Stephen Grief shared a post of a GE power assembly that had shot out of a diesel locomotive. Note the tracks at the top of the first photo. That gives you an idea of how far this assembly went. The piston went even further. It went through the roof of a house (6 and 2), down through the ceiling (3) and embedded itself in a wall (4).
|Richard Wineman commented on a share|
should look like this
John Corum Richard Wineman Alco??
[Richard "liked" John's comment, so I assume this one is for an Alco engine. Even though Alco no longer makes locomotives, their engines are still made for other applications such as marine (boats).]
|EMD/Winton 201 [DeBruler]|
A comment on this video explains the expected life of a power assembly:
BilgeDweller1 month agoI ran the engine room on an 8000 hp towboat powered by two 16-710's; we went 28,000 hours between overhauls. At about 14,000 hours, each engine got rebuilt cylinder heads and the piston thrust washers replaced. We ran the snot out of those things...To replace the cylinder head and piston thrust washers, I assume they just swap all of the power assemblies to get a boat or loco back into service and then do the replacement work in a shop so that the power assemblies can then be used in another boat or loco that needs repair.
The cause of the "blown power assembly" at the top of these notes was improper torquing of
the nuts that held the power assembly in the block. I read in one of the comments, which I now can't find, that they need 1,400 ft-lb of torque. I gave away my half-inch socket torque wrench, so I can't go look at its scale now. It was a beam wrench with an 18" handle similar to the one in this photo. But I think its scale topped out around 200 ft-lb. Given that spark plugs and lug nuts use a torque below 50 ft-lb, it was fine for my use.
|EncMstr [CC BY-SA 3.0], via Wikimedia Commons|