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savedallis1953 
Bronze Level
Joined: 03 Jan 2018
Location: Florida
Points: 136
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 Topic: 3 bolt wide front.
Posted: 22 Mar 2019 at 6:02pm |
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First off you gentlemen are great. Thank you for knowledge abundant. I have a 3 bolt wide front and at least one bolt is stripped out. My question is 'is it worth or acceptable practice to drill the bolt holes deeper' and can any internal damage be done by doing so.
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1953 WD, 1953 WD, WD engine with WD-45 crankshaft.
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nevans
Orange Level
Joined: 06 Dec 2011
Location: Red Bud. IL
Points: 837
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Posted: 22 Mar 2019 at 8:09pm |
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Have to be careful about drilling in futher can go yo far and get in to oil or grease area I know this will cause problems but maybe helical coils or metric threads just and idea
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Michael V (NM)
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Joined: 12 Sep 2009
Location: NM
Points: 2492
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Posted: 22 Mar 2019 at 10:26pm |
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I have one that's drilled and tapped to next larger size..3/4" I think...only on the lower 2 tho...
Edited by Michael V (NM) - 22 Mar 2019 at 10:26pm
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savedallis1953
Bronze Level
Joined: 03 Jan 2018
Location: Florida
Points: 136
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Posted: 23 Mar 2019 at 5:09am |
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Thanks for the information. I now leaning towards 3/4" bolts.
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1953 WD, 1953 WD, WD engine with WD-45 crankshaft.
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825
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Posted: 23 Mar 2019 at 11:28am |
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I don't see any reason why you couldn't go all the way thru the casting and tap to the original size. Just so long as the bolt doesn't go far enough to interfere with the moving parts inside.
A liberal coating of loctite on the bolt when assembling would seal up anything that anted to leak out, or loctite a stud in place and put a nut on the outside.
Any threaded hole should be at least one and a half times deeper than the bolt size.
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savedallis1953
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Joined: 03 Jan 2018
Location: Florida
Points: 136
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Posted: 23 Mar 2019 at 5:24pm |
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even better Idea! W have a shortage of Allis Chalmers here in Florida so the pickings are slim which leads to worn out ones, almost exclusively, if you can locate them at all hence the grinding, drilling, tapping, welding, crying, finger smashing etc. Still love the w series!
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1953 WD, 1953 WD, WD engine with WD-45 crankshaft.
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Dave (Mid-MI)
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Joined: 12 Sep 2009
Location: Hemlock, MI
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Posted: 23 Mar 2019 at 5:37pm |
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Drill it out and install a Helicoil insert in the original thread size. You will have stainless steel threads that are much stronger than the cast iron originals.
Edited by Dave (Mid-MI) - 23 Mar 2019 at 5:38pm
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Michael V (NM)
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Posted: 23 Mar 2019 at 8:42pm |
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Previous owner had put the 3/4 bolts in the one that I have, its the only one of three that's been messed with. I would have done the heli-coil as Dave said...has been claimed that heli-coil is stronger than the original
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