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> What is the proper Head Stud extraction tool? - Now to reinstall them.
stugray
post Nov 10 2012, 12:26 AM
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I have tried a couple of methods for removing the head studs from the case.
Double Nut rarely works.
I bought the NAPA stud removal tool, and while it is the perfect tool when you have room, it does not work in such tight areas as our middle head studs.

I looked for all kinds of "stud removal tools", but most of them are for broken studs, not for removing studs without 'munging up' the threads.

What does everyone else use?

A search does not turn up a simple 10mm stud extractor that wont tear up the threads.

Stu
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SLITS
post Nov 10 2012, 06:28 AM
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Collet stud extractor ... about $250 from SnapOn + the inserts for each size bolt.
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Jon H.
post Nov 10 2012, 06:33 AM
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A few cheaper options; still Snap-on though

http://buy1.snapon.com/catalog/tools.asp?t...re=snapon-store
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SLITS
post Nov 10 2012, 06:52 AM
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Those will still chew up the studs / ruin the threads.

Collet Stud Extractor Set

I was only $600 off (IMG:style_emoticons/default/sad.gif) (IMG:style_emoticons/default/sad.gif)

though you can purchase the collet holder and then add for the metric stud thread size you want. I've used one for removal and installation (no I don't own one, I borrow it).
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bulitt
post Nov 10 2012, 07:24 AM
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Maybe this set from Summit (IMG:style_emoticons/default/confused24.gif)
Metric Stud Remover Set.
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bam914
post Nov 10 2012, 07:49 AM
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Every time I have done it, which is a lot, I use the double nut method and an impact gun. If they are stubborn I will heat the block up around the stud. There have been only two studs out of over a hundred that I have not been able to get out.
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mrbubblehead
post Nov 10 2012, 08:49 AM
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QUOTE(bam914 @ Nov 10 2012, 06:49 AM) *

Every time I have done it, which is a lot, I use the double nut method and an impact gun. If they are stubborn I will heat the block up around the stud. There have been only two studs out of over a hundred that I have not been able to get out.

(IMG:style_emoticons/default/agree.gif)

two nuts and a mapp torch....
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DBCooper
post Nov 10 2012, 10:46 AM
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Heat and an impact wrench.
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McMark
post Nov 10 2012, 10:52 AM
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(IMG:style_emoticons/default/agree.gif) No special tools needed.
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patssle
post Nov 10 2012, 10:55 AM
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I had to take out 2 studs for my engine mount on my /6 because they were bent. PBlaster, vice grips, and a torch did the job. Using new bolts instead of studs to mount the mount.
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Jon H.
post Nov 10 2012, 11:13 AM
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QUOTE(SLITS @ Nov 10 2012, 04:52 AM) *

Those will still chew up the studs / ruin the threads.

Collet Stud Extractor Set

I was only $600 off (IMG:style_emoticons/default/sad.gif) (IMG:style_emoticons/default/sad.gif)

though you can purchase the collet holder and then add for the metric stud thread size you want. I've used one for removal and installation (no I don't own one, I borrow it).

The $84-90 dollar ones slide down past the threads and grab the shaft not the threads.
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SLITS
post Nov 10 2012, 01:02 PM
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QUOTE(Jon H. @ Nov 10 2012, 09:13 AM) *

QUOTE(SLITS @ Nov 10 2012, 04:52 AM) *

Those will still chew up the studs / ruin the threads.

Collet Stud Extractor Set

I was only $600 off (IMG:style_emoticons/default/sad.gif) (IMG:style_emoticons/default/sad.gif)

though you can purchase the collet holder and then add for the metric stud thread size you want. I've used one for removal and installation (no I don't own one, I borrow it).

The $84-90 dollar ones slide down past the threads and grab the shaft not the threads.


Yeah, so marks in the shaft don't count I take it. It has to grip a smooth surface somehow and the pictures show what amounts to a knurling device.

Oh well ...
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preach
post Nov 10 2012, 02:33 PM
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Perhaps not best used in this case but figured I would share.

At work I have a set of vicegrips with nuts welded to the jaws. A hacksaw through the nut and you have yourself a very nice, non-marring set of stud removal/installation tools.

I have 1/4-20 through 1"-8.

Make a metric set and enjoy.
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stugray
post Nov 10 2012, 03:06 PM
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QUOTE
A hacksaw through the nut and you have yourself a very nice, non-marring set of stud removal/installation tools.

I wish you had a picture. I cant visualize what you are saying, but I have plenty of old vise grips and a welder....

QUOTE
The $84-90 dollar ones slide down past the threads and grab the shaft not the threads.


That is what I have but since it can accommodate many sizes of studs, it is too bulky to be of use on the inner studs. It is about as big around as a beer can.

Stu
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preach
post Nov 10 2012, 03:21 PM
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QUOTE(stugray @ Nov 10 2012, 04:06 PM) *

QUOTE
A hacksaw through the nut and you have yourself a very nice, non-marring set of stud removal/installation tools.

I wish you had a picture. I cant visualize what you are saying, but I have plenty of old vise grips and a welder....



No camera phones at work allowed.

Just clamp a nut near the tip of the jaws, weld it to the jaws, cut the nut in half with the jaws, clamp onto stud. Easy.

EDIT: I put a bolt in the nut before I weld so slag does not get into the threads of the nut.

These take a second to get used to, but once you use them you will feel the stud threads either engage with the nut or not. Make sure they engage.

You can clamp onto the stud pretty darn good with them.
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stugray
post Nov 11 2012, 02:36 PM
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Well thanks for the info!

The stud tool works, but cannot get on the inner studs.
So I used the 2 nut method & some pen. oil & heat and was eventually able to get them all out.
However it was a BITCH! I have put less torque on much larger stuff than it took to break these loose.
While I was removing the studs and cleaning them I smelled "Black Walnuts".
Some hardcore mech-heads will know what smells like black walnuts....



Anyway, next question: When reinstalling the studs, I plan on chasing the holes with a tap, then cleaning & re-greasing.
The PO obviously used loctite, but isn't an anti-seize more appropriate for a steel stud into Al. threads in the case?

Stu
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stugray
post Nov 13 2012, 05:56 PM
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Never heard an answer:

"When reinstalling the studs, I plan on chasing the holes with a tap, then cleaning & re-greasing.
The PO obviously used loctite, but isn't an anti-seize more appropriate for a steel stud into Al. threads in the case?"

Do I use thread locker or anti-sieze?

Stu
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brp986s
post Nov 13 2012, 09:41 PM
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You chase with a chaser, not a tap. If you chase with a tap your stud will fit wobbly. Use threadlocker, not anti-seize.
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mrbubblehead
post Nov 13 2012, 10:06 PM
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QUOTE(brp986s @ Nov 13 2012, 08:41 PM) *

You chase with a chaser, not a tap. If you chase with a tap your stud will fit wobbly. Use threadlocker, not anti-seize.


i would even be afraid to chase them. or do chasers just clean up the threads? my worry would be removing ANY material from the threads.
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McMark
post Nov 13 2012, 10:17 PM
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Don't chase. Just reinstall.
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