For the record, I
could have ordered a couple of the senders in the proper metric thread, but they
were many times more expensive, and also not available for every sender. I ultimately decided to order everything
in 1/8” NPT, and use the metric adapters that JC Whitney sells in a
package.
For the record, here
are the thread sizes for some of the senders:
Water temp in water
pump housing- M12 X 1.5
Water temp in rear
housing (near oil pressure sender)- M10 X 1.0
Oil temp (in pan)-
M16 X 1.5
Oil pressure- M10 X
1.0
Other fittings-
The front cover oil outlet fitting is a 16mm X
1.5
the drain plug appears to be a 14mm x 1.5 (haven’t verified that
yet).
the port for oil return on the rear housing is an 18mm x 1.5.
the port for oil return on the FD oil pedestal is 18mm x 1.5.
Adapter kit info
from Tommy James long ago (hope he's doing well):
As promised here
is the info from JC Whitney:
Adapter kit for
imported cars.
Includes,
M10x1.0, M12x1.0, M14x1.5, M16x1.5 and 1/8" 288SP external-thread adpaters, all
with 1/8" x 27NPTF internal thread.
P/N
13UC9267A....each $4.99
Cheers,
Rusty (Yes, I'm a pack rat of
info)