TwinTurbo.NET: Nissan 300ZX forum - A Lot of things happen when a motor implodes
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Subject A Lot of things happen when a motor implodes
     
Posted by Kyle(Houston) on August 10, 2017 at 9:03 AM
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In Reply To Ok but what happened to the #2 rod bolt nut? It's missing posted by ctheobal on August 09, 2017 at 11:32 PM
     
Message The nut was found in the pan broken in half.

How did both rod #1 and #2 break in half? Did Nissan not make them properly? NO....it all happened when the motor self imploded.

The problem I have is how much different the #2 piston and combustion camber look vs the rest of them. I personally think something was happening in that cylinder that caused everything to fail. Which could have started with a bent or broken rod and just imploded from there.

A loose rod bolt would not cause that pitting and carbon build up that is seen. That is due to some sort of issue(spark or fuel) in that cylinder. How do you explain that?

Also explain how a loose rod nut survived for 4 years, 15,000 miles, multiple dyno sessions, and some drag runs?? But caused this much damage on just 1 run??

If it has been loose why was the rod bearing not beat to hell and the crank damaged? How was it tuned with headphones and no knocking was detected if it has been loose this while time???

By your logic the nut was not torqued down 4 years ago and just now decided to loosen up and come all the way off in one single run.

Kyle "Grumpy Bear" Puckett
Import Parts Pro
Phone: 281-288-0700
AIM: KyleatIPP
Yahoo: KyleatIPP

     
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