Rezeppa
Well-known member
I had a 753 Bobcat leaking antifreeze from the thermostat housing. The alternator tensioner bracket runs through the housing. The bolt holding that bracket came loose putting a small hole in it so it was leaking badly. The thermostat housing was cast aluminum. After tearing the antifreeze reservoir, hydraulic filter, and muffler off the Bobcat the thermostat housing nuts (studs held it on) were still extremely confined. I needed to grind part of the housing away to get to the last nut so I made this. 
I have done it before in the past, but this time one of the shop kids stopped and told me it was one of the greatest things he had ever seen so I though I would bring it to you guys in case you run into this problem. All I used was a regular 1/4 collet die grinder, a 1/4" spade drill bit extension, and a carbide bur. I understand this is not rocket science and isn't a miracle by any means, but it is something they don't teach you in school. Also Very Very important the extension needs to be extremely STRAIT. Any bend will break your die grinder being that they are not made to spin at 3200 rpm.

I have done it before in the past, but this time one of the shop kids stopped and told me it was one of the greatest things he had ever seen so I though I would bring it to you guys in case you run into this problem. All I used was a regular 1/4 collet die grinder, a 1/4" spade drill bit extension, and a carbide bur. I understand this is not rocket science and isn't a miracle by any means, but it is something they don't teach you in school. Also Very Very important the extension needs to be extremely STRAIT. Any bend will break your die grinder being that they are not made to spin at 3200 rpm.