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02-24-2013, 08:57 PM
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Join Date: Mar 2009
Location: Plano, TX
Posts: 2,090
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Engine Oil Return Port Options
In prep for my AntiSplat Aero separator that is en-route I have spent the last few days trying to remove the plug from my return port. I have been soaking it multiple times per day with liquid wrench and have tried moderate heat and a large breaker bar. I haven't been able to budge that plug. I left the allen socket in place since it amazingly hasn't stripped yet.
So, assuming I won't be able to get this thing out, is there any reason I shouldn't drill and tap the governor drive blockoff plate and use that instead? I don't have the drive adapter installed so it is just an open hole with the cover removed.

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Colin P.
RV-6A #20603
Complete 5/10/19
PP SEL / A&P
I donate every year on my B-Day (in Dec), but donated early in Sep'19.
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02-24-2013, 09:39 PM
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Join Date: Nov 2010
Location: West Linn, Oregon
Posts: 1,351
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I had a VERY hard time getting that port opened myself for the same need. I got a good size propane torch from Home Depot and flamed it for 2-3 minutes and it came out super easy. So my recommendation is to try a larger torch. A small bench top super cigarette lighter won't do it. I used this one http://m.homedepot.com/p/Bernzomatic...879/203368720/
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CharlieWaffles - But you can call me " Mark"
RV-10
N928MT
Flying - AKA Still Tinkering
Build Project Site
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02-24-2013, 09:57 PM
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Join Date: Sep 2007
Location: WA
Posts: 988
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Set a heat gun on it for a few minutes...
A bit less stressful than using an open flame... Try setting a heat gun on it for a few minutes.
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Stephen
RV7 powered by a lycoming thunderbolt IO-390
turning a whirlwind HRT prop
with more hours flying than building... 2,430 on the hobbs!
ORCA Flight
Race 771
margarita!
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02-25-2013, 05:09 AM
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Join Date: Mar 2009
Location: Plano, TX
Posts: 2,090
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Quote:
Originally Posted by schristo@mac.com
A bit less stressful than using an open flame... Try setting a heat gun on it for a few minutes.
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I have already tried the heat gun approach set on high. I'll give it another shot and let it run longer. If that doesn't work I'll move up to the torch.
Any thoughts on adding a port to the cover as a last resort?
__________________
Colin P.
RV-6A #20603
Complete 5/10/19
PP SEL / A&P
I donate every year on my B-Day (in Dec), but donated early in Sep'19.
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02-25-2013, 07:25 AM
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Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,005
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Plug
As a last ditch option, you could drill & tap a pipe thread into the prop governor cover plate.
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Ralph
built a few RVs, rebuilt a few more, hot rodded some, & maintained/updated a bunch more
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02-25-2013, 12:00 PM
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Join Date: Dec 2005
Location: Sweden, 67" North
Posts: 68
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Use some screwgrabber on the allen socket before it is to late, just in case 
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Dennis Isaksson
G?llivare, Sweden
Grew up with an RV-4, SE-XIO
Now: RV-8, Showplanes Fastback. #83218 Under construction, SE-XXO
Engine and avionic installation in progress
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02-26-2013, 04:45 AM
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Join Date: Mar 2009
Location: Plano, TX
Posts: 2,090
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[Thank you very much for all the input. I'll give it another go when I get home today and see what happens.
__________________
Colin P.
RV-6A #20603
Complete 5/10/19
PP SEL / A&P
I donate every year on my B-Day (in Dec), but donated early in Sep'19.
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02-26-2013, 04:54 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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I know it's scary to break out the torch but that's what you need here, even the best heat gun won't cut it for this task 
__________________
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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02-26-2013, 05:50 AM
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Join Date: Mar 2009
Location: Plano, TX
Posts: 2,090
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Quote:
Originally Posted by Walt
I know it's scary to break out the torch but that's what you need here, even the best heat gun won't cut it for this task 
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Yeah, I guess it is about time to break out the big guns. I was more worried about hurting something else near by like the engine mout rubber. I'll throw some scrap aluminum around the area to keep the direct heat away from the important bits and see what happens.
__________________
Colin P.
RV-6A #20603
Complete 5/10/19
PP SEL / A&P
I donate every year on my B-Day (in Dec), but donated early in Sep'19.
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02-26-2013, 07:48 AM
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Join Date: Feb 2006
Location: George West, TX
Posts: 567
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Colin, I ran into the exact same problem and have decided to tee into the oil return line under the #3 cylinder.
I don't want to fight that plug anymore.
Cheers,
__________________
Deal Fair
RV-4 (N34CB)
George West, TX (8T6)
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