If you have been following this thread that seems to be 15 miles long

, you know that I decided to plunk down some coin and purchase a crimping tool that would help me get the AC lines and fittings together. I figured it was a good idea since the wife wants me to start putting together a Mustang for her in a few years.
The tool is from a company called "Mastercool" and seems to be very well made. It is designed to be placed in a vise as you crimp your lines.

The main unit is heavy, and the tool comes with 4 different sizes of crimping inserts, 6, 8, 10, and 12. (did not need the 12 for this installation) The tool I purhased also came with a nice plastic, blo-molded case to keep the entire unit and inserts together.
Basically the idea here is that you set your fitting in the crimper, insert your hose to the end of the fitting (each one has a sight hole so that you can be sure you have inserted far enough) and then use a wrench or ratchet to cinch the ends together - the inserts crimp the fitting and hose together.


I made sure the fitting and hose were centered in the bore before I hand tightened the press, and then after doublechecking I used a 3/4" wrench to bring it all together. There is a mark located on the boss so that you know how far to go...

The tool works as advertised and the crimps look to be even and of course that hose is very tight in the fittings!

For some hoses you make you will end up with fittings that need to be oriented to a particular "clock" or angle. Of course, if one end is a straight 180 degree fitting then there is no issue. I marked my fittings and hoses by using a sharpie and making sure the fitting and hose were oriented correctly before I cinched them down.

Of course, keep a little mineral oil on hand for those O-rings, and make sure you don't cut them as they go on the fittings/get connected to fittings in the car.


I am pretty happy with the AC kit I purchased - although the price point seemed to make it a "budget kit" the hoses shipped with the kit are obviously name brand "Parker" - a well recognized name in the industry.
Daniel JessupLancaster, California
aka "The Hot Rod Reverend" 
check out the 1955 Ford Fairlane build at www.hotrodreverend.com