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Old 06-03-2008, 12:03 PM   #781 (permalink)
drummingpariah
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Join Date: Feb 2004
Location: San Leandro, CA
Posts: 2,067
Car: 1973 Datsun 240z
Mods: Chevy v8.
drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?drummingpariah Why haven't you checked into rep rehab yet?
Quote:
Originally Posted by hndacvcsi View Post
245-series tires! DO IT!

I sourced out a couple Camaro electric fans for $20 (for the pair) that I'll have to make a pair of mounting brackets for, but they should work beautifully on this motor.

I started tearing down the motor, and found out why it was seized up. Bear with me here. There's no rust, even though it looks like there is. I actually think some dirt/mud/clay got into the motor somehow (maybe an animal living in the intake manifold while it sat?):


Only the rear cylinder was affected. The other side (driver's side) was much more interesting. Bear in mind, that cylinder was at the BOTTOM of its stroke, meaning that the valves were completely closed.


I let them soak in some wd-40 overnight, and will soak them in some diesel tonight for a half hour or so. Underneath the 'shells' (as I'm calling them), the cylinder walls are smooth as a baby's bottom (just like all the other cylinders) which means I definitely need a hone, possibly a bore.

I hope to have the block and heads in the machine shop by Friday, and hopefully be able to pick them up next week (might take a little longer, which I'm okay with, with the following done:
  • honed/bored cylinder walls (as required)
  • cleaned/polished crank
  • slightly milled heads (shooting for 9.5:1 compression out of this)
  • completely hot-tanked block and heads
  • ported and polished valve openings (I'll probably do this myself, they don't need much work to be gasket matched).
All the main seals will be replaced in the process, and I'll probably repaint it after I get it back. I'm considering a new oil pump (so the oil pan doesn't stick down so far) and a new-style oil filter (the old style was both heavy and hard to change out). All told, not a bad deal for a free motor (as long as it's salvageable).
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Quit SHO on Oct 3rd, 8:10pm (PST) of 2008. This site has become a joke, and I'd much rather put my efforts into http://madnessmanual.com

Good luck.
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