The engine rebuild is going slow but sure on the '75 TR6. I should
get everything back from the machine shop this week. Yay! Put in an
order for over $1000 of stuff from TRF - free shipping, and 10% off
from them made this a good time to do a rebuild. I hope all this is
worth it! The cylinders were out of speck by .007in, so it was pretty
well worn. So we decided to bore it .020 over and put in new pistons,
as the old pistons had signs of wear and tear too. Should make a
WORLD of difference me thinks. BTW, does anyone prefer an engine
lube over another for assembling the engine? Molylube comes to my
mind, but this is my first rebuild too... Nuff, about that monster.
When I was disassembling the exhaust manifold, three of the six air
input pipes broke as they were rusted pretty bad. I guess I should
have liquid wrenched them before removing the bolts. I wasn't
planning on putting them back anyway, as I'm planning to plug those
stupid air input holes with some bolts, and alot of anti-seize glop.
That way I could put the air pump junk back on the car if needed, or
for resale or whatever. Hopefully, not for the whatever... :-> I'm
hoping that this maneuver will increase my exhaust flow a bit, and help
the engine breath. Should I just put the pipes back in and leave the
belt off the pump, or am I gaining enough to do what I doing?
So, does anyone have any nifty ideas on how to repair the broken
pipes? Like I said, I'm not planning on putting them back on any time
soon, but would like to have a working set around... They just broke
next to the bolt, so I'm thinking of having some sort of thin metal
sleeve that fits inside the tube and flaring that out so it will screw
in the manifold again. Any ideas on this? I'm sure that they get
quite hot, so I don't know how to attach something that won't leak
air/exhaust fumes...
Does anyone out there have a good explanation of what these stupid air
pumps REALLY do? (Besides get disconnected) I mean, do they really
cause combustion in the exhaust for a cleaner burn? Or do they just
decrease the parts per million in the emissions test by adding fresh
air. They seem totally silly. I'll never buy an air pump car again!
Yuck! OOPS! I said never didn't I.... Well, I take it back, just in
case a $1 *anything* comes my way. :-)
Thanks for any help and explanations. BTW, this is by far the best
mailling list I've ever seen on any topic!
---
"Well, if you can't believe what you read in a comic book, what *can*
you believe?!" -- Bullwinkle J. Moose [Jay Ward]
Scott Paisley paisley@cme.nist.gov ..!uunet!cme-durer!paisley
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