[AT] WD45 questions

[charlie hill]

I've removed a few AC manifold studs.  If they've been there very long there 
is a good chance the ends are beyond
saving.  Steve's advice is sound.  IF you can't get them cleaned up good 
enough to get the nuts off without applying too
much pressure then don't even try.  Grind them off even with the manifold, 
remove the manifold and use the heat and
wax method Steve mentioned. ( I like Bees Wax for that job) Soaking them 
with your favorite penetrating oil won't hurt.
You'll have better luck getting them out of the head with a good, small pipe 
wrench on the shaft that any way I know of.
They usually aren't all that hard to get out of the head once you get ahold 
of some good metal.  If you feel it give when
trying to turn it stop, slide a one size bigger nut over the stud and weld 
it in place.  That will give you something good to get
ahold of and enough heat to free them.  The problem is almost always getting 
the nuts off of the outside.

I've had to drill at least one out that I can remember.  It went well but if 
you can avoid it you avoid the risk of messing up the head.

Charlie

-----Original Message----- 
From: Steve W.
Sent: Wednesday, November 14, 2012 6:12 PM
To: Antique tractor email discussion group
Subject: Re: [AT] WD45 questions

Gunnells, Bradley R wrote:
> While this isn't nearly as entertaining as the recent burn-out thread
> the fact the words Allis Chalmers has come up compelled me to send
> this. This is a tractor related question.  :-)
>
> I acquired a decent WD-45 through my dad (he did some work on another
> WD-45 and got this one for his efforts) and there are a couple if
> things I'm looking to "fix".
>
> The first item is the hydraulic valve leaks. Or I'm going to call it
> the valve as it sits on top of the pump. Is this something like an
> o-ring type repair? Here is a picture with a pointer to where the
> fluid is coming from since I find it hard to describe.
>
> http://www.southslope.net/~gunnells/allis/HydValve.jpg
>
> Next on the list, is the manifold has an exhaust end gasket gone so I
> need to pull it and see if it needs surfaced or just a new gasket
> set. The studs are quite rusted on the ends and I don't know that I
> can get the nuts taken off and put back on without replacing the
> studs. How likely are the studs to be seized in the head and nearly
> impossible to remove?

That's a sucker bet...
Heat is your friend. I would clean up the threads with a die and then
heat the stud as hot as you can.
Then take a cheap candle and melt it on the threads and hope it wicks
between the nut and stud.
Now heat the nut only. With it still hot try to remove the nut.

IF they come free then use the same trick to get the studs out of the
head. I've had this work pretty well
on studs in heads. IF they don't come free or break off, grab a nut the
same size or SLIGHTLY larger.
Place the new nut over the broken stud and hit it with a welder. This
will almost always heat the stud
enough to break it free so they back out. IF none of the above work,
grind the stud flat, center punch it
and drill it out. Use numbered/fractional drills and stop when you get
to the peaks of the threads.

OR just drill it out and re-thread or heli-coil it.


>
> The last thing is the slop in the steering. This unit has power
> steering which is great but I'd like to tighten it up as it's pretty
> loose. My WC is tighter but even it can start to wobble when running
> down the road.
>
> If can can get these items squared away it will be a nice working
> tractor and maybe one day get a fresh coat of orange with some
> decals!
>
> I have an IT manual for the WC/WD/WD45 but it's not overly helpful
> when your looking deep into the details. That's where this list and
> it's wealth of knowledge really are amazing.
>
> Thanks for any help! Brad
>
>
> ---------------------------------------------------------------------
>  Brad Gunnells                         |                    #
> University of Iowa                    |                    ||
> Information Technology Services       |       I_    ___ at ___||_____
> Enterprise Client Management          |   |__ I  \ |Allis Chalmers|
> Iowa City IA 52242                    |   ___\___  \ \          WC|
> (319)335-5524   FAX (319)335-5505     |   * * *___|__\__________   -|
>  mailto:brad-gunnells at uiowa.edu        |  *
> *----------------\___| | *   @   *                oo Interested in
> almost anything         |  *     *                o  o besides work!
> ;^)                    |   * * *                  oo
>
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-- 
Steve W.
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