www.clarks-garage.com is a good site for step by step info on almost any repair. The belt itself is easy to change but make sure the balance shafts and cam are all on the timing mark. Read clarks garage.
Good luck. Make sure you get to take the car out for a weekend after you get it going for your sister.
Speedy
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1983 944 guards red with 16" Fuchs, Host of Wisconsin area timing/ balance shaft belt tensioning party
1987 944S Purchased from Legion. Corvette LT-1 V-8 conversion with Mega Squirt II
Check on progress --->
www.porschehybrids.com/gallery/speedracing944
Favorite Road =
www.tailofthedragon.com 318 turns in 11 miles (11 min 20 sec best run)