Great photos! You could make a repair and maintenance book better than any currently available.
Does your bell crank have a stop? Not sure this part was original to my car, but I found an L shaped BMW part that mounts behind the bell crank and stops the travel of the short arm of the bell crank. Not sure if this is an issue with Zeniths, but I wanted a hard stop to prevent stress on the spindles in my Webers when I push the accelerator to the floor.
The stop was added to all 3.0CSDoes your bell crank have a stop? Not sure this part was original to my car, but I found an L shaped BMW part that mounts behind the bell crank and stops the travel of the short arm of the bell crank. Not sure if this is an issue with Zeniths, but I wanted a hard stop to prevent stress on the spindles in my Webers when I push the accelerator to the floor.
so good news on the fan installation, it has been a while, but i made a very nice assembly
i have used a box to set inside the relay and the fuse to feed the fan
a straight 4mm2 cable from battery positive to the relay, and activation from thermo switch,
using fuse number 10 out as source for the thermoswitche feed, and placed an idiot light to show when it is working
nice thing about fuse 10 is that gives you +12v when ignition switch is in position II
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I'd second TodB regarding on the cam adjustment. With my 100,000 mile E28, until I set the gap on the cam it was always noisy. Used the same safer gap as TodB. The large contact area between the lobe and the pad lets you be more confident about the go/no go accuracy.