I have a number of older Williams diesel engines, pre-Williams Bachmann, that are being re-greased. On one set of FA1 diesels zinc pest was evident on two truck sideframes and two motor mounts. What is evident is that this is a specific metallurgical casting lot issue and not a general problem nor date of production dependent, with the exception of these FA1 diesels not zinc pest has been seen in the other diesel truck side frames or motor mounts, all  engines were purchased 10 to 25 years ago. 

I would recommend that Williams engines be checked for this zinc pest issue, to check the motor mounts the shell must be removed and the can motor must be removed from the truck. Since the truck is removed the backside(s) of the side frame(s) are easily checked.  

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I recently had a bunch of coal-porter hoppers and some other cars come out of storage with the trucks and couplers literally disintegrating into chunky die-cast crumbs. 
I'm scared to think about what could happen to expensive somebody's die-cast steam locomotive!

Rich Trowbridge

GTW Trenton & Western Railroad

I have had issues with several older williams products having zinc pest. Several loco sideframes, a pilot, streamlined passenger car trucks and heavyweight passenger trucks. Bachmann doesn't keep many parts and rarely restocks sold out parts. I am not going to buy anymore Williams or WBB items because they don't support their products.

Michael DeSandro

Troy, AL

John Meyncke posted:

I've had to JB W*** several side frames on my old Williams diesels also. I've never had one crumble yet into an unrepairable heap, mostly just clean breaks that are pretty easy to fix. Keeping my fingers crossed!

John

I had to JB weld a truck back together just a couple of months ago on one of my Williams scale heavyweights due to zinc pest. I have had some sideframes crumble on my Williams PA's to the point that they could not be used. I also had to get replacement scale streamliner trucks from Williams under warranty many years ago because the sideframes broke up shortly after I bought them.

Michael DeSandro

Troy, AL

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