You'll be taking the camshaft sprockets off, or at least the timing chain, so be prepared for putting all that back together. Apart from that, if you're replacing it because the gasket's blown and you have coolant in the crankcase, it might become quite a big clean-up project. You might want to get a copy of the Mitchell's or ALLDATA repair/replacement procedure before you go any further. That will give you a good indication of the extent of the project.

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Simon Shearer

1986 420SEL

2000 Porsche 911 Millenium Edition Carrera 4
2010 Lexus RX 350
2002 Kia Rio
2002 Hyundai Accent