Engine/Transmission (1998.5 - 2002) Cratered my 02' Ho with 78K

[JaMan]

Well about two weeks age I started hearing a slight rattle at 2500rpms and up barely noticeable unless you drive it everyday Last week on Friday morning I left out to South Texas and the motor started nocking terrible so I returned it to the house and left. Mon. I had it towed to the Dealer and he said it had a scored cylinder on #5 and they are preparing to put a new short block in it. He called my wife on Friday and said the clutch looked worn and could put one in for the cost of the clutch since the motor was already out no labor. The Con OFE is only a year old and about 30k on it so I hope he is just confused at what he is looking at. Anyway , getting a new shortblock this week hope this doesn't happen again how rare is this? Mechanic said he thought something might of gotten in thru the AFE but I don't see how.



Oh well, :{ :{



Jared

 

[jaybigboy34]

Wow, that really sucks. Let us know if they find out what happened. And sorry for the loss.

 

[RJPotts]

You're getting a new block? Why not just replace the cylinder liner?

Just my 2 cents.

I would have to imagine that would be cheaper.

-R. J.

 

[RustyJC]

You're getting a new block? Why not just replace the cylinder liner?

Just my 2 cents.

I would have to imagine that would be cheaper.

-R. J.

Maybe because the Cummins ISB is a parent bore engine. It doesn't have cylinder liners. Those start with the ISC and larger.



Rusty

 

[RJPotts]

Oh, that would make sense. I didn't know the light duty Cummins didn't have liners. I'm a CAT tech in training and everything we play with has liners. I guess I'll take my 2 cents back and put them in my pocket for a rainy day.

Sorry for the bad advice, now I know.

-R. J.

 

[Hohn]

Rusty's right. It DOES beg the question of why they can't bore it and use an OS piston.



jlh

 

[flattracker]

Could be a clogged cooling noozle but at the fueling level you are running most likely high egt's and an overheated piston trying to seize. The egt you see on your gauge is just an average of the six cylinders and at highly elevated fueling levels like you are running one cylinder with a leaking injection nozzle can easily go high enough to cause serious damage and never show on the gauge. Are they going to warranty the engine with those mod's ?

 

[RustyJC]

Rusty's right. It DOES beg the question of why they can't bore it and use an OS piston.



jlh

That's one possibility. Another is to bore it and dry-sleeve it back to standard. Dry sleeves have their own problems, however - heat transfer and retention issues being two.



Rusty

 

[flattracker]

RJ caterpillars 3200 series and 3116 also are parent bore engines.

 

[JaMan]

There is a TSB about clogging oiling ports I think but they are just replacing the block, the mech said they have 10 and 20 thou. over pistons that they would use if it was my dime. They think it was something out of my control, so they are replacing it. Now waiting on some parts shortblock is in place.



Jared

 

[flattracker]

That they would warranty it with those mods you have a great dealer there hang on to them.

 

[wolfman00hd]

Jared,



Did you take it into Kade? Sorry about the disaster, hope it all goes back together well.

 

[JaMan]

No names mentioned here...

 

[Gary - K7GLD]

... I'd take a NEW shortblock over a REBUILT old one ANY day! Oo. Oo.

 

[obert]

If you bored the hole you MUST put a liner in, unless you do all 6. The power inbalance could potentialy (read "probably") break the crank.



I Lost 5 and 6 to fram clogged nozzels. I tried to get them to bore out and run oversize but DC paid for it and they wanted a stock shortblock. I couldnt gripe for the money... ...

 

[JaMan]

No Fram here but I suspect the same problem DC put a new short block in it and now it's back. They covered everything. Happy again.



Jared

 

[JaMan]

Another quick thought is the compresion, I know that a HO has 17. 5/1 and a ETC has 16. 5/1 but is the differences in the head, headgasket, or the block? Could it be possible that they lowered the compression on my motor by putting a etc short block in it?

 

[JeffWhite]

I am under the impression it is different piston crown shape (volume) that

bumps up the compression . Don't personally know how to tell the difference

though. Maybe someone here does?

 

[Hohn]

Another quick thought is the compresion, I know that a HO has 17. 5/1 and a ETC has 16. 5/1 but is the differences in the head, headgasket, or the block? Could it be possible that they lowered the compression on my motor by putting a etc short block in it?

Per Cummins, HO is 17:1, SO is 16. 7:1



The difference is due to the compression height of the pistons.



jlh

 

[Beast2B]

Another quick thought is the compresion, I know that a HO has 17. 5/1 and a ETC has 16. 5/1 but is the differences in the head, headgasket, or the block? Could it be possible that they lowered the compression on my motor by putting a etc short block in it?

Is it doing something different than before the rebuild? Boost? Smoke? Power? Or are you just wondering if they used whatever was the quickest available shortblock?