engine timing

[Brian MS3]

I'm currently timing my engine and while torquing and stretching the crank bolt I didn't notice that the bolt that goes through the crank pulley had bent slightly. This made my cams just a cunt hair off. is there any margin for error with this kind of thing or should I buy a new crank bolt and start over?
Thanks in advance

 

[Gandalf]

Start over, why take the chance.

 

[Mzr0818]

Yes you need to reset. Make sure the bolt through the crank isnt to long it is more likely to bend, also have someone hold the cams in place helps relieve some of the movement on the crank.

 

[865ms3]

I use a grade 8 bolt to lock the crank instead of the flimsy little pin that comes in the timing kits(make sure its the exact same length). lock the crank down. torque to the first torque value. spin the crank a few times and double check timing. if thats good i go ahead and do the final torque on the crank bolt with the lock in place and the cam plate removed. double check when done. Replace crank bolt and friction washers if you have already done the final torque.

 

[phate]

DON'T USE THE M8 BOLT TO HOLD THE CRANK PULLEY. Sometimes you bend and break the bolt (if you're lucky):

Other times you blow out the timing cover bolt hole:

Yes, sometimes you can get away with it. I've gotten away with it. I highly recommend getting something to hold the crank pulley in place.


For that cam timing tool, slip some feeler gauges in to true the cam to the plate:

 

[Patrick Martz]

thats not a cunt hair lol. Thats a god damn quarter inch off. I would be surprised if the motor ran right with it being that off. Gonna have to start over. Like said before get a nice strong grade 8.8 bolt that isn't too long.