Geza-aka-Zombo wrote: ↑Tue Mar 16, 2021 4:16 pm
Interesting that the wear is on the top of the teeth, none really on the inner surface which transfers the drive load. I get the sense this indicates too much tension in the belt. Perhaps the experts here can comment.
Passenger side is usually much more worn that driver's side. And it's the passenger side gear that is closest to the tensioner roller. The left (driver) side has less belt wrap. Slightly. So maybe more 'load' on top of teeth rather than sides?
If I recall correctly, whenever I've seen driver's side cam gear wear far in excess of passenger it was '85-'86 32v.
Most of the 'fleet' has too much history to confidently assess cause and effect. Maybe at the last belt or belt before the last the cam gears were swapped to 'even out' the wear? Who TF knows.
The original gears - in my experience - should last 75k-100k miles with an always-properly tensioned belt. I have seen gears worn sharp after 5k-miles on the first non-factory belt (17k-miles total) with a far-too-tight belt. I have see a belt missing 11 (or was it 12?) teeth (in a row) after 3k-miles with a tensioner screwed all the way in.
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