By ChrisZ - Thu Jul 07, 2022 7:57 pm
- Thu Jul 07, 2022 7:57 pm
#159527
So talking to people at SITM about belt changes and the consensus was that no one has seen a 928 belt fail.
What apparently fails is the items touching the belt. Idler pulleys, water pump, tensioner pulley, gears. All resulting in the item jamming, smoking the belt, then causing a failure either immediately or upon a restart once the molten belt is welded to the item in question.
So why replace the belt? Instead just pull and replace all the pulleys+pump and be done with it. One can set the car to 45 degree time, mark the belt at the engine and each gear, then put it back on.
What apparently fails is the items touching the belt. Idler pulleys, water pump, tensioner pulley, gears. All resulting in the item jamming, smoking the belt, then causing a failure either immediately or upon a restart once the molten belt is welded to the item in question.
So why replace the belt? Instead just pull and replace all the pulleys+pump and be done with it. One can set the car to 45 degree time, mark the belt at the engine and each gear, then put it back on.
- No more underneath to remove the starter and lock the flywheel.
No more 300 ft pounds of torque on the crankshaft pulley
No more futzing with the resonator
Etc.
1986.5 928S Prussian Blue, daily driver
1997 944S Crimson, owned 30+ years now
2000 Honda Insight (the "Not Porsche")
1997 944S Crimson, owned 30+ years now
2000 Honda Insight (the "Not Porsche")