2006-12-01 12:19:52 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Too loose, incorrectly sized, misaligned pulley, interference...lots of reasons. But a V belt flipping is incredibly rare; heck, get a new one and try to turn it inside out with your hands without installing it in the car, damn near impossible.
Chances are the belt was installed upside-down in the first place, which is really, really hard to do. The only reason I can think to do that is if (a) the belt was oversized, and someone thought that turning it inside out (and so having the wider part on the inside) would somehow take up some slack, or (b) the belt was slipping, perhaps due to a seizing AC compressor or something, so they installed the belt inside out so that the wider part would grab higher up in the pulley, and prevent slipping for a short period of time.
2006-12-01 12:24:02 · answer #1 · answered by daveowenville 4 · 0⤊ 0⤋
Extremely loose, wrong belt, totally worn out belt or a horribly misaligned pulley.
V-belt "flipping over" is really not uncommon in belt drive systems that rely on a pulley type "clutch" which simply takes all of the tension off the belt when it is disengaged - and the belt is usually parallel to the ground - a riding lawn mower is a good example, for instance. When this belt gets worn and stretched out, it will usually start "rolling" in the pulleys.
2006-12-01 13:01:32 · answer #2 · answered by LeAnne 7 · 0⤊ 0⤋
Pulley misalignment.
2006-12-01 12:21:43 · answer #3 · answered by Scythian1950 7 · 0⤊ 0⤋
loose belt tension
2006-12-01 12:24:09 · answer #4 · answered by Anonymous · 0⤊ 0⤋