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sarg314(at)gmail.com
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 Posted: Sat Oct 24, 2009 6:56 am Post subject: fuel line routing |
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I planned a route for the fire-sleeved fuel line to my AFP divider on top of the engine, which penetrates the cooling baffle through a large grommet. I'm wondering now if the grommet can take the high temperatures in there in the 10 minutes after engine shutdown.
I note that when Bart L. delivered the engine to me he had the fuel line penetrating the intercylinder baffle through a grommet (he didn't know I was going to use a crossover exhaust, so I had to re-plumb it to keep it away from the exhaust) so I guess that's where I got the idea. But now I'm wondering....
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Tom Sargent, RV-6A, final assembly.
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recapen(at)earthlink.net
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| Posted: Sat Oct 24, 2009 7:19 am Post subject: fuel line routing |
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I've done this with my 6A and SJ cowl/plenum and have two of these grommets.
Pictures seperately - and to others that ask for them......
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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 25858
Location: Livermore CA USA
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| Posted: Sat Oct 24, 2009 8:32 am Post subject: fuel line routing |
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At 07:54 AM 10/24/2009 Saturday, you wrote:
| Quote: | I planned a route for the fire-sleeved fuel line to my AFP divider on top of the engine, which penetrates the cooling baffle through a large grommet. I'm wondering now if the grommet can take the high temperatures in there in the 10 minutes after engine shutdown.
I note that when Bart L. delivered the engine to me he had the fuel line penetrating the intercylinder baffle through a grommet (he didn't know I was going to use a crossover exhaust, so I had to re-plumb it to keep it away from the exhaust) so I guess that's where I got the idea. But now I'm wondering....
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Tom Sargent, RV-6A, final assembly.
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Hi Tom,
Attached are a couple of pictures of how I routed mine. I've got the 4-into-4 exhaust from Vetterman. The fuel from the TB to the distributor doesn't even come close to the exhaust. I would assume that the grommet comes with the Lycoming inter-baffle kit and is designed to handle the temps in that region. If you hear otherwise from Bart or some other authoritative source, be sure to post it to the List.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
Final Finishing Touches To FWF...
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Bret Smith
Joined: 09 Jan 2006
Posts: 178
Location: Mineral Bluff, GA
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| Posted: Sat Oct 24, 2009 9:19 am Post subject: fuel line routing |
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I wondered the same thing but was told the grommet I received from AFP was a high-temp grommet designed for these high temps. 100+ hrs so far and no problems yet.
Bret Smith
RV-9A N16BL
Blue Ridge, GA
www.FlightInnovations.com
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