Needed tractor witchdoctor in NE Indiana

atlarge54 · Sep 3, 2009

I have come to expect nothing but trouble on even the simplest job on this Case tractor project. New water pump, even the parts man said the old one felt really tight. Two 3/8" bolts and one 3/8" nut on a stud. One hand on a 7" long box end wrench and it just doesn't feel quite right, yep the stud is pulling out. Made me think of the last connecting rod nut when I was doing the engine and couldn't get over 40 ft/lb when I needed 55 ft/lb. This stud has about two full threads of engagement in the casting, not what I'd call a super design. I guess I'll just tap out to 7/16" thread and open up the matching hole on the pump. Maybe a dab of JB weld on the backside of the new stud to seal and protect from corrosion. Any better ideas out there. I've never encountered a project with so many little nagging problems. I'm sure I'll encounter more before finishing up.

glennster · Sep 3, 2009

how about installing a heli-coil in there, that way you could keep the same bolt size?? does the stud go into the water jacket?

atlarge54 · Sep 3, 2009

Stud goes into water jacket. I don't think a helicoil would work, there's so little area to grip. Gee it held for forty years what's to complain about? I'm beginning to think when (if) this thing gets going it might take a notion to kill me and I'm not superstitious.

Don-Wi · Sep 3, 2009

You could go with a fine thread thread insert. It would give you more thread grabbing, and from a technical aspect, fine threads have more holding power of an equivelent coarse thread bolt.

Donovan from Wisconsin

Needed tractor witchdoctor in NE Indiana

atlarge54

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glennster

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atlarge54

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Don-Wi

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