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Head Stud Bolt Replacement

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AlbertoV05

03-22-2003 22:11:03




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I want to replace the 5/8" nuts on the head studs on my Model 60. If I was to use some grade 8's would it be a good idea to use a grade 8 flat washer between the lead washer and the nut, or forget the grade 8 flat washer?

Also, to remove stubborn head studs should I use a propane torch to heat the stud or heat the head area around the stud before using my stud remover? How "careful" do I have to be not to warp or crack the head when using the torch?
Thanks in advance!

Al in Iowa

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Will P

03-23-2003 12:45:44




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 Re: Head Stud Bolt Replacement in reply to AlbertoV05, 03-22-2003 22:11:03  
Just like "A puller" has said. "We have found that by heating directly around the stud hot enough to melt candle wax down into the threads and then just double nutting the stud to remove it." That is the same answer I got from a guy at a large machine shop. The same machine shop that my local Deere dealer uses to do all of there machine work. I haven't done it yet, but will be shortly. If you do that. Let me know how well it works.

Will P

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Wayne

03-22-2003 22:46:58




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 Re: Head Stud Bolt Replacement in reply to AlbertoV05, 03-22-2003 22:11:03  
In the past I've always found that when dealing with head bolts/studs to not do anything in the way of washers, etc beyond what was called for from the factory. But that's just my opinion... In order to remove the stubborn ones, you need to heat around the stud, not on the stud. Heating the stud itself will make it expand and make it harder to remove. If your talking about heating with a regular hand style propane torch you shouldn't have to worry about warping the head. It will take alot more heat than you can apply with one of those to even begin to think about warping it. If your talking rusted studs then I'd suggest soaking them in PB blaster and letting them set overnight. Then before you attempt to remove them, soak them again and hit the tops of them with a hammer several licks. This will shock the threads and many times will help free them up. You'd be amazed at how good this little trick can work. Hope this helps, Wayne

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A puller

03-23-2003 07:15:46




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 Re: Re: Head Stud Bolt Replacement in reply to Wayne, 03-22-2003 22:46:58  
We have found that by heating directly around the stud hot enough to melt candle wax down into the threads and then just double nutting the stud to remove it. This has worked well for us and not got the head hot enough to warp it . Good luck.



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