Here's where I'm at. Using this diagnostic test site:
http://easyautodiagnostics.com/misc-index/starter-motor-on-car-tests-1
which is very simple to follow..thanks again east302
THE GOOD
1) My battery (new) is 685 CA and shows 12.75 volts
2) The battery positive cable that's attached to the starter is 12.35 volts
3) Ground cable from Neg battery to the block and other (smaller ga. wire) to the side fender skirt are cleaned (sanded) as well as the metal to the skirt has been sanded to bare. I'm getting good multimeter readings at both location at 12.66 V. So there's no break in either cables (see pics added)
THE BAD, 2 bad readings when the ignition is turned on
1) 6.0 volts at the ignition terminal "S" on the starter
2) 11.56 volts when lead 1 of multimeter is on the positive battery post and lead 2 to the battery post on the starter. From
TEST 3, The voltage drop test this should be 0.9 v or less
From TEST 3 it suggest that there's a corrosive wire or bad connection.
This is racking my brain (what little I have)..lol I've gone over and over these wires. Nice and clean with solid contacts. Nothing moves around. And I'm truly beginning to believe it's definitely an electrical problem...but where?
The only other ground strap is a 2 part copper braid (under the ac accumulator, rear firewall) to the frame and to the back of the Trans bell housing. This I haven't touched and I can't imagine it being the problem (or could it) but I'll clean and give it a try.
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