1992 Civic LX, 1.5l sohc exiting expressway and car died. Turned out that the timing belt pulley woodruff key broke. This pulley is a one piece aluminum, the key is part of the pulley so the whole pulley has to be replaced. I replaced the pulley started up ran fine for about ten minutes and then died. Same thing happened. I am a little stumped, has anyone else ever experienced this before?

 

The bolt needs to be really tight; it holds everything together. Make sure you have the guide washers in place on both sides of the timing belt pulley.

 

it needs to be really tight,i just went thru this and stripped my main crank out so bad i had to replace the motor.tork it down,or have a shop do it.i let it go and it cost me big.on a high point,its never ran better,800 bucks later

 

So the person who did some work on this a month or so ago did not tighten the bolt enough and it took a month or so to break? Then the second one broke in 10 minutes?