I have done a bunch of these, Go step by step as the repair manual says. The belt tensioner requires a special tool to tension the belt properly. Use Loctite on everything and on the two bolts that holds the tensioner in place use silicone sealant to seal for water leakage. there is a kit available P/N 582042903 that has all the parts for this job. Also keep in mind the oil pump is timed Right behind is a plug to install a phillups screwdriver to hold pump in to position Mark all your sprockits/Pullies. The timing belt replacement has been pushed out to 6000 HRS. I also remove the battery / Holder to get a little better access to the motor.There is also a service bulletin on the correct placement of the tining belt tensioner. The kit has waterpump, tensioners timing and counterbalance belts. All this needs to be replaced while you are in there. just take your time in the first one you doand use locktite on everything.