and require some different accessories. I have
the OP-32 RV-7 drawing (it came with my FWF kit), which is for the IO-360. I
don't know if the engine-driven fuel pump location is different from my
Aerosport IO-360-B1B, but it looks the same as the drawing.
Terry
Jekyll,
I thought there may well be a difference ... and it is a pity that builders
don't get warned of this until they get the FWF kit. Thanks for the
heads up!
Is the difference due to a different location of the engine driven fuel
pump? Or is there some other reason? Can you tell me -where- the suggested
location might be? (I've had input from some other folks already, but want
to collect as much information as I can.) Maybe the smart move here would be
for me to order the OP-32 plan sheet from Van's ... even though my need to
otherwise order the FWF kit is months away. (Or maybe I should just order
the darn kit, and be done with it. Choices, choices.)
-- Dwight
do not archive
On Tue May 30 10:15:22 2006, Jekyll wrote :
| Quote: |
Dwight:
IO-360 firewall penetration location IS DIFFERENT from the O-360 location.
Drawing OP-32 shows the correct location and the parts list. The drawing
|
comes with the FWF.
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