crankwalked??? I THINK NO !!

[damageinc0318]

Ive rebuild several dsm motors and had a guy dropped off a 97 gst for a engine. He just wanted a stock 7bolt put back in it,I rebuilt a core and its ready for drop in,when he bought the car he was told it was crankwalked. I tried turning the old motor over with the 1/2" ratchet and it would go half the rotation and stop then the same backwards. Didnt seem crankwalked but when ahead pulled it. I decided to go ahead and pull the parts off it for my stock pile and found a pretty bad explosion to say the least .






Never seen this happen before but it seared the keyway on the crank and spun the timing gear.





needless to say I dont got too many parts for my stock pile lol





Im sure you guys have seen worse but looks bad to me

btw is there a pic section on here for when 4g63's go bad

[bcjjones]

Damn

[boosted99_420]

Geeze was it stock when he had it? That is the worst ive ever seen.

[viperlp01]

looks savable.. Just replace the guides in the head and call it a day.. JK that thing is toast.

[damageinc0318]

The car is completely stock, I think the previous owner like to dogg the crap out of it. It had to be at a pretty high rpm when it seared the keyway. Something loosened up that crank bolt

[chrismx22]

Looks like he maybe over reved it. Like a missed shift or something. But yes that would def. stop the engine from rotating! WOW!

[91stocker]

Yep definitely crankwalk lol

[Empyre]

Yikes, those are some good pictures. Those valves must have been hating life before they broke in half, or I should say the crank key. 1 little key goes out and the whole motor ends up toast. =(

[rastmp]

WOW!!!...classic example of abuse and neglect..I think?