Locomotive Diesel Engine Failure

[DennyDay]

Pictures of a piston rod from a diesel locomotive engine. Had an 8 inch crank journal. The mark in the bend of the rod was made by the piston skirt.



View attachment 63033



View attachment 63034









Denny

 

[jwgary]

Ouch! For scaling purposes, are those 12" or 8" tiles on the floor? That's a big rod.

 

[nickleinonen]

looks like 12" tiles... looks like a ge hdl [ac6000 engine] con rod... the new evo diesels [12 cylinder version of the hdl] has 4 bolts on the conrod while the hdl was designed with 2 studs]
non bent hdl conrod
-
bent fdl master rod
-

 

[Rotty]

What was the cause of the bent rod?

Hydraulic lock?

 

[GOlsen]

Ouch! For scaling purposes, are those 12" or 8" tiles on the floor? That's a big rod.

I think they're 8" tiles. He said in the post that the crank journal was 8", which looks like it would match up.

 

[nickleinonen]

What was the cause of the bent rod?

Hydraulic lock?

engine failure. . the other side articulating rod failed at the wrist pin and forced the other rod into a bad position on the following revolution. .

you can see here how the rod rubbed against the liner

-

 

[BGlidewell]

How much bigger is that piston than the one I am holding here?

#ad

 

[nickleinonen]

maybe 2x bigger... the piston is about 9" across, and i know the piston, pin and art rod combo weighs about 120lbs [i have one in the garage somewhere]. . the master rod alone weighs more than that.

https://www.getransportation.com/general/locomotives/parts/documents/20043-A_7FDL.pdf
https://www.getransportation.com/general/marine_stationary/Brochures/20078-C_V228.pdf
https://www.getransportation.com/general/marine_stationary/Brochures/20100-A_V250_Marine.pdf

 

[JasonCzerak]

How much bigger is that piston than the one I am holding here?

#ad

he he he he he



anyone tell you that you look like Hank Hill from King of the Hill / Bevis and butthead ?

 

[JDarr]

is that from a general motors diesel or general electric diesel engine??

 

[rbattelle]

BGlidewell, Jason's right you do look like Hank Hill in that picture. :-laf



I wonder what the heat treat process is on those rods that makes them bend instead of snapping like a twig. Don't most automotive rods snap instead of bend?



Ryan

 

[EMD-Run8]

The one that failed is from a GE. Nick, aren't the AC6000 engines made by Duetz? Ya know, one of these pistons would make a great outdoor ashtray! MMMMM------STOGEEEZZZZZZ!

 

[nickleinonen]

from what i remember from the training course i had at ge in erie, their hdl and evo engines are originally a MAN design. the fdl is a cooper bessimer design

the emd rods and power assemblies look much different than a ge
--

 

[BGlidewell]

maybe 2x bigger... the piston is about 9" across, and i know the piston, pin and art rod combo weighs about 120lbs [i have one in the garage somewhere]. . the master rod alone weighs more than that.



https://www.getransportation.com/general/locomotives/parts/documents/20043-A_7FDL.pdf

https://www.getransportation.com/general/marine_stationary/Brochures/20078-C_V228.pdf

https://www.getransportation.com/general/marine_stationary/Brochures/20100-A_V250_Marine.pdf

Wow! I had to swing that piston up and the camera snapped as soon as I had it in that position. That thing was heavy



-Hank/butthead:{

 

[BGlidewell]

he he he he he

anyone tell you that you look like Hank Hill from King of the Hill / Bevis and butthead ?

Good eye.

#ad

The writer grew up in Garland and is a friend of the family.
One of the characters is based on my brother Mark, who looks a lot like me.

 

[DennyDay]

The engine was a GE - - I didn't get involved in determining what happened, but it was the first trip on a rebuilt engine. The piston came apart, beaten to death by the rod hammering it. We found the rod on the pan beside the engine along with piston parts and about 300 gallons of lube oil - - there and in the sump under the engine.



The tiles are 12" the journals are 8".



Denny

 

[MHoverson]

Its been a while since I've seen a beat up GE rod and piston. I used to be a locomotive machinest at BN in the early 80's.



Keep them coming. There's nothing better than bent up locomotive engine parts.

 

[JDarr]

Im a Conductor for the UP down here in South TX i would guess we have prolly about 90% of the UPs AC60 and AC6000 fleet for rock train service

they are awesome A/C locomotives i would hate to have been on one that had that kinda damage

 

[nickleinonen]

well, we have another beauty in the shop right now. . it is a dash 9 ge [fdl engine] turbo let go, crankshaft split gear let go, cam sections damaged. . ge doesn't want to do an engine change out on it, so we are pulling all 16 cylinders off the block and inspect the valves and pistons for damage. . all good ones go back in the engine, all beat up ones get new ones. lots of work on that one [±10 days with 2 shifts per day working it. more if we don't have stock]

 

[rbattelle]

ge doesn't want to do an engine change out on it,

What kind of warranty do locomotives carry?



And what's "stock"?



Ryan