Editing Timing belt (section)

===Crank Bolt===

[[Image:Cambelt crank bolt.jpg|500px]]

If you didn't follow the advice above, and are without a rattle gun, put a block of wood here, and brace the breaker bar on it.  Pull the lead off the ignition coil to stop the engine starting, then crank the motor very briefly.  Voila - loose crank bolt!  At the end you tighten the bolt up again, very firmly by hand with the breaker bar, or possibly with a torque wrench if you're excitable (car in gear).  Grease this bolt (well, grease all bolts) before you put it back on, and you'll get it off easier next time.  Do '''not''' use Loctite on this bolt.  Loctite on crank bolts is a common cause of them coming loose.  What happens is that the Loctite can bond before the bolt is fully tight, so the bolt appears to be tight, but isn't in its final position.  Vibration and heat break the Loctite, then the bolt comes loose, and the pulley comes loose.  (There are very few places to use Loctite, one place where it is useful is to keep studs in place.)