Crank Pulley Broke?

[Mr.PFloyd]

listne, this happeend on my brothers car so i do not know exactrly what happened. but he was driving, and they heard the car slightly tapping. not metal but liek some small thing. Anyway so shit continues, and they hit 1 speed bump and the whoel crank pully bolt broke off. now the crank pulley is broken. I have not seen the car so far. but what are your takes on this situation? no belt snapped, just tghe pully broke off. So is this a rebuild? Or is this just some PITA?

 

[Mr.PFloyd]

okay the key off the crankshaft broke. its rebuildtime isnt it?

 

[silvergsx623]

my na did that... (3 years ago)
and i slid the key back in, got a new crank pully and JB welded it all on.

it held for 2 weeks... then i totaled the car. but hey the pully was still on.. lmao all though the raidiator was smashed into it

 

[Mr.PFloyd]

lol okay were not going el cheapo here. is there a possibility we could get someone to weld on a new key?

 

[silvergsx623]

i suppose it is possable to weld the key on.

if moneys not a problem do a rebuild and get a new crank.

 

[GrimJack]

Machineshops have a tool that will cut a new groove for a keyway into the crank. They might even be able to do this still in the car.

You would have to get a matching cut in the crank pulley, too. That's if the remains of the key didn't hone out the inside of the crank pulley by a huge amount, which is very likely.

I went the JB weld route myself for a while, lasted a couple months, then it ate the pulley instead of the key.

 

[Mr.PFloyd]

cool. any ideas, but could this possibly cause overheating?

 

[GrimJack]

You bet. This pulley runs the waterpump, power steering, alternator, and AC compressor.

No water pump = overheating.

 

[Mr.PFloyd]

jesus at elast this isnt the headgasket maybe! we did all of the possible things we could check. car still overheated. jesus this makes a good day for spending another 1k on the motor

 

[mkIIIman089]

Was it removed and not torqued properly? Or do you not know what caused it?