[AJD] Hood Bolts

[Louis]

You need to be careful while heating around cast.  It can crack from heating
the bolt. The entire area of cast should be preheated with a torch.  

I usually have luck with easy outs.  There is a reason why it broke in the
first place. Because it is stuck for some reason.  So it needs to be unstuck
some how.  The easy out replaces the bolt or screw head that is missing. The
best thing to do is heat the hardware before you try to remove it.  That way
you end up with less broken bolts. 

The trick is that you need to heat the bolt. This may take several heating
and cooling cycles.  I then use canning wax, you can use a crayon or candle
also.  I touch the wax to the hot metal.  The wax will penetrate into the
thread and act as lubricant.  Wait till the metal cools from red hot.  The
paraffin in the wax can catch on fire.

Another trick, if there is enough of a stub sticking out of the hole, you
can weld a nut to it.  The heat from the welding should loosen up the bolt
and then you have something to put a wrench on.  You also don't have to work
about drilling the bolt out.

Before I would try to melt the bolt out.  I would try to drill it out.
Don't worry about the threads.  You can go to NAPA and get a Heli-Coil kit
for a reasonable price.  They are cheap then the aggravation of trying to
not mess the threads up with a torch.

Lou
 
mailto:louis at kellnet.com
 


-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
Dean VP
Sent: Thursday, December 01, 2005 6:27 PM
To: 'Antique John Deere mailing list'
Subject: RE: [AJD] Hood Bolts


Bill:

it depends on which hood bolts you are talking about. If they are the ones
that connect to the square captive nuts behind hood, just bend the shell and
release and replace them. If you are referring to those hood bolts that go
into castings then just use an acetylene torch, heat the portion to the bolt
that remains a few times to a cherry red, drill them out as close to the
threads as you dare and then melt out the rest. You can try using the "never
outs" first after the heating and drilling but sometimes the only way is to
melt them out. Just remember that the bolt metal will melt at just a
slightly lower temperature than the cast iron. Using a left hand drill will
sometimes cause them to come loose while drilling. 

The real key is to get the bolt material right up to the temperature where
it is about to melt, let cool and repeat, when trying to turn them out.
Don't be afraid to get it really hot.  The expansion and contraction will
break the rust bond. 


My Christmas wish to Santa is a set of left handed Cobalt drill bits. But...
I don't think Santa knows where I live. 

Dean A. Van Peursem
Snohomish, WA 98290

Forbidden fruits create many jams!

www.deerelegacy.com

http://members.cox.net/classicweb/email.htm



-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
Bill Thompson
Sent: Thursday, December 01, 2005 1:37 PM
To: Antique John Deere mailing list
Subject: [AJD] Hood Bolts

Hi Boys , I wounder if you could help  me out . I know this has come up 
before on the list, I have tried the EZouts , and it is not going to work. .

Can you take a touch to them, and blow them out, have any of you boys tried 
that . Well let me know ok  .   Thanks !


Bill "Spud" Thompson
Katahdin Valley Farm
Sherman Mills, Maine
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