Author Topic: AAZ crank failure results  (Read 1946 times)

October 24, 2009, 03:05:37 pm

Henchman

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AAZ crank failure results
« 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.



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



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

Ian
Under way - 1991 Passat Syncro Wagon w/m-tdi

1991 Passat GL Wagon w/AAZ conversion (now using engine/tranny from 1993 Passat

1993 Passat GL 1.9 Diesel (RIP 385k km, engine, tranny, clutch all original)

Reply #1October 25, 2009, 03:38:16 pm

Black Smokin' Diesel

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Re: AAZ crank failure results
« Reply #1 on: October 25, 2009, 03:38:16 pm »
This is a lucky piston


(Edited for language by mod... guys this is a family forum.)
« Last Edit: October 25, 2009, 05:19:56 pm by Vincent Waldon »
91 Passat syncro 1.8T swapped.