Tailspring Stiffener bolt

How to keep the Cessna 170 flying and airworthy.

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Farnold
Posts: 26
Joined: Sun Aug 04, 2002 8:57 pm

Tailspring Stiffener bolt

Post by Farnold »

8O Holy Cow!!
my tailspring stiffener U-bolt, part # 0510000-32 broke for my '52 170B.
I checked with Univair & another source and that little part is $139.00. Now this is absurb! Anyone know of other sources are alternatives as it is really just a u-bolt that is threaded at both ends.
I don't think I can just use 2 straight bolts and 2 plates as the bottom of the tailwheel bracket assembly has 2 rivets that protrude out and I don't think a bottom plate would fit well. At least the locking nuts are only about 20cents each.
Alternatives would be appreciated
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jatkins
Posts: 218
Joined: Mon Nov 18, 2002 7:33 pm

Tailwheel U bolt

Post by jatkins »

Hi,
I recently got a new tail wheel U bolt from Air repair .
http://www.airrepairinc.com. I do not recall the price but
was not ant where nr=ear that price !!

John
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N2255D
Posts: 489
Joined: Wed Apr 24, 2002 3:42 am

Post by N2255D »

I had one manufactured at the machine shop for $50.00 after finding out how much they cost.
Farnold
Posts: 26
Joined: Sun Aug 04, 2002 8:57 pm

tailspring stiffener bolt

Post by Farnold »

I tried to look up the part # earlier on Air Repair and could not find it. Could they have a different # for it then Cessna/Univair?

BTW Univair's price is about 20% higher than others. All are outlandish!

I was fortunate as when I spotted the sheared off bolt/nut, I jacked up the tail and found the Scott T/W to be very loose at the bolt that attaches the T/W to the springs. I could hand remove the nut from the bolt!
A slight disaster was truly avoided. Not sure what I did to do this however. I'll now check the T/W - spring bolt with each pre-flight. I now have a pair of wrenches placed out so I will not have any excuse and won't have to rummage around for the proper wrenches.
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GAHorn
Posts: 20967
Joined: Fri Apr 12, 2002 8:45 pm

Post by GAHorn »

Air Repair specializes in L-19 parts, many of which are identical to 170 parts except for the part number. It's best to just call them on the phone, talk to Pete and let him know what you want. He usually knows the corresponding part. While you're at it, replace that tailwheel attach bolt (AN7-20A) with the eye-bolt that L-19's use (PN 0642105). Makes it a lot easier to tie-down the tail, and it replaces your already stressed bolt with a new one.
'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. ;)
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3993v
Posts: 65
Joined: Tue Dec 10, 2002 8:53 pm

tailspring stiffener bolt

Post by 3993v »

In july of 03 I bought a u-bolt from jta aircraft for 15.00 bucks. There part number is 0642133. They also have the tailwheel attatch eye bolt new old stock for birddogs for 21.00 at that time. That part number is 0642105. http://www.jtaco.com phone 970-221-4230 nick
Farnold
Posts: 26
Joined: Sun Aug 04, 2002 8:57 pm

tailspring stiffener bolt

Post by Farnold »

Thanks for the great tips everyone. I tried AirRepair whom I obtained the eyebolt replacement to ease t/w tiedowns. Replacing that is what started this whole thing. They are shipping one out for $32 or so if I remember correctly. I called them before I saw the tips about jtaco.com.
zero.one.victor
Posts: 2271
Joined: Tue Apr 23, 2002 12:11 am

Re: tailspring stiffener bolt

Post by zero.one.victor »

Farnold wrote:I tried to look up the part # earlier on Air Repair and could not find it. Could they have a different # for it then Cessna/Univair?

BTW Univair's price is about 20% higher than others. All are outlandish!

I was fortunate as when I spotted the sheared off bolt/nut, I jacked up the tail and found the Scott T/W to be very loose at the bolt that attaches the T/W to the springs. I could hand remove the nut from the bolt!
A slight disaster was truly avoided. Not sure what I did to do this however. I'll now check the T/W - spring bolt with each pre-flight. I now have a pair of wrenches placed out so I will not have any excuse and won't have to rummage around for the proper wrenches.
My 1948 IPC shows a self-locking nut at this location. I'm not sure,but I might even have a castelated nut & cotter key on mine. Either way,it shouldn't come loose. Maybe you need a new nut.

Eric
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Blue4
Posts: 225
Joined: Wed Jun 03, 2009 4:58 am

Re: Tailspring Stiffener bolt

Post by Blue4 »

Revive of an old thread to update some information. I needed a U bolt as others did years ago. As of today, for about $58, Air Repair has the L-19 cross of 170B part# 0510000-32, U bolt. The part number is 0642133 in L-19 language. Thanks to Air Repair in Mississippi!

Once again: 0510000-32 = 0642133
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redacted
Posts: 96
Joined: Wed Jun 15, 2022 4:31 am

Re: Tailspring Stiffener bolt

Post by redacted »

Thread update. Air Repair has them, $58.50
Nathaniel Perlman
1952 170B
N2282D S/N 20434
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mit
Posts: 1049
Joined: Wed May 01, 2002 1:54 am

Re: Tailspring Stiffener bolt

Post by mit »

$139 sounds cheap.
Tim
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