[R-390] Resistor Tolerances

Scott, Barry (Clyde B) [email protected]
Mon, 29 Jul 2002 11:27:21 -0500


Just curious:  How do you make a bearing clearance tighter once it's bored too big (or the race is ground too small)?

Barry(III) - N4BUQ

> Yup. Just like the notorious GM 2.8L V6 engine that
> always threw out the bottom end. These things were
> made by the zillions for Citations, S-10's, etc., and
> they deliberately had very loose tolerances for the
> bearing clearances so that, even if they didn't last
> that long, at least they would ALWAYS fit together.
> In this case you ignore the "factory" spec and put it
> together with tighter clearances if you want it to last.
> It actually is a very nice little engine once you blueprint
> it, and it will last a very long time indeed.
>