Hans,
I agree with Barry. If the bearing shells are installed right you CAN'T
tighten up the crank journals in any way that will put drag on of stop the
smooth movement of the crank. Same goes for the rod bearings.
Something's not right. The bearing shells go back into the journal caps
with a positioning notch that must be engaged. Did you get some dirt of
grit on the bearing surface. Something is filling the precisely machined
clearances.
Another thought is the rod caps and on the 6 the center main caps are
numbered. They must be replaced in there original positions. The whole
block and caps combo was line bored at the factory.
Good Luck
Brian Sanborn
62 TR4 CT16260L - Groton, MA
My TR4 Restoration Web Site
http://www.net1plus.com/users/sanborn/Triumph.html (under construction)
E-Mail: sanborn@net1plus.com
-----Original Message-----
From: Barry Schwartz <bschwart@pacbell.net>
To: Hansen, Hans C, III (Red), GLSVC <rhansen@att.com>
Cc: triumphs@autox.team.net <triumphs@autox.team.net>
Date: Tuesday, June 01, 1999 11:45 AM
Subject: Re: Torque Settings
>
>
>>I'm replacing the rod bearings on my '74 TR6. While I was under the car
> < snip >
>>[someone]said I had tightened my
>>crankshaft bearings too tight. Sure, enough, when I loosened my main
>>bearings, the motor could be turned by the starter, but still not by
hand.
>>So,
>***********************************
>Tightening the caps on any engine (with the proper clearances for the
>bearings) WILL NOT cause the caps to distort to the point of seizing the
>crank. Even over tightening them WILL NOT, I REPEAT, WILL NOT cause this.
>It would over stress the bolts and probably cause a bolt failure over time
>or with load, but WON'T cause the crank to bind. If you can't turn the
>crank by hand, when re-installing the bearings, or installing new
bearings,
>then you have the wrong bearing's installed, or they are installed
>incorrectly somehow. DO NOT CONTINUE with this until you remedy the
>situation or you will surely destroy the crankshaft in short order-
>
>
>Barry Schwartz (San Diego) bschwart@pacbell.net
>
>
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