On the overheating;
It is possible that there is obstructive material around number 4
cylinder. That will cause an already poorly designed/manufactured water
passage to overheat locally, sending steam through the system. I had a
similar problem and used a stiff wire and lots of water to flush the
block with the head off. I took the drain petcock clear out so to get
the best water flow and used a peice of heavy stiff wire to knock the
crud from the passages while flushing the system. Got a small amount of
water in the cylinders but dried them and changed oil afterwords. After
that I never had any overheat problem even here in 115 AZ. Another cause
might be a lean run condition caused by a vacuum leak. This can
sometimes be diagnosed with a vacuum meter.
Former RCKTSHP owner
> hi all,
> I was looking over the rear suspension items on a vendors site. it lists
> the front leaf spring as having two bushings and the rear having eight. is
> this correct or am I reading it wrong?
> has anyone replaced the speedo piece that fits inside the union and
> connects the cable? this is the small shaft piece. I was told a tranny shop
> could supply me with one but am unsure how to tell them what I need. I guess
> I could take the cable and union to the shop. however I was wondering if
> anyone had a part number or type.
> I will try and pick-up a 7 lb pressure cap for my overflow tank today
> sometime. hopefully that will help the overflow. I was pondering it last
> night and the temp never got over 190-195. is it possible to have a normal
> temp reading and still blow coolant out of the overflow tank line?
> thermostat is new (240 Z model).
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