Crank pully failure?

Sleepin6

Sleepin6

Silver Member
Has anyone had there crank pully bolt come lose and crank pully actually break when being pulled off? The middle broke off of the pulley.
 
Wow.

I haven't seen it on a DISI engine myself. I have seen a few on some PWC Mx5s with the built 2.5 engines but they were spinning those to the moon.

-Derrick
 
Sleepin6 said:
Has anyone had there crank pully bolt come lose and crank pully actually break when being pulled off? The middle broke off of the pulley.
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Is it a unraped block? Sometimes people will jam shit into the crank pully while loosening and tightening the crank bolt. I can see how that may stress the metal until it fucks off and crumbles.
 
5doorsoffury said:
Is it a unraped block? Sometimes people will jam shit into the crank pully while loosening and tightening the crank bolt. I can see how that may stress the metal until it fucks off and crumbles.
Click to expand...
Bought it used so the condition of the parts is unknown. I had it rebuilt and the crank pulley was the original one with 158,000 but who knows if it was ever fucked with. I knew it was an odd situation to see it broke like it did. Thanks.
 
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