J Class Changes
NW Mailing List
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Tue Sep 2 07:37:07 EDT 2008
The "extra" side rods were removed on three J's in their first life: 600,
605, and 611. Actually, the rods on these engines were completely replaced.
As I understand it, the reason had to do with a stress failure of some kind.
Check out photos of the various J's and you will see that the replacement
rods had much larger rod bearings on drivers 2 and 3. I would call this an
ungrade applied as necessary, and only three engines got it. 611 was the
last of the three to get the new rods.
Also 611 in its second life had two generators installed instead of the
----- Original Message -----
From: "NW Mailing List" <nw-mailing-list at nwhs.org>
To: "NW Mailing List" <nw-mailing-list at nwhs.org>
Sent: Tuesday, September 02, 2008 5:22 AM
Subject: Re: J Class Changes
> Another notable change was the removal of the 'extra' siderod between #2
> and #3 drivers when in its second life. I always wondered what THAT did
> to the balance.
> Mark Lindsey
> Stuck in the 1930's
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