When big engines blow up

[nynco]

Somehow, I dont think driving it in did anymore damage then towing it in,lol. What did this guy do to take the engine to 2900rpm? Think its a testament to Cummins, it still ran!

One thing I have learned in mechanics. The second you think there is something wrong, stop. Best example is detonation. If you hear it knocking or the computer shows, don't push it, fix it.

If this guy had thrown a wrist pin. Well that is bad news. But driving it longer with all the metal bits crunching through other parts of the engine or the cuts back on the amount of salvageable parts. Who knows, maybe the block could have been saved and just over bored a little. I am not an expert on big engines by any stretch. Just using stuff I have learned from turning wrenches in the past.

[rondog]

"Here Bubba, hold mah beer. We'll get this sumbitch over the hill".

[mcantar18c]

One thing I have learned in mechanics. The second you think there is something wrong, stop. Best example is detonation. If you hear it knocking or the computer shows, don't push it, fix it.

If this guy had thrown a wrist pin. Well that is bad news. But driving it longer with all the metal bits crunching through other parts of the engine or the cuts back on the amount of salvageable parts. Who knows, maybe the block could have been saved and just over bored a little. I am not an expert on big engines by any stretch. Just using stuff I have learned from turning wrenches in the past.

I learned the same lessons and came to the opposite conclusions as you (shocker).
If there's internal engine damage, its usually easier and cheaper to simply replace the engine. The last instance I had was with my 79 CJ7. Threw a rod on the highway about 7 miles from home. Pulled over, popped the hood to check it out, decided it was f*cked and said screw it and drove home. It would have cost me hundreds in parts and labor for new pistons and all that goes with them, to have the block machined and bored out, etc. I paid $100 for a complete, running replacement long block, swapped it in, and it was good as new. Then I made $200 off the blown engine between selling good parts and the scrapyard.

[nynco]

I learned the same lessons and came to the opposite conclusions as you (shocker).
If there's internal engine damage, its usually easier and cheaper to simply replace the engine. The last instance I had was with my 79 CJ7. Threw a rod on the highway about 7 miles from home. Pulled over, popped the hood to check it out, decided it was f*cked and said screw it and drove home. It would have cost me hundreds in parts and labor for new pistons and all that goes with them, to have the block machined and bored out, etc. I paid $100 for a complete, running replacement long block, swapped it in, and it was good as new. Then I made $200 off the blown engine between selling good parts and the scrapyard.

Well, may be true with your engine. Something tells me a new block in that Semi is not so cheap. Blocks are not always cheap nor readily available for all engine types. Esp newer cars. If you got a common car, well that makes life easier. Regardless, you are talking about a thrown rod. When you got metal running all over the wrong places, then you got problems going to all parts of the engine too. Drive it more and perhaps you need a new head too. Pistons banging against a head over and over and over will kill it. Look at the face of the head from constant impact damage. It looks like the guy lucked out and did not bend a valve. I myself would most likely replace those valves on that cylinder to make sure. Drive it more and you could send metal into the oil pump. Lock your oil pump and the whole engine is toast. Stop and you avoid further damage and can salvage more, thus lowering your costs.

[cofi]

thatll buff right out