I haven't checked the countershaft bearings yet, but if I have to pull
the tranny to replace the bearings, then I should also replace the
leaking engine rear main seal.
If I replace the rear main seal, I also have to pull the crankshaft,
right? To pull the crankshaft, I have to pull the pan, which means I
can easily replace the oil pump. I'll also have to pull off the timing
chain to get the crankshaft out, right? So I might as well replace the
timing components.
I have no reason to believe the camshaft is bad (or the crankshaft or
timing gears/chain, for the matter) but if I'm that deep in the engine,
I should have the camshaft checked, right?
If I go that far, I'm already most of the way into an engine rebuild.
If I'm going to go that far, I'd rather turn it into an H20, if there's
any advantage to that without modifying the camshaft/head/carbs.
So I guess my question is - If I have to disassemble the engine to
replace the rear main seal, would it behoove me to get H20 internals,
and would I gain anything by doing that? Should I stop in my local
Nissan or Komatsu forklift dealer and ask for an H20 crankshaft,
pistons, connecting rods and timing chain/gears? Is an H20 oil pump
the same as an R16 oil pump?
=====
Adam
'70 1600 SPL311-28181
http://www.picturetrail.com/abend
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