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11-06-2018, 02:47 PM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,017
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Intercylinder baffle grommet (ICB)
I'm looking to wrap up my hoses for my IO-360-M1B and I have the Lyco ICB and the specified MS35489-20X grommet (from parts catalog) and TS Flightline -4 fuel hose installed. As you can see I have a 1/2" hose in a 3/4" grommet hole. I'm sure this will whistle pretty good as well as rob me of cooling air. Gooping it up with RTV is sloppy and lazy and not what I want to see. Anyone have a part number for the grommet that works with the -4 hose such as the one shown?
Thanks in advance.
__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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11-06-2018, 08:24 PM
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Join Date: May 2010
Location: Baton Rouge, La.
Posts: 753
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If for some reason you can't find the proper grommet that you need you might want to unhook your fuel line, drop it down (or pull it up...whichever is easiest) and wrap that area of the hose that'll be in the grommet area with a few wraps of silicone tape...you know, the kind that sticks to itself. Then, once you've "thickened up" that area, just work your fuel line back through the grommet. I think that would give you a nice tight fit that would look very neat and clean. Just a thought.
Mark
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11-07-2018, 07:00 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,515
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Quote:
Originally Posted by Mark33
If for some reason you can't find the proper grommet that you need you might want to unhook your fuel line, drop it down (or pull it up...whichever is easiest) and wrap that area of the hose that'll be in the grommet area with a few wraps of silicone tape...you know, the kind that sticks to itself. Then, once you've "thickened up" that area, just work your fuel line back through the grommet. I think that would give you a nice tight fit that would look very neat and clean. Just a thought.
Mark
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Or an extra piece firesleeve with red RTV. And don't forget to seal the perimeter of that baffle it is a huge source of unproductive leaks.
Original MS35489-20X New one from this list.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
Last edited by BillL : 11-08-2018 at 06:59 PM.
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11-07-2018, 01:30 PM
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Join Date: Jun 2012
Location: Frederick, MD
Posts: 819
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Google search for MS35489 silicone grommet. If you know the actual dash number that you want (specifies ID and OD) you add X at the end for silicone.
__________________
Dan Morris
Frederick, MD
PA28-140
Hph 304CZ
RV6 built and sold
N199EC RV6A flying
Learn the facts. "Democracy dies in darkness"
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11-07-2018, 02:35 PM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,017
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Quote:
Originally Posted by RVDan
Google search for MS35489 silicone grommet. If you know the actual dash number that you want (specifies ID and OD) you add X at the end for silicone.
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When I have the time to do the serious Google search, sure. Was hoping someone had a number I can quickly reference to.
__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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11-08-2018, 03:07 PM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,584
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Carlos, it can be sealed with firesleeve tape, or I can send you and extra piece of firesleeve to take up the space. Most of us use a tight grommet, or the firesleeve tape.
Tom
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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11-08-2018, 05:06 PM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,017
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Quote:
Originally Posted by TS Flightlines
Carlos, it can be sealed with firesleeve tape, or I can send you and extra piece of firesleeve to take up the space. Most of us use a tight grommet, or the firesleeve tape.
Tom
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Appreciate the offer Tom but no need. I'll find the right grommet when I have some time to do the search this weekend.
__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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11-09-2018, 07:33 AM
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Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 2,183
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This stuff from ACS works well.
__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, Dual PMags, Vetterman Trombone Exh, SkyTech starter, BandC Alt (PP failed after 226 hrs)
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines (aka Hoser)
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11-09-2018, 07:49 AM
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Join Date: Jul 2008
Location: Prosper, TX
Posts: 373
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Grommet
I just slipped a smaller grommet over the hose, pushed it down so it sits on top of the oversized one in the baffle. Seals up nice and took all of 60 seconds to execute. If you want to get real fancy, smear a bit of RTV on the smaller grommet before you push it down on the hose to "glue" it to the lower grommet in the baffle.
__________________
RV-10 N415JS
Slow build kit #40874
Homebuilt Kit Champion Oshkosh 2019
Atlantic crossings: 2 
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