Crank pully failure?

Discussion in 'Mazdaspeed 3/6 Engine' started by Sleepin6, Jul 31, 2018.

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  1. Sleepin6

    Sleepin6 Patients equals more psi’s Silver Member

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    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.
     
    Sleepin6, via an iPad, Jul 31, 2018
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  2. CorkSport - Derrick

    CorkSport - Derrick Approved Vendor

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    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
     
    CorkSport - Derrick, Aug 2, 2018
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  3. 5doorsoffury

    5doorsoffury Silver Member

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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, via a mobile device, Aug 2, 2018
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  4. Sleepin6

    Sleepin6 Patients equals more psi’s Silver Member

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    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.
     
    Sleepin6, via an iPad, Aug 3, 2018
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