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Author Topic: Spitfire hub puller tool - rework
vitesse
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Posts: 36
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Post Spitfire hub puller tool - rework
on: February 22, 2015, 08:49

I've got a hub puller tool for Spitfire and apparently I've been too hard on it as I have gauled up the threads. I was looking online at inserts and the tools required to drill out the existing bolt and install the inserts cost more than a new tool. I don't just want to buy a new tool as I'll probably have the same problem again one day. I'm thinking if there is a machine shop around that could put some keenserts or ACME threaded inserts that would be preferable. Since I live off in the sticks, with no real reputable machine shops in this area, I would need to send this off somewhere. Does anyone have any recommendations for a shop that could fix this for me?
Thanks
Cecil

MGJoe
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Post Re: Spitfire hub puller tool - rework
on: February 23, 2015, 10:10

Consider checking with your O'Reilly Auto store if you have not. I have borrowed the insert kits from them before and only paid for the inserts themselves after I take the kit back. Comes with every thing you need to install them except the drill and ability to figure out the directions. They were a little confusing to me anyway. Getting the tang broke off correctly is the hard part I though. My boo boo threads were SAE as I recall, do not know if they have metric. Lub your threads next time, its less work. Good luck, MGJoe

vitesse
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Post Re: Spitfire hub puller tool - rework
on: February 23, 2015, 17:46

The one detail I neglected is that this is a 3/4-16 thread. I was looking at Keenserts and ACME threaded inserts since I figured they would be more durable than helicoil in an application like this. The drill size for the Keenserts is 1 1/16", which alone is about $70 at one place I checked.

jd
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Post Re: Spitfire hub puller tool - rework
on: February 24, 2015, 21:46

why not just tap it for 1" acme thread? Inserts won't last as long as the parent steel forging.I have seen them shatter from to many blows of a slide hammer.

Just random thoughts of a mad man........

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