Folks:
Just thought I would check in on my winter project; The
rebuild of the engine in the 6.
So far I am about halfway into the teardown, having removed
the engine and tranny from the 6 a couple of weeks ago. So far
I have found the wrong intake manifold gasket (occluding the
intake runners as a result) and an improperly installed head gasket.
I had previously thought it was the WRONG head gasket (from a CC motor
instead of a CF), but once I got the water pump off, I could
see the remains of the little tab on the CF head gasket. So my
conclusion now is that the head gasket was correct (CF) but installed
upside down, placing the marker tab behind the water pump, where it was
crushed and hidden. I don't know what that might do for the sealing
properties of the head.
No evidence that the gasket was actually blown, although the
gasket was chewed up during the teardown, so it is hard to say for sure.
Rusty sludge in the water jacket kept me from draining the block using
the drain plug. After I had the motor on the engine stand, a punch and
a couple of whacks from a hammer knocked the hardened sludge out
of the drain hole, and the coolant came gushing out of the block.
So, I am still looking for the source of my low compression in
number 6 cylinder. I will be looking for a broken ring when I get
the bottom end apart this weekend.
My sweet wife gave me an early Christmas present; a Dremel, so
I will be using that to port the head and detail the valves.
I cc'ed one combustion chamber, and I have concluded that
milling the head 0.125" will get me close to 9.5:1 compression. Does
anyone disagree with that conclusion?
I will let everyone know how it goes after the weekend.
Cheers,
Vance
Mimosa '74 TR6
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