CK25 engine problem

[Jkrph]

I have a CK25 with 800 hours on the engine. I changed the oil, and when I removed the drain plug from the left side, 3 pieces of metal dropped out. Once I got them cleaned up I could see they were gear teeth that had broken off. The engine starts and runs perfectly. The teeth are very shiny, like they are chrome plated. Each one is about 1/2 inch long and 1/8 inch tall.

Can anyone point me to which gear these may be from so I have a place to start looking?

Thank you.

 

[xcgreene]

*Have a picture of the pieces?
*When was the last oil change?
*Were there many smaller pieces of metal/flakes that might indicate grinding?
*Any notable noises?


Def want to be careful here. If this is some of your timing gear that is failing, it could destroy the engine if it fails completely. this may be a great thing you have found early. A scope could tell you more if it can be a bit better pinpointed.

 

[Amvcane]

Is it possible for broken injection pump gear teeth to make their way to the oil pan?
What year is the tractor and can you please post a pic of the pieces.

 

[finn1]

I wouldn’t run the engine anymore until the source of the debris is identified and the problem fixed.

I would look into the front gear train, particularly the injection pump drive.

I remember there being similar issues with Cummins B series engines in the mid 80s. The broken gear teeth would eventually jam the gear train and break the front cover and block.

 

[Jkrph]

My photography skills aren’t much.

I last changed the oil at 700 hours.

There was no sign of any metal pieces, shavings, dust, etc.

There has been no smoking, noises, or hiccups of any kind. I haven’t been using it since I found the teeth in the oil.

I’m thinking I need to take the front gear housing off and see what things look like.

 

[thepumpguysc]

The "look like" starter teeth.?? easy enough to check..
That would scare the bajesusoutame too..

 

[thepumpguysc]

They "look like" starter teeth.?? easy enough to check..
That would scare the bajesusoutame too..

 

[DK35vince]

They "look like" starter teeth.?? easy enough to check..
That would scare the bajesusoutame too..

Problem is I don't know how starter teeth could get in the engine oil.
Starter teeth would fall into the bellhousing.

 

[ritcheyvs]

View attachment 606114 My photography skills aren’t much.

I last changed the oil at 700 hours.

There was no sign of any metal pieces, shavings, dust, etc.

There has been no smoking, noises, or hiccups of any kind. I haven’t been using it since I found the teeth in the oil.

I’m thinking I need to take the front gear housing off and see what things look like.

Definitely not Injection pump gear teeth, which are tiny and look almost line needles, maybe 1/4 inch long.

 

[finn1]

Realign those three pieces and it almost looks like a woodruff key that was left in the engine during assembly and snagged somewhere in the geartrain and broke into three pieces.

Take the pieces to your dealer and have the service manager pull up the exploded view of the geartrain and pump drive. A couple of the gears will be keyed, including the crank, cam, and pump gears.