bctexas
Well-known member
I'm reworking the AC on my '86 MR2. I also plan to do the same on my '65 Cadillac next spring. I decided that rather than pay to have hoses made I would just buy a Mastercool crimp tool.

Do home made tools count here? One of the o-ring fittings attached to the old evaporator galled coming off, and would not screw onto the new evaporator. I found thread chasers on Amazon - $60. For one fitting that seemed a bit much. So I picked up a 7/8-14 bolt from the local bolt store. I chucked it in the lathe, faced it and bored the end to fit over the aluminum tube, then milled a couple notches in the end. Worked great and was $6....



Do home made tools count here? One of the o-ring fittings attached to the old evaporator galled coming off, and would not screw onto the new evaporator. I found thread chasers on Amazon - $60. For one fitting that seemed a bit much. So I picked up a 7/8-14 bolt from the local bolt store. I chucked it in the lathe, faced it and bored the end to fit over the aluminum tube, then milled a couple notches in the end. Worked great and was $6....




















































