Listers:
The overwhelming consensus of the responses sent to me was that the
culprit of this dastardly deed was NO GROUND CABLE.
Went home from work yesterday and managed to get the little lady high
enough to check for the grounding cable. THERE IT WAS! It was a
little oily and gritty but not broken or frayed and very tight at both
ends. I did not take it off to clean and reattach but I will when I
get her up a little higher and steady on jack stands. Should I just
replace it when I get it off or will a good cleaning at the connection
points be OK? Any other possibilities?
Thanks for all the responses.
Dave
Subject: Fried Tach cable
Author: Dave_Vrba@mail.sel.sony.com (Dave Vrba) at SONYCOM
Date: 6/15/98 10:15 AM
Had an interesting happening yesterday while on a wonderful Northern
Calif Sunday drive in the '62 MKII Sprite.
I literally "FRIED" a tach cable. The rubber coating melted (smoke
too)
How can this happen? I had the tach cable routed from the generator
rear end gear assembly back to the heater box with a gradual right
angle turn to lay between the heater box and the battery with another
gradual right angle turn to the firewall and through to the tach. The
cable fried from the heater box turn to the generator area like it got
"electrified" somehow and had a direct short. I suppose the rubber on
the cable had rubbed through at this turn creating a ground. (I have
a negative ground system) But that means the cable itself had to have
a "positive potential" from the generator, Right? How can this
happen? Is the generator FRIED as well causing this? The generator
was VERY HOT to the touch. I did read 2 volts to ground from the
large spade terminal on the generator with the leads disconnected and
the car running turning the generator at idle. Is this correct?
Diagnosis and help appreciated on this one. Don't want to FRY another
anytime soon. (Can the local auto parts house bench check my
generator correctly?)
Dave
'62 Sprite MKII
HAN6L14083
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