How do you remove and install a distributor for a 1988 Audi 90?

To remove and replace the distributor on the 1988 Audi 90 proceed as follows:1: First remove the cap.2: Take a picture or make a note of the position of the rotor.3: Next before loosening or removing the hold-down bolt, mark the position of the distributor base by scratching or scribing a line from the distributor flange to the engine block. (this will be useful as the approximate location to install the new one).4: Remove the hold-down bolt or nut which ever is used.5: Tap sideway lightly on the distributor housing to break it loose from it bore. Then remove it from the block using care in regards to the oil that may be dripping from the gear at the bottom end.

Installing the new distributor.

1: Place the distributor into the bore while holding the rotor in the position of the old one. (you made a note this of earlier).

2: Be sure to install it so the flange at the bottom of the ditributor housing bottoms on the engine block surface.

3: Install the hold-down clamp and loosly tighten it to hold the distributor from spinning.

4: Install the cap. and you ready to perform the ignition timing adjustment.

I hope this info was helpful.