This is part 2 of the train horn writeup. Part 1 can be found here.
Once I had all the bits, it was time to install them. Firstly, a clean workspace needed to be made.
Next, the compressor.
The compressor required some thought because it had 4 screws welded to the bottom of it, so bolting it straight to the chassis was not a possibility as it was not possible to get to the otherside of the chassis and tighten the nuts. I got 2 x 250mm lengths of gal dipped unistrut from work (shown below) and drilled 4 holes for each screw, which allowed me to bolt the compressor to the unistrut. This meant though that when the compressor was in use it would vibrate and make quite the racket against the steel unistrut. The solution was to obtain some rubber strips with a sticky side to put between the compressor and the unistrut.
The unistrut was then bolted down to the chassis of the car, as per below. The air tank was able to be bolted directly to the car as it had mounting holes, and this was installed on the other side of the sub. The rubber hosing shown in the pic will be fastened somehow, but I’ll worry about this later on. (more…)