Submitted by: Simon Holywell
First of all lets go through the tools required:
- 8mm Allen Key for the Bosch
- 6mm Allen Key for the Ducelier
- a big shifter or open end spanner
Now to the Alternator itself. You need to buy a Bosch BXH1236. This Alternator is suitable for a Holden Commodore VB, VC, VH, VK, FE-HZ or Toyota Corona. I paid $160 for mine.
It does 22/55Amp at 14v so its got a higher rating than the original. This should help stop those dimming lights.
Unfortunately the original bracket is no longer any good. It is not long enough. So I went to a wreckers and got a selection of brackets from wrecked cars. The one I finally decided upon came from a Ford Cortina 2l sedan. It was much larger than the original and after a couple of hits with a hammer it was straightened out a enough to be exactly right for the new alternator. I then got a hacksaw and cut the brackets slot so that it extended further than before.
Now to fit it to the car. I moved the alternator bracket from its original bolt and moved it the second bolt position. So it moved from the righthand position to the lefthand position. I then inversed it so it kinked off to the right rather than the left like it used to. The Cortina bracket was now in place and ready to be used.
But the alternator needed to be modified so that its pulley stuck out to the right length. So some of the packing behind the fan/pulley needed to be removed. The 8mm allen is now needed to get the pulley off. Do the same to the Ducelier at the same time. Stick the allen in the top of the spindle and undo the nut with the large shifter.
Swap the pulleys over and use the spacers from both of them to come up with a combo that makes the Bosch alternator stick out the correct distance. Do the nut back up and take the alternator out to the car. Proceed to fit it where the old one was. Bolt into place and I would recommend replacing the fan belt at the same time. ($16 AUD). The serial of the one I bought was Bosch 11A0865, I found that this was a tight fit to get over the pulley but any slacker and the alternators body would have hit the bottom of the airbox. But you might find that something between a 11A0850 to 11A0875 will fit better. I would also recommend that you either change or clear/clean the oil breather pipes at the same time as this mod. Saves you having to take that airbox off again.
Hopefully you will now be able to do this yourself. If you have anything to add to this information please feel free to email me.