My Campbell Hausfeld compressor is in good shape for its age. But the pump is showing its age. It won't keep up with any of my air tools. It's noisy. And it is leaking at the shaft seal. Since I believe it is a splash and pray system, blow-by pressure is probably forcing the oil out. I got a HF v-twin to replace it. Spent some time tonight mocking it up to see if it will fit and what other parts I need. Got some good info from Vince (302 Z28) and jaguarxk120 on the BBS in the Garage - Tools section. Thanks guys.
At this point, I am fairly certain it will work. I have to drill 8 holes. I have to buy a pulley, set of belts, and some fittings. I will have to limp along with the old pump for another week or so.
Between the factory holes and the holes put there by previous owners, the firewall is close to Swiss cheese.
I started cutting out filler pieces and welding them in. Tedious work, late in the day, hot, and I was still working faster than my compressor. Only got five holes filled, three with filler pieces and two backed by copper. I also got the rosette welds put in on the accelerator pedal support.
I also will have to determine what to do about the firewall pad as I realized some of the holes are for mounting it.
I had used a plumb bob to make a line on the floor from the front edge of the dash. Today I did the same thing with the front edge of the seat. The right side is about 5/8" ahead of the left side. I laid out some new hole locations. I will post photos when I drill the holes and re-install the seat.
In addition to the seat being removed, the engine, transmission, MC, booster, pedal assembly, steering column, and dash cross tube were also removed to make room for welding the firewall and toe board.
Since the steering column location is final, the sheet metal in the toe board where the column is located was finish welded. The hole for the original brake pedal was also filled as was the hole for the carpet pin which interfered with the lower column mount. (just to the right of the far left seam)