I recently had a good deal at my local PNP and picked up three 007 AMMs from a trio of 1987 700 series cars (one 740 sedan, one 740 wagon and one 740 turbo). All are original as far as I can tell and the two from the NA cars came from cars that looked like they extensively maintained and not abused. All three are also from cars that were running when they were dropped off at the yard. I got them home and cleaned them with the CRC Mass Air cleaner; lots of black juck came out from all three, but all are clean now. I then did resistance checks on all three to try and establish condition. Oddly enough, all three gave low resistance figures on the platinum wire (terminals 2 and 3 if memory serves). All three came in at exactly 3.0 ohms. The Bentley book show this figure to be 3.5-4.0 ohms, so technically all three are out of spec by half an ohm. I checked the Bentley errata post and the resistance spec is not listed as an error. Are all three of my AMMs bad? I don't have a running LH2.2 car to try these on yet. Can anyone give me a resistance figure from a known good, running AMM as a baseline?
Thanks,
Nick