Is the oilpan supposed to have this??

[pctrans]

Well, dropped the pan today, and found out why the 250 sounded like a garbage disposal. Looks like the #5 liner grenaded. Piston is still in the top part of the liner, so no "apparent" damage to the block. Will pull the head tomorrow and see if we can figure out "why" this happened.

 

[dpsmith]

Were you on the road with it or at home? Bet that was a sound you want forget.

 

[doghead]

I don't think that's covered in the TM...

 

[pctrans]

Had just left for the GA Rally, and was about 20 miles from the LZ.

 

[Bighurt]

Ouch, good looking truck to...

Can't wait till I get mine.

 

[RAYZER]

Wow!!

 

[NDT]

File a claim with GL.

 

[Warthog]

File a claim with GL. I'm sure they said it Starts and Runs.

 

[FASTNOVA]

Yeah, I'm sure they will give you a partial return on your money.

Sucks what happened. Seems to have been maybe a crack in the liner. Do the pieces of the liner show any pitting on the outside of it?

 

[clinto]

I think you broke it.

 

[hndrsonj]

Timtrucks has a stripped down 250 for sale.

 

[kipman]

Can't you glue the liner back together?

 

[gimpyrobb]

Wow Pete! Must be the year for shattered liners. Stretch just had one in his M108 go after the MVPA nationals in Dayton.

 

[Floridianson]

Remove the rest of the liner and piston and just reconfigure the fireing order.
You will have the first 5cyl. NHC250

 

[patracy]

Remove the rest of the liner and piston and just reconfigure the fireing order.
You will have the first 5cyl. NHC250

Wouldn't it be a NHC208.33333333333?

 

[R Racing]

You dont see that happen often !! bet that made a heck of a noise !!!

 

[Stretch44875]

Mine wasn't loud when it went. It was idling and started knocking. It's amazing how much metal a broken liner makes!

Hoping the bore is okay in my engine, haven't pulled the heads yet.

 

[dozer1]

Subscribed. My bet is that there will be collateral damage to the block or crank, rendering an engine that encounters that failure useless. Sucks to see that happen. You probably know that if you can find a good running takeout, that is most likely the most economical way to repair your truck. Keep us posted on the repair .

 

[APM215]

I have seen this happen on larger diesels before. Cat 3412 and even the EMD 710. Every time I have seen this happen it was caused by the “pee pipe” failing and that cylinder overheating due to a lack of lubrication and cooling by the oil. The cylinder liner and the piston swell from the heat and the piston seizes in the TDC position. Then, on the down stroke the con-rod is ripped off the bottom of the piston and slaps around in the liner until it destroys it. Sometimes it hits the piston again and pushes it up into the head and valves. After the con-rod slaps around for a while and the end of it is low enough to clear the liner, it will punch its way out the side of the block. Here are pics of a 3412 gen-set that did the same thing.

 

[pctrans]

Got the head off today. Looks to be in good shape, but will take it in to be checked for cracks. Now to find some piston/liner sets....anyone know of a good source???