A Detroit 500 engine riddle, can it be solved

Ingesting oil is not self regulating and it does not pre-ignite. Also a clip-board will disintegrate if placed against the intake of a run away engine.

http://portal.woodgroup.com/portal/page?_pageid=0,1414661&_dad=portal30&_schema=PORTAL30

 

Clip-board is a bit thin.....

The con-rods WILL self regulate!!

Bill

 

A diesel engine is a compression ignition engine, if you draw in the oil with the air it will heat up and ignite before top dead center, and it is self regulating.
Please do not tell me I have not seen it, I have worked on engines as a licenced mechanic since 1973, I have overhauled more engines that 99% of you have ever seen. That is not bragging it is the truth.
I have taken off CAC and drained out about 7 gallons of oil never blew up. I live in B.C. we have mountains and units get hot, and engines have problems here that they do not in most places.
Ask a warranty clerk at any engine dealership where the highest warrenty claims are from. B.C. is #1 Oregon #2.
Nice story, it just does not happen!

 

If the oil being ingested does not preignite then it would not ignite.
You have never worked on an engine if you believe that a clip board will not shut down an engine when placed on the compressor side of a turbo.

 

Well that settles it, it never happened and can never happen......JohnP3 says so. I wish the engine would have known that. I guess the owner of the pickup here should have consulted you sir before he bought a new long block after it took off and ran wide open until it ate itself.

Since your retired I believe you should do a google search for runaway diesels and inform everyone else that their diesel cars, trucks, and yacht owners that what they though were their engines tearing themselves apart was nothing more than a figment of their imagination.

While I don't doubt you've overhauled a few engines in your day you've fallen victim to the "grump old man" syndrome where everyone is wrong except for you. Again, just because you've never seen it doesn't make it untrue.

 

I guess the early VW diesel engine in my car didn't runaway numerous times when oil was sucked into the intake because of a bad design with the crankcase ventilation system. This was a very well documented problem. I had to have an update crankcase ventilation system put on it. VW updated all the engines from the factory to stop this. Google VW diesel runaway and see what you find.

 

My money is on the CAC being full of oil and when the tech hit the throttle the boost pushed a little oil into the engine and the race was on. And the tech should have had SOMETHING to kill the engine with on a turbo install. A new turbo could be a bomb waiting to happen...

 

If somebody would have cut, the coupling hose that connects the CAC to the intake and pull the intake aluminum pipe down, it would have burn the oil coming in quickly and ran out of air oil mixture and died since the ignition was off.

 

Yep, never happened it was all a dream. They guy here's dream was so real his checkbook even believed it and was about $15k lighter when he woke up.

Someone should become a wal-mart greeter and maybe he'd stop being so grumpy and closed minded.

 

BrainHurtz, Thanks for the info w/hyperlink.

http://portal.woodgroup.com/portal/page?_pageid=0,1414661&_dad=portal30&_schema=PORTAL30