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Broken Alternator Studs... :-( direct me to info
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wyomingresident
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PostPosted: Sun Oct 23, 2011 6:17 pm    Post subject: Reply with quote

Pascal wrote:
Can you get some vice grips on that stud? If so heat around the stud with a propane torch then grab the stud with the vice grips and try to remove it. Are the any threads left in the other stud hole? it does not look like it from the picture.


I'm hoping to leave the right stud there and only work on the left one.

I'm still bummed, just less bummed. I need to find a battery operated 90 degree drill, a decent bit and the correct easy out.
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Ahwahnee
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PostPosted: Sun Oct 23, 2011 6:33 pm    Post subject: Reply with quote

I once called a shop when I had a broken (non-VW) stud. They quoted me 2 prices to get it out:

If I brought it in now: 20 bucks

If I broke an EZ-Out in it: it will cost whatever it costs (i.e. can't say and it won't be cheap).
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Pascal
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PostPosted: Sun Oct 23, 2011 6:39 pm    Post subject: Reply with quote

[quote="wyomingresident"I'm hoping to leave the right stud there and only work on the left one.[/quote]

So the left stud is broken inside the hole? I've never seen that before. Can you clearly see it in there?
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dobryan
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PostPosted: Sun Oct 23, 2011 6:42 pm    Post subject: Reply with quote

Once you use heat on the stud it will harden it and it is a PITA to drill (if you even can). I learned this the hard way on exhaust studs. I'd try drilling out the flush one with progressively larger drill bits until you can chase the threads and put in a new stud. I bought a right angle drill at Harbor Freight for this purpose. Try twisting out the proud stud with a vice grips or other method and if it beaks off then drill it out. Others swear by (at) welding a nut on the stud but the problem is that if it does not work the stud is hardened and it is much worse from there on. YMMV greatly.
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dhaavers
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PostPosted: Sun Oct 23, 2011 7:01 pm    Post subject: Reply with quote


Link

Picked up couple sets of these after my injector bracket stud went south.
Alaric likes 'em.
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dobryan
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PostPosted: Sun Oct 23, 2011 7:13 pm    Post subject: Reply with quote

dhaavers wrote:

Link

Picked up couple sets of these after my injector bracket stud went south.
Alaric likes 'em.


I borrowed Alaric's set to do some exhaust studs and they were the bomb! Highly recommended to center that crucial first drill pass.
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wyomingresident
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PostPosted: Sun Oct 23, 2011 7:15 pm    Post subject: Reply with quote

wyomingresident wrote:
Pascal wrote:
Can you get some vice grips on that stud? If so heat around the stud with a propane torch then grab the stud with the vice grips and try to remove it. Are the any threads left in the other stud hole? it does not look like it from the picture.


I'm hoping to leave the right stud there and only work on the left one.

I'm still bummed, just less bummed. I need to find a battery operated 90 degree drill, a decent bit and the correct easy out.


Correction: I'm hoping to leave the intact- left one there and only work on the broken right one. Yes the stud is broken off 3 or so mms down in there.

Aaarrrggghhh!
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insyncro
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PostPosted: Mon Oct 24, 2011 8:09 am    Post subject: Reply with quote

I have a Snap On extractor set.
It has removed 100% of all broken bolts I have had to extract.

Left handed drill bits are the key Exclamation

Use a center punch to make sure you start in the center of the stud and not get off track.
Use cutting oil and keep cleaning the hole to remove all fragments.

Good luck
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vanagonjr
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PostPosted: Mon Oct 24, 2011 9:30 am    Post subject: Reply with quote

insyncro wrote:
Left handed drill bits are the key Exclamation


Great info Dylan!! Can you receommend a set and source?
I bought the screw extractor kit referenced above for future use, might as well get the left handed bits in advance of my exhaust work!
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wyomingresident
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PostPosted: Mon Oct 24, 2011 4:43 pm    Post subject: Reply with quote

insyncro wrote:
I have a Snap On extractor set.
It has removed 100% of all broken bolts I have had to extract.

Left handed drill bits are the key Exclamation

Use a center punch to make sure you start in the center of the stud and not get off track.
Use cutting oil and keep cleaning the hole to remove all fragments.

Good luck


I borrowed a nice right angle drill from a friend. I had a small cobalt bit and despite the center punch, couldn't keep the drill on track. I was afraid I was catching the block and stopped.

I replaced one of the studs and put it all together again.

How long will it last? I'd like to add the GoWesty Alternator bracket to help solid things up, but there are no holes where it should go.

I guess I'd have to bring it to a shop to get the spots drilled out.

Thoughts?
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insyncro
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PostPosted: Mon Oct 24, 2011 5:27 pm    Post subject: Reply with quote

vanagonjr wrote:
insyncro wrote:
Left handed drill bits are the key Exclamation


Great info Dylan!! Can you receommend a set and source?
I bought the screw extractor kit referenced above for future use, might as well get the left handed bits in advance of my exhaust work!


The complete Snap On kits come with the bits and extractors.

I have different sets of of drill bits for many different purposes.
All Snappy.
They are replaced regularly by my Rep without question Exclamation
Tough little buggers, but they have a tough job and limited life.
The fresher the better in my experiences.
That goes for the bit and extractor.
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Pascal
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PostPosted: Mon Oct 31, 2011 3:49 pm    Post subject: Reply with quote

vanagonjr wrote:
insyncro wrote:
Left handed drill bits are the key Exclamation


Great info Dylan!! Can you receommend a set and source?


I bought my left handed cobalt drill bits from McMaster Carr. I could not find any locally.
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