Hi ... another question: I am removing the leaf springs and replacing them. In the 170B IPC, ref: Figure 25, #36 ... Channel - Tailwheel spring retainer.
Previous posts have mentioned the need to remove the 4 bolts on each side in order to get the leafs out. What is not mentioned are the two AN3-4A bolts in the vertical part of the retainer. The retainer looks to be one piece, thus 10 bolts that need to be removed? Also, my airplane has the bolts facing aft with the AN365-1032 nuts clearly visible ... backwards to what is shown in the IPC. Figure 29 indicates the same thing and is actually applicable top my aircraft due to Serial number. If I am missing the obvious, apologies ... I do find this interesting though. Safety is driving what I am doing with the airplane. R/Lee
Question re: Leaf Spring Removal
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- Bruce Fenstermacher
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Re: Question re: Leaf Spring Removal
Lee, as I recall any time I removed the springs I removed all the AN-3 bolts. The two that go forward into the fuselage can be gotten too with a long extension through the slots for the rudder cable. You might get away with only loosening these two bolts but I kind of doubt it.
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Bruce Fenstermacher, Past President, TIC170A
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Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
- Lee
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Re: Question re: Leaf Spring Removal
I thought that might be the case, Bruce. Thanks for the info ... should be interesting! R/Lee
- c170b53
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Re: Question re: Leaf Spring Removal
Snap - on 1/4” drive wobble sockets are your friends. 

Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
1953 C170B S/N 25656
02 K1200RS
- Bruce Fenstermacher
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Re: Question re: Leaf Spring Removal
Gearwrench 1/4" drive flex sockets are more friendly at more than half the price.



However I removed the forward two bolts before I owned wobble or flex sockets so I used a plain old Craftsman knuckle, wobble or flex adapter and socket.

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Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
- Lee
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- Joined: Wed Mar 01, 2006 10:26 pm
Re: Question re: Leaf Spring Removal
Thanks, guys ... I have both Snap-On 1/4 " wobble and old Craftsman 3/8" universal which might help. The 1/4" should be fine. Thanks for the heads up, I'll let you all know how this works out. The fun never stops! 

- 4583C
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Re: Question re: Leaf Spring Removal
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- GAHorn
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Re: Question re: Leaf Spring Removal
Here’s the Fig 25 referencing Item 36
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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

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