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Sumo · 05-02-2017, 04:00 PM

Hey everyone,

Bought a used 40th back in September and last night I noticed some minor belt squeak. Popped the hood and noticed the crank pulley wobbling like hell. Put it on a lift and re-torqued. We think the previous owner installed a lightweight pulley and didn't torque correctly. I still need to confirm it is an aftermarket pulley.

So here are my concerns... How would it last for 7 months with a loose pulley? Shouldn't I be worried about what caused it to back out (harmonic vibrations, cracked pulley, etc.)? What should I look for to confirm the engine isn't done for?

05-02-2017, 04:00 PM	#1 (permalink)
Sumo Base Member Join Date: Sep 2016 Location: Florida Posts: 29 Drives: 10 Nissan 370z TS M6 Rep Power: 9	Crank Pulley Came Loose Hey everyone, Bought a used 40th back in September and last night I noticed some minor belt squeak. Popped the hood and noticed the crank pulley wobbling like hell. Put it on a lift and re-torqued. We think the previous owner installed a lightweight pulley and didn't torque correctly. I still need to confirm it is an aftermarket pulley. So here are my concerns... How would it last for 7 months with a loose pulley? Shouldn't I be worried about what caused it to back out (harmonic vibrations, cracked pulley, etc.)? What should I look for to confirm the engine isn't done for?