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hotwheels
Joined: 01 Jun 2007
Posts: 240
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 Posted: Sun Nov 02, 2008 6:22 am Post subject: Source for high temp red silicone grommets? |
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A high temp red silicone grommet is used around the fuel hose that traverses through the intercylinder cooling baffle between the upper fuel injection spider and the lower servo body. My engine started out life as an O-540, so I get to drill a baffle hole and somehow obtain the proper grommet.
Checking the list of usual suspects (Spruce, Wicks, google, etc) wasn't very fruitful. Searching the Lyco parts manual didn't turn up a part number either (unless I missed it). Does anyone know where high temp grommets can be found?
Thanks in advance for any replies. Handy grommet doc is attached.
Cheers,
Jay
FWF stuff while procrastinating on door fitting
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Kellym
Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ
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| Posted: Sun Nov 02, 2008 7:00 am Post subject: Source for high temp red silicone grommets? |
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I don't have 6 cyl parts manual, but for the 4 cyl engines it is an
AN931-12S17 grommet. Suspect the 6 cyl injected engines use same
grommet. MS35489 is the correct replacement number. Genuine Hardware
lists them in their catalog. You will need to know inside diameter
needed and groove width needed. (pg 182-183 in the catalog I have).
jbrinkmeyer wrote:
| Quote: |
A high temp red silicone grommet is used around the fuel hose that traverses through the intercylinder cooling baffle between the upper fuel injection spider and the lower servo body. My engine started out life as an O-540, so I get to drill a baffle hole and somehow obtain the proper grommet.
Checking the list of usual suspects (Spruce, Wicks, google, etc) wasn't very fruitful. Searching the Lyco parts manual didn't turn up a part number either (unless I missed it). Does anyone know where high temp grommets can be found?
Thanks in advance for any replies. Handy grommet doc is attached.
Cheers,
Jay
FWF stuff while procrastinating on door fitting
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 11750#211750
Attachments:
http://forums.matronics.com//files/grommets_ms35489_148.pdf
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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
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hotwheels
Joined: 01 Jun 2007
Posts: 240
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| Posted: Mon Nov 03, 2008 9:22 am Post subject: Re: Source for high temp red silicone grommets? |
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Red high temp silicone grommet for intercylinder baffle fuel hose...
Referencing the Lyco IO-540 Parts Manual pg 3-9: AN931-12S17 Grommet 3/4 ID x 1-3/8 OD x 3/8 thick.
A bit of research turned up AN931-12S17 is superseded by: MS35489-20X
The part was difficult to find and scarce at a reasonable price. The best of the bunch was Broadies Aircraft out of Texas (~$18 each):
http://www.broadiesaircraft.com/shop/search.asp?lookup=MS35489-20X
Regards,
Jay
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