RedBlackYellow

in the timing belt install it looks like it's holes are super close to the teeth and looks like one of the 4 90 degrees angle could break off at any time if it were to burn up. What is the size rusted bolt-head that holds it up there? Anyway, the piece i'm referring to is the round circle with teeth about 4 inches in diameter in the bottom of this picture.

<img src="https://www.audiworld.com/tech/pics/eng35/beltpath.jpg">

quattrokiwi

its the crank sprocket, so it gets up to runing temp, but never hot like and exhaust

Ritz

I'm not sure I understand your concern...all those gears reach approximately the same temp.

RedBlackYellow

with the hash marks on it to keep it in line when changing the belt and tensioner, but at the 12 o'clock position of the sprocket around the top tooth it looks like it may have premature wear from heating and cooling rapidly and being such thin metal at that portion. Just a curiosity, figure it's a 1 in a million chance to loose one of those teeth up in the belt anyway.

Ritz

timing belt that broke. Ever. Absolutely nothing to worry about there. Good luck with the TB change.

Cheers,

RedBlackYellow

thanks for reassuring me. now to find all these parts for durt cheap!