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01-04-2016, 06:36 PM
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Join Date: Jun 2005
Posts: 434
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Lifting for service bulletin
I borrowed an engine hoist for lifting since I don't have a way of pulling the tail down to perform the nose wheel service bulletin. I'm not sure what the best way is to attach straps to the hook to lift the airframe. Should I use all four corner bolt locations or wrap around angles of engine mount? Should I lift from prop hub? Surely not engine lifting hook points at top of engine! Haven't seen info on this but maybe I missed it.
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Dave Ford
Cadillac, Mi
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01-04-2016, 06:57 PM
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Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,596
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Use tie down straps wrapped around the top of the engine mounts on each side. Use a hoist in front of the engine with the lift arm extending over the engine connected at the end to the straps.
Carl
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01-04-2016, 07:24 PM
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Join Date: Jun 2005
Posts: 434
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By -the top of the engine mounts- are you referring to where the engine meets the mounts, at the engine ears/mount location? Or the firewall bolts?
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Dave Ford
Cadillac, Mi
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01-04-2016, 07:31 PM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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I generally use the engine lift points. If the engine doesn't have them, I put a strap around the prop hub. Make sure the spinner doesn't hit the hoist in any case.
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Jesse Saint
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01-04-2016, 07:56 PM
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Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,596
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Quote:
Originally Posted by rvdave
By -the top of the engine mounts- are you referring to where the engine meets the mounts, at the engine ears/mount location? Or the firewall bolts?
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Wrap the strap around the engine mount weldment (the steel tubing). It is already holding the weight of the engine so it will still hold it when you lift.
Carl
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01-04-2016, 08:05 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,768
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Yes. Use the engine mount weldment itself. I have 2" web strap similar to seat belt webbing that I use. Make at least 2 or 3 loops.
Lifting by the engine itself will work, but there's no need to put that extra stress on the "Lord" mounts.
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Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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01-04-2016, 08:18 PM
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Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,196
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Quote:
Originally Posted by rvdave
I borrowed an engine hoist for lifting since I don't have a way of pulling the tail down to perform the nose wheel service bulletin. I'm not sure what the best way is to attach straps to the hook to lift the airframe. Should I use all four corner bolt locations or wrap around angles of engine mount? Should I lift from prop hub? Surely not engine lifting hook points at top of engine! Haven't seen info on this but maybe I missed it.
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Here's a way without a lift......
This is just a few concrete blocks, 3/4" plywood bolted to a four wheel dolly. You can use a ratcheting tie down, or have somebody hold the tail down a bit while you adjust the tie down. It works quite well.....
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01-04-2016, 08:25 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,686
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Personally I prefer to add some weight to the tail (a few cases of oil on the HS works well) then add some weight to the tie down ring and the nose will pop off the ground.
It may be ok but I'm just not sure the motor mount was designed for that type of load.
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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
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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01-04-2016, 09:44 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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Here is how I do it.
Drilled a hole in the hangar floor under the tail tiedown ring, used an expansion anchor and lag bolt. Short piece of chain so the strap hook can fit into a link.
Then, a ratchet strap.
Result??

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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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01-04-2016, 09:48 PM
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Join Date: Oct 2005
Posts: 1,516
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Engine hoist??
Adding weight to the tail surface is sooooo much easier than fooling with an engine hoist.
Just like Walt said.
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Ernst Freitag
RV-8 finished (sold)
RV-10 Flyer 600 plus hours
Running on E10 mogas
Don't believe everything you know.
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