Hub Thread Cleanup

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Arbs
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Hub Thread Cleanup

Post by Arbs » Sun Jan 29, 2023 7:41 pm

This is probably a trick that many of you know but I'm posting it because it was new to me and worked well. It may help someone else.

I acquired a replacement hub and couldn't get a hub cap to thread onto it.
20230126_205152.jpg
The threads were a bit mangled.
20230126_143005.jpg
One of the club members suggested I use a wheel puller, which I already had, as a thread chaser to clean up the threads. It took a little finagling and steady pressure to get the puller on the threads but once I got it started I was able to tighten it down.
20230126_204457.jpg
Now hub caps thread on like normal...
20230126_203501.jpg
It won't cut new threads but it cleaned these up with just a few minutes of effort.

One word of caution from another club member... If the hub thread chaser has any angle to it, it can damage the good threads. Another option would be to use a thread file. With one of those, you start from the back where the good threads are and they act as a guide to repair the bad threads on the outside end of the hub.
Where is the OBD2 port on this thing?


Dan Hatch
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Re: Hub Thread Cleanup

Post by Dan Hatch » Sun Jan 29, 2023 9:39 pm

Stevens T-181
78786F72-1F32-4B93-9200-4598FB2C4B3C.jpeg
78786F72-1F32-4B93-9200-4598FB2C4B3C.jpeg (65.83 KiB) Viewed 1443 times

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havnfun
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Re: Hub Thread Cleanup

Post by havnfun » Sun Jan 29, 2023 11:55 pm

This tool works fantastic too!
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16EB64A9-1C29-4163-8871-84795AD093A2.jpeg
Regards,
Joe Kowalczyk - 1923 Roadster, 1913 Runabout, 1918 Speedster, 1912 Mother-in-law roadster

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Re: Hub Thread Cleanup

Post by Steve Jelf » Mon Jan 30, 2023 1:00 am

The Stevens T-181 is the tool to have, but it's quite rare and likely to be expensive if you're lucky enough to find it. I hope to make my own version of it, but I haven't got around to it yet.
The inevitable often happens.
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Re: Hub Thread Cleanup

Post by John kuehn » Mon Jan 30, 2023 9:42 am

I used a hub puller and it worked fairly well. I had a hub and looking at it closer I used a wire brush and cleaned it really well. Really cleaning the threads well can help if you don’t a Stevens which lots of us don’t have.

I cringe how overtime Stevens tools were overlooked in old dealerships junk boxes and pitched out and wound up at junkyards. Oh well!!


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Re: Hub Thread Cleanup

Post by Dan Hatch » Mon Jan 30, 2023 11:09 am

Few years ago, Jack made some reproduction T181. They work very good. Don’t think he made but one run due to cost.


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Re: Hub Thread Cleanup

Post by Allan » Mon Jan 30, 2023 8:27 pm

I am fortunate to have found the Stevens tool for the job. Until then, it was a natter of cleaning up the damaged thread with a thread file, chasing from good thread outwards to the damaged area, as previously posted. I would not advise using your wheel puller, until the thread is cleaned up and you are ready to check your work.

Many wheel pullers already have a compromised thread. Using it as a thread chaser will only exacerbate that problem.

Allan from down under.

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Re: Hub Thread Cleanup

Post by JTT3 » Mon Jan 30, 2023 9:56 pm

I like the one Joe pictured, does anyone know the die size needed for a hub? I bought one for the exhaust manifold and it worked well in that application. Best John

Just found it in my files

Courtesy of Peter Kable:
14-24 Bendix cap & mag brass screws
5/16-24 general bolts
3/8 24 Rod and wrist pins bolts.
3/8-16 Some engine block & wheel rim bolts
7/16-14 head stud
7/16-20 tie rod & spring shackles
1/2-20 king pin, main bearing bolts, head light.
9/16-18 steering arm, radius rod, rear spring bracket, camshaft
5/8-18 rear axle
11/16-16 rear spring perch
3/4-14 differential plug,late- square wrench hole
3/4-16 front axle -right and left hand thread.
3/4-24 diff plug early, hex head, pan drain plug
13/16-16 Camshaft -timing gear nut
1-7/8-16 exhaust manifold
1/8-27 pipe oil petcock
13/32-16 tail spoo; -tap
2-1/8-24 wheel hub and cap
Last edited by JTT3 on Mon Jan 30, 2023 10:23 pm, edited 1 time in total.


jab35
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Re: Hub Thread Cleanup

Post by jab35 » Mon Jan 30, 2023 10:19 pm

Original Mag screws and Bendix cover screws are 14-24

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John.Zibell
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Re: Hub Thread Cleanup

Post by John.Zibell » Tue Jan 31, 2023 10:09 am

I have one of these for that job. http://www.modeltford.com/item/2815T.aspx
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Scott_Conger
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Re: Hub Thread Cleanup

Post by Scott_Conger » Tue Jan 31, 2023 10:18 am

John

I bought one of those things years ago and cannot get it to thread onto a good, bad, or indifferent hub. Not sure why, but mine was and still is: useless

perhaps I bought the one dud in the batch
Scott Conger

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Re: Hub Thread Cleanup

Post by speedytinc » Tue Jan 31, 2023 4:15 pm

JTT3 wrote:
Mon Jan 30, 2023 9:56 pm
I like the one Joe pictured, does anyone know the die size needed for a hub? I bought one for the exhaust manifold and it worked well in that application. Best John

Just found it in my files

Courtesy of Peter Kable:
14-24 Bendix cap & mag brass screws
5/16-24 general bolts
3/8 24 Rod and wrist pins bolts.
3/8-16 Some engine block & wheel rim bolts
7/16-14 head stud
7/16-20 tie rod & spring shackles
1/2-20 king pin, main bearing bolts, head light.
9/16-18 steering arm, radius rod, rear spring bracket, camshaft
5/8-18 rear axle
11/16-16 rear spring perch
3/4-14 differential plug,late- square wrench hole
3/4-16 front axle -right and left hand thread.
3/4-24 diff plug early, hex head, pan drain plug
13/16-16 Camshaft -timing gear nut
1-7/8-16 exhaust manifold
1/8-27 pipe oil petcock
13/32-16 tail spoo; -tap
2-1/8-24 wheel hub and cap
Handy thread list.
There is an error regarding the late axle housing drain plug.
The thread is actually 1/2" npt (tapered pipe thread)


Art M
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Re: Hub Thread Cleanup

Post by Art M » Tue Jan 31, 2023 5:45 pm

A 6mm x 1 screw is very close to the number 14 thread used with the starter bendic cover. They will work very well and they are available with a torx head. This makes it easier to install.

I haven't change to these yet.

Art Mirtes

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