[AT] Bad grease fitting

Len Rugen rugenl at yahoo.com
Wed Mar 2 18:15:34 PST 2016


I've got an ongoing problem with a grease fitting on the front axle pivot of a MF 255.  When I got the tractor, the fitting was missing (19 years ago....).  I put one in, but it fell out before the next service, the threads were stripped.  Being a poor young guy back then, I put JB weld on a new fitting, put it in the threads till it was snug and let it set up.  All was fine till the past few services, at first it was hard to get it to take grease, now it won't take any at all.  

The problem is the shoulders of the fitting sit down in a hole in the casting, probably deeper than original since the threads were bad and I can't get on it to get it out.   This is a 1/4 NPT straight fitting.   My thought is to grind off the tit, pull out the spring, drill and tap the old fitting for a  new 1/8 NPT fitting, clean out and hard grease and start over.
 Any predictions of this working?  If the old fitting falls out during the grinding/drilling, I'll do a helicoil fix.


Len Rugen

rugenl at yahoo.com





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