Does the CRV have a balance shaft, like the early '90s Accords? If so, it will be
'extra fun'. (2 timing belts, 2 tensioners)
Typically, it takes something like
250+ foot pounds to get the crank pulley bolt loose. On a '90 Accord, I had to make a special tool to hold the crank pulley still so I could use a 3' pipe on a breaker bar to get the bolt loose. Tried 2 different impact guns first - wouldn't budge!

Happy Motoring,
Mark

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DrDKW