When I bought my '67 1600, the only gauges that were original were
the speedo, tach and clock. A PO had replaced the rest with a variety
of aftermarket stuff, none of which seemed to be correctly matched to
sending units. I opted to replace them with VDOs. The water temp
gauge posed the biggest problem because of the sender.
I found an article online about Bob Sharp Racing and in it they
discussed the water temp sender. BSR solved the problem by splitting
the rad hose into 2 pieces, connected by a short piece of tubing with
rolled beads on each end. An adapter was welded into the side of the
tubing and the sender was threaded into it. I found a similar (if not
exact) adapter here:
http://www.egauges.com/vdo_acce.asp?Subgroup=Weld_In_Temperature-
Adapter
The downside to suspending the sender between 2 rubber hoses is you
lose the ground. I took some braided cable shielding and slipped the
lead wire through it, creating a single unit like unjacketed coax.
The shield provides the ground when attached to the tubing and the
frame. Maybe not the most elegant solution, but I won't have to
drill/tap anything.
Sorry to be so verbose.
-- lonestar
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