Mechanical Oil Pressure Setup - Anyone?
I have just broken another cheap GM sender <img border="0" title="" alt="[Frown]" src="gr_sad.gif" />
Tommy <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
plastic tube from the oil pressure tap to
the gauge. I consider this a hurt waiting
to happen (one "oops", and you're going to
pump your oil out a brand new hole that you
don't know about until something messy and
possibly expensive clues you).
I've never broken an electrical sender on the
3-4 vehicles that I pulled engines on, or the
many others I've messed with (although
my '68 El Camino's original oil pressure
sender (switch type) decomposed this year
and started to weep oil out the top; major
setback, new sender cost me over 12 bucks.
I have heard campfire tales about the tube
breaking and the oil ending up in the passenger
compartment. If I were going to go with the
direct gauge (and I won't), I'd go with hard
line where possible and a good protected soft
line where not.
Polyethylene tubing holding pressurized oil,
200F at least at the engine end, is not
something you should expect a lot of life out of.


