Usually you roll the chain in by attaching the new one to the end of the old one after cutting one of the links open on the old chain.

You can't replace the guides with the chain in the way - you'll need to remove the cam sprocket and pull the chain out of the way while you replace the guides (careful not to let it fall into the engine). I have a pretty good guide that is for sale from **************.com called "preventing catastrophic V8 engine failure" that details the whole procdure for replacement of both the chain and the guides. I recommend you get that booklet or another like it to help you through the job - there are lots of tips like how to get the pins out that hold the guides in place.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz