Fuel Pump wires charred on 1990 Audi 100

[cobram@juno.com]

 "Jim Jordan" <capnkidd at sbcglobal.net> writes:

> I stumbled onto a 1990 Audi 100 that is not operating because the 
> fuel pump apparently failed while being driven. 

> the insulation on the wires was charred

> Any ideas why this would happen?  Would a fuel pump seize and draw 
> enough current to burn the wires before a fuse popped?  

I've seen this happen on a dorF Ranger, pump was evidently seizing at
just the right amperage and time cycle to not blow the fuse, but enough
to get some whiffs of smoke coming out from under the dash....took a
while to put 2 + 2 together (which on a Ford adds up to 3 BTW.)  I'd
still check for chaffing of the wire somewhere too, just in case.  

BCNU,
http://www.geocities.com/cobramsri/
Hamburgers. The cornerstone of any nutritious breakfast.