Early 110 hub help! - Defender Source
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  #1  
Old September 24th, 2012, 11:05 AM
andy110
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Andy Bard
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Early 110 hub help!

I am in the process of replacing the swivel balls on my salisbury front axle and have run into a problem! Two drive member bolts have snapped off inside my hub!!!! They are snapped off about a 1/4 inch into the bolt hole. Can these be removed by a machine shop or do I need a replacement hub??
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  #2  
Old September 24th, 2012, 11:15 AM
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Bill Adams
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They are 3/8 24 UNF, any machine shop should be able to get those out and clean up all the threads. They're threaded all the way thru except for a short overbore that helps get the bolts started.
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  #3  
Old September 24th, 2012, 11:17 AM
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Quote:
Originally Posted by andy110 View Post
They are snapped off about a 1/4 inch into the bolt hole. Can these be removed by a machine shop or do I need a replacement hub??
With accurate drilling for a pilot hole in the broken off bolt and a bolt extractor and lots of PB blaster, you should be able to get them out. You can also consider drilling them out and re-tapping to a larger size.

Edit: Bill beat me to it.
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  #4  
Old September 24th, 2012, 11:20 AM
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Thanks guys, I'll give that a shot tonight
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  #5  
Old September 24th, 2012, 11:57 AM
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Those bolts are VERY HARD and difficult to drill (assuming they are the same as the later ones). If it were me, I would drop them off at a machine shop and let them deal with it as oppose to struggling and say breaking off an ez out in the bolt.
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Old September 24th, 2012, 12:05 PM
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Ya unless you have a big honking overhead drilling machine with a huge table and a way to precisely line up all the bolt holes yer sunk.
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1966 109 5 door wagon 300Tdi "spermaceti fueled"
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  #7  
Old September 24th, 2012, 12:11 PM
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Plenty of heat and an easy out might help.
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  #8  
Old September 24th, 2012, 01:07 PM
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Quote:
Originally Posted by diesel_jim View Post
Plenty of heat and an easy out might help.
That is what I am going to try, I have a fairly large table top drill press/milling machine and oxy acetylene torch. If it starts to go south I will stop and send it to a machinist. If I destroy it I will be cruising EBay UK.
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  #9  
Old September 24th, 2012, 01:18 PM
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That is what I am going to try, I have a fairly large table top drill press/milling machine and oxy acetylene torch. If it starts to go south I will stop and send it to a machinist. If I destroy it I will be cruising EBay UK.
Pictures?
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  #10  
Old September 24th, 2012, 01:31 PM
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Originally Posted by evilfij View Post
Those bolts are VERY HARD and difficult to drill (assuming they are the same as the later ones). If it were me, I would drop them off at a machine shop and let them deal with it as oppose to struggling and say breaking off an ez out in the bolt.
Or just grab another hub. I wouldn't spend money on something like that. Used hubs are a dime a dozen.
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  #11  
Old September 24th, 2012, 01:57 PM
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Or just grab another hub. I wouldn't spend money on something like that. Used hubs are a dime a dozen.
Are the sals front hubs the same as other hubs? I thought they were different.
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  #12  
Old September 24th, 2012, 02:05 PM
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Pretty sure they are the same from the axle tube out. Is the OP positive it is a Sals axle?
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  #13  
Old September 24th, 2012, 05:52 PM
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Originally Posted by Red90 View Post
Pretty sure they are the same from the axle tube out. Is the OP positive it is a Sals axle?
Yeah, positive, I had it installed in the UK before delivery. Hubs are the same as early 110's. I may just hold off until I score a replacement, but damn I want this thing on the road ASAP
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  #14  
Old September 24th, 2012, 06:49 PM
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That's a pretty badass axle. I'd love a LHD one for the 2A.
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  #15  
Old September 24th, 2012, 07:58 PM
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I drilled out and retaped 3 holes on one of the rear hubs on my NAS axle in situ late last year and then taped them to a US size this past spring. Was off road at RC with a locked rear-end and the stock bolts worked loose and I messed a couple of them up. Then again at RC this spring and the threads just wouldn't hold so went up a size on 3 of them.

Like ron/evilfij said - the bolts are hard but it is doable. One thing I have found with broken hardened bolts and taps is to get a punch of some sort in there and try and break them into smaller pieces. If you have the hub on the bench and with some heat and a drill press, I'd give it a go. Try and use the smallest bit you can and work up from that - go slow and lots of lube.

EDIT/Add-on - If the hub is specific to the Sals axle I'd probably wait and have a machine shop go at it.
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  #16  
Old September 24th, 2012, 08:36 PM
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Quote:
Originally Posted by don View Post
If you have the hub on the bench and with some heat and a drill press, I'd give it a go. Try and use the smallest bit you can and work up from that - go slow and lots of lube.

EDIT/Add-on - If the hub is specific to the Sals axle I'd probably wait and have a machine shop go at it.
take the bearings out and races ...heat that puppy up get yourself some wurth rustoff ice and a ez out
if not you should be able to drill and use a http://timesert.com/ or a keensert
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  #17  
Old September 24th, 2012, 09:21 PM
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Andy, I have a spare that had the same thing happen to one of the bolts. It was tapped out and drilled larger. At any rate if you need it i can bring it down this weekend. Those bolts are grade 10.9 or something so they are indeed very hard.
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  #18  
Old September 25th, 2012, 10:04 AM
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Andy Bard
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Originally Posted by MC22958 View Post
Andy, I have a spare that had the same thing happen to one of the bolts. It was tapped out and drilled larger. At any rate if you need it i can bring it down this weekend. Those bolts are grade 10.9 or something so they are indeed very hard.
Thanks Mike, I think I have it covered, Bill said that he has one he will send me. If that does not work out I may need yours though.
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