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Engine Specific Info and Questions => IDI Engine => Topic started by: Henchman on October 24, 2009, 03:05:37 pm

Title: AAZ crank failure results
Post by: Henchman on October 24, 2009, 03:05:37 pm

Pulling apart an AAZ yesterday and I found out why the previous owner said "it just stopped running".  Crank bolt had come loose.  Pulled the head and expected to see the usual, instead I met the luckyest pistons in the world.  The valve imprints don't even go as deep as the dishing.

(http://www.personainternet.com/iancolquhoun/pictures/partialcrankfailure.jpg)

This is normally what I see when there is a crank problem (the bolt sheared on this engine), minus the rust!

(http://www.personainternet.com/iancolquhoun/pictures/totalcrankfailure.jpg)

The head is in great shape from the first picture, better than I usally see.  Too bad about the crank bolt!

Ian

Title: Re: AAZ crank failure results
Post by: Black Smokin' Diesel on October 25, 2009, 03:38:16 pm

This is a lucky piston
(http://i229.photobucket.com/albums/ee139/truckinwagen/PA230004.jpg)

(Edited for language by mod... guys this is a family forum.)