Fuel system diagnostic help.

[Scott Dudevoir]

Marcus,

The hot cable would prompt me to look at possible
exhaust leakage from the cylinder.
Maybe around the spark plug.
Or possibly a leak in the head gasket near the cable.

Cool(er) engine, this gap may be small enough to run fine,
but as it heats up, the gap widens.

If loosing antifreeze, (causing hose to collapse)
you should look for decreasing levels of coolant and 
white exhaust as problem kicks in.

Here's hoping that it is something much simpler.
Scott Dudevoir
'85 5kS