Engine crank shaft emergency!

[Pedrogra99]

Hello friends! I need some advice. Today I was driving my 2001 Mitsubishi Pajero when I noticed a screeching sound coming from the engine followed by a stiffness in the steering wheel. I immediately pulled over and popped open the hood. I noticed that one of the belt pulleys on the crank shaft was totally lose and was touching the radiator fan. I took it to my mechanic, and he determined that the bolt that holds the pulley to the crank shaft had gotten loose and had broken off. After inspecting the bolt and the socket, they said that the bolt and where it screws in had been worn down due to the bolt being loose. They say they might be able to make a new socket to make a bigger bolt screw into but if that doesn’t work they will need to take out the crank shaft entirely and either make an adaptation to screw a new bolt in or just replace the entire crank shaft. Has this happened to anyone else? Anyone have any advice on how to approach the situation? Any help is greatly apricated! blob:

[Lance]

Gooday Pedro.
From my knowledge of Pajeros this doesn't sound like a common issue.
Is there any chance of some pics of the damage ?

[disco stu]

It seems to be all to common on the petrol engines. Lots of threads here discussing the crankshaft bolt coming out or breaking

[Pajshomoneroguntero]

I recall on the NJ with a 6G72 being recommended to use a strong threadlock on the crankshaft pulley bolt.

[Drewan]

If the bolt has broken off the thread or most of it in the crank might be ok. Worst case mabey a bottoming tap of a different thread and a trip to independent fasteners and get a new bolt with the different thread machined up. Cant see it being worth a new crank