Re: Freight car help needed

Robert Heller spake thus:

At Thu, 31 Aug 2006 11:19:31 -0400 "Jeff Stanton" <jstanton@xxxxxxxxx> wrote:

I have several freight cars with trucks that I am unable to tighten and, as a result, they wobble down the track. It appears that the threads have been stripped, and the screws no longer hold. Does anyone have suggestions for solving this problem?

You don't really want to over tighten the trucks -- a certain amount of
play is needed. The trucks need to both swivel (for curves) and tilt
(grade changes, super-elevation). And *some* wobble is prototypical.

That having been said, you might want to drill out the holes and use
machine screws with nuts. Probably #2-56 would be the size you need to
use. This assumes that the freight car bodies can be removed from
their floors.

Actually, David Starr's techique given above is superior. Using nuts on machine screws is an invitation either to binding by being overly tight, or to not fixing the wobbling.


--
In order to embark on a new course, the only one that will
solve the problem: negotiations and peace with the Palestinians,
the Lebanese, the Syrians. And: with Hamas and Hizbullah.

Because it's only with enemies that one makes peace.

- Uri Avnery, Israeli writer and peace activist with Gush Shalom.
(http://counterpunch.org/avnery08032006.html)
.

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