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THROWN PISTON CN#2699

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  • Member since
    June 2004
  • From: roundhouse
  • 2,747 posts
Posted by Randy Stahl on Tuesday, January 25, 2011 2:09 PM

The heads are welded to the liner and pressed into the housing, The latest greatest thing , we are scrapping all of our 2 piece liner heads and putting in new liners with welded heads. I gotta admit , we are having fewer failures from O Ring water leaks.

 

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  • Member since
    February 2010
  • From: Hillsboro, Oregon
  • 934 posts
Posted by Eric97123 on Tuesday, January 25, 2011 12:25 PM
  • Member since
    January 2001
  • From: Atlanta
  • 11,971 posts
Posted by oltmannd on Tuesday, January 25, 2011 9:34 AM

creepycrank

I first saw this on the Cargo Law website a couple of years ago. Cargo Law usually specializes in ship wrecks. I'm not that familiar with this engine but it looks like the head/liner assembly is held in place and the bolts broke. This type of failure seems to be a classic fatigue failure where somebody forgot to torque the bolts properly.  I understand that on the FDL engine that the liner is welded to the head because with the higher firing pressures to make 4400 hp they couldn't keep the gaskets in it.

The head is a separate piece - unless GE started doing something new in the past decade. 

What I don't get is why the piston left with the jacket/liner/head assembly?

-Don (Random stuff, mostly about trains - what else? http://blerfblog.blogspot.com/

  • Member since
    January 2009
  • From: Poulsbo, WA
  • 429 posts
Posted by creepycrank on Tuesday, January 25, 2011 8:20 AM

I first saw this on the Cargo Law website a couple of years ago. Cargo Law usually specializes in ship wrecks. I'm not that familiar with this engine but it looks like the head/liner assembly is held in place and the bolts broke. This type of failure seems to be a classic fatigue failure where somebody forgot to torque the bolts properly.  I understand that on the FDL engine that the liner is welded to the head because with the higher firing pressures to make 4400 hp they couldn't keep the gaskets in it.

Revision 1: Adds this new piece Revision 2: Improves it Revision 3: Makes it just right Revision 4: Removes it.
  • Member since
    June 2009
  • 42 posts
THROWN PISTON CN#2699
Posted by HERBYD on Monday, January 24, 2011 7:39 PM

RECENTLY RECEIVED AN E MAIL ABOUT CR #2699  WHICH THREW A CYLINDER ASSY. & PISTON

PISTON WENT THREW THE ROOF & LANDED IN KITCHEN OF A RAIL SIDE HOUSE.(WITH PICTURES) 4400 HP  GE  ENGINE. WHAT HAPPEND.ANY FEED BACK FROM ANY BODY WORKING ON THESE ENGINES. IM AN EMD FAN BUT I LIKE THIS GE 250 ENGINE  HERBYGD@AOL.COM

Tags: GEVO

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