The problem with chriscos idea is that if you do this yourself you wont be able to see the 12 mm bolts that hold the PP on to get the wrench on it. Not impossible but not fun either. If you do it my way you can stay right where you can see the 12 mm bolts to put the wrench on it.
The easiest (and this will easily save you a half hour or more) is to have your friend stand at the front of the motor (he dosent even need to get under the car, or get dirty) and put a 19 mm ratchet on the crank and rotate it for you on your command and then hold pressure against you every time you losen each bolt. This take less than 10 minutes, upon install just make sure you have all fasteners installed before you start torqueing any ONE of them down.
but I didnt have enough room for either a ratcheting wrench or a socket. I needed to use the closed end of a conventional boxend wrench, like a snapon, mac, matco or the shiny polished craftsmen wrench. Then I just broke it loose while jaming another wrench in between the flywheel trick, then removed the jammed wrench and advanced the crank to the next bolt so I could see it (kind of a pain by yourself).
Oh well enjoy
