ever break a rod in a cummins isx 450?

[portcity_gt]

i have this lil dumpling up at work

 

[futureSVT]

wow what caused that

 

[tj04cobra]

wow what caused that

+1, interested in knowing what caused that as well...

 

[SRV1]

wow what caused that

High rpms

 

[portcity_gt]

wow what caused that

we're not sure yet.

but the truck has had a egr cooler failure in the past, so im thinking maybe hydralock??

 

[portcity_gt]

High rpms

i doubt that was the cause, these things max out at like 3,200. and the revlimter wouldnt let it go too high.

but you never know with these truckers, the ecm will tell us everything the engine was doing at the time it took a shit.

 

[Sonic605hp]

goddamn

 

[99cobrablack]

Not the first ISX rod failure I've seen, but never in the middle of the rod though... Is this a pre-DPF motor??

 

[moddestmike]

HAHA damn. Now THAT is catastrophic failure.

 

[portcity_gt]

Not the first ISX rod failure I've seen, but never in the middle of the rod though... Is this a pre-DPF motor??

im pretty sure it was a dpf truck, i think its an 08-09 (not sure though), i'll get some more details monday.

im a painter at the pete dealership, so im not in the loop as much as the service techs.

 

[youlose]

My shop just did and overhead set on a fedex truck today with an ISX 450. Haven't seen one let go yet though.. We did have a dt466 truck that almost popped because of an exhaust backpressure sensor. Saw 300 degree coolant temps and the driver just kept on goin'.

 

[supercarkiller]

dayummmmm!

 

[Nvr_Spds]

Ive fixed more than a few broken blocks before, but NO WHERE near that bad!! Thats a serious accomplishment right there!

 

[monkeyspunk79]

Would a mechanical over-rev do it from downshifting into the wrong gear?

 

[svtmadman]

Never seen that before on such a late model plant. I doubt it over-reved....but who knows. Shoulda bought a mack but im partial.

 

[nik96]

Would a mechanical over-rev do it from downshifting into the wrong gear?

That's my bet.

 

[05 GT]

Should've bought a Cat.


J/K We have our problems too. Thats a piece to be proud of. Any chance of getting that block when your done? I need to make a table.

Josh

 

[EVO32570]

Would a mechanical over-rev do it from downshifting into the wrong gear?

You cant over rev them things. They have rev limiters on them. Even if you miss a shift your not gonna over rev it. The EGR motors that the EPA has required now run so hot compared to what pre-EGR motors ran. Internal temps are extreme now and the engine builders have not quite figured it out yet. Any of them. These motors break all the time. Ive never seen one that bad though. Probably a bad part combined with heat.

 

[EVO32570]

Cats are the biggest POS on the road anymore. Every truck in our company has went thru 2 Twin Turbo set ups and all are on the second motors. They wont even order a Cat anymore. Pre EGR cat was the bomb. These ones are just crap now. I dont even think Cat is making a road motor anymore.

 

[Great Asp]

some bondo will fix that right up like new!

:lol1:

E