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  #1  
Old 01-04-2016, 06:36 PM
rvdave rvdave is offline
 
Join Date: Jun 2005
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Default 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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  #2  
Old 01-04-2016, 06:57 PM
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Carl Froehlich Carl Froehlich is offline
 
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Location: Dogwood Airpark (VA42)
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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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  #3  
Old 01-04-2016, 07:24 PM
rvdave rvdave is offline
 
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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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  #4  
Old 01-04-2016, 07:31 PM
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Jesse Jesse is offline
 
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Location: X35 - Ocala, FL
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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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  #5  
Old 01-04-2016, 07:56 PM
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Carl Froehlich Carl Froehlich is offline
 
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Quote:
Originally Posted by rvdave View Post
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?
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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  #6  
Old 01-04-2016, 08:05 PM
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Mel Mel is offline
 
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Location: Dallas area
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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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  #7  
Old 01-04-2016, 08:18 PM
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rleffler rleffler is online now
 
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Location: Delaware, OH (KDLZ)
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Quote:
Originally Posted by rvdave View Post
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.
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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  #8  
Old 01-04-2016, 08:25 PM
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Walt Walt is offline
 
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
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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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  #9  
Old 01-04-2016, 09:44 PM
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Mike S Mike S is offline
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Location: Dayton Airpark, NV A34
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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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  #10  
Old 01-04-2016, 09:48 PM
N427EF N427EF is offline
 
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Posts: 1,516
Default 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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