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07-09-2011, 05:21 PM
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Join Date: Mar 2005
Posts: 48
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Oil Pressure Sender Torque
I have a oil pressure sender which is composed of a asbestos split washer, brass collar which threads into the engine (this with the washer is tightened 135-degrees after contact or finger tight), and the actual brass sender; however, I do not know how much torque I should use for the brass sender unit that threads into the brass collar (already place in the engine case). I purchased this sender from Advanced Flight Systems but I'm sure it is common. Anybody know this sender and the torque? Im not sure I have a chart for brass.
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Mark Lancaster
RV-7A N530L Finish Kit
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07-10-2011, 12:53 AM
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Join Date: Oct 2006
Location: Seattle, wa
Posts: 679
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Get a hose and place it between the engine and the sender. Do not screw the sender into the engine, just ask........... oh wait you can't ask him.... he got killed when his engine quit due to the sender breaking off; pumping all the oil overboard; causing a fire, zero oil pressure, and dynamic engine disassembly.
Certainly someone will chime in within the next 10 minutes saying they screwed it in without a hose and it hasn't broken off........ yet.
Get a hose and it won't break off.
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07-10-2011, 05:58 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,686
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From the description, it sounds like Mark is talking about the oil Temperture probe???
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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
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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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07-10-2011, 06:49 AM
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Join Date: Mar 2005
Posts: 48
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My bad. Yeah, I ment the oil temp probe at the rear of the engine.
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Mark Lancaster
RV-7A N530L Finish Kit
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07-10-2011, 07:40 AM
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Join Date: Jun 2006
Location: 8I3
Posts: 3,564
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Quote:
Originally Posted by asav8tor
Get a hose and place it between the engine and the sender. Do not screw the sender into the engine, just ask........... oh wait you can't ask him.... he got killed when his engine quit due to the sender breaking off; pumping all the oil overboard; causing a fire, zero oil pressure, and dynamic engine disassembly.
Certainly someone will chime in within the next 10 minutes saying they screwed it in without a hose and it hasn't broken off........ yet.
Get a hose and it won't break off.
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Where do you guys get this stuff??? There are engines that have big heavy VDO senders attached directly that don't fail. Jabiru is one engine that comes to mind with the oil pressure sender directly attached.
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Bob Japundza CFI A&PIA
N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
N8155F C150 flying
N7925P PA-24-250 Comanche, restoring
Not a thing I own is stock.
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