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07-20-2013, 01:32 PM
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Join Date: Jan 2006
Posts: 934
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IO-360-M1 exhaust gasket (XP-360)
For the engine wizards, I'm trying to determine the right exhaust gasket for my Superior IO-360-M1. I pulled the aft exhaust pipes to fix a small leak and it appears that the gaskets I pulled off were the Rapco RA970, which are supposedly Continental parts with a 1.5" internal diameter. According to the tables I can find it appears that the SL77611 part with in internal diameter of 1.75" may be the right gasket. I'm wondering if I had the smaller/ incorrect gasket on there from the beginning?
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07-20-2013, 02:34 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Superior doesn't install the exhaust system, that's an owner installed item, so the responsibilty for that error lies with the installer.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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07-20-2013, 02:38 PM
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Join Date: Jan 2006
Posts: 934
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There's no disagreement on who installed the parts (that I know), I'm just looking for the verification on the correct part number. From what I can tell, I believe it should be the 77611.
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07-20-2013, 03:21 PM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,516
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Quote:
Originally Posted by Walt
Superior doesn't install the exhaust system, that's an owner installed item, so the responsibilty for that error lies with the installer.
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What? . . . .
My AWI system just arrived, it has 1.75" tubes, and it came with RA-77611 gaskets for an IO-360 M1B. I have not trial fitted the system but can check the fit with the port if you need that.
__________________
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.”
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07-20-2013, 03:26 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Lyc PN: 65321, which is RA77611 or RA75118
Don't forget continental also makes an IO360 which is probably where the confusion came from, it uses the OEM PN 630365.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
Last edited by Walt : 07-20-2013 at 03:32 PM.
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07-20-2013, 04:21 PM
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Join Date: Jan 2006
Posts: 934
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Thanks guys, yes, the RA970 appears compatible with the Continental IO-360. Not sure exactly where those gaskets came from, as I did find a brand new spare set of 77611 gaskets here! We pulled the #3 jug a couple years ago for some glazing, and I suspect we may have pulled the wrong gaskets at the shop.
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