Water Temp: My 120s both have the spiral wire covering on the
temperature tubing. A spare gage has the same. I’m fairly confident that
the spiral winding was to protect the copper tubing from kinking and
denting during shipping and installation as well as after it was
For John Elmgreen and those who don’t have more important car problems.
Oil Pressure line: The recent oil pressure thread reminded me that there
is a somewhat unique original configuration of the copper oil pressure
line which I see compromised on many restored cars. On all original 120s
I’ve seen, the oil pressure line tubing has a 4 turn coil in it
approximately 3 and 1/2" in front of the firewall. The coil is vertical
and has about 1 and 3/4" outside diameter. The flexible line which leads
to the top of the oil filter attaches immediately forward of this coil.
I can only imagine that the coil was intended to perform some sort of
vibration damping or was just another Jaguar production mystery.
If anyone has an original car that does not have a “coiled oil pressure
line”, (I won’t be surprised or feel duo-tone blue) I will just add it
to my long list of exceptions.
Regards, Dick Cavicke