TwinTurbo.NET: Nissan 300ZX forum - Anyone else had a timing belt walk back and shred?
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Subject Anyone else had a timing belt walk back and shred?
     
Posted by Rocket man on May 26, 2012 at 5:31 PM
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Message About 1/3 of my belt has been shredded by rubbing against the rear timing belt covers. Has any one else had this problem and found a solution? I put this belt on only 600 miles ago so it's probably an assembly error. Just need to find out what so I don't repeat.

It seems the only thing that prevents the belt from moving towards the engine is the washer behind the crank sprocket. This washer has a key-way, but slides on past the key and is loose with the sprocket. Is this correct? Then I had the beveled/cupped washer install concave out in front of the sprocket.

All my bearings and pulleys seem in good shape. Maybe one got installed at an angle? Not obviously, but something I'm still checking on. Any other ideas?


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90 300zx TT 13.285@106.08 (old stock turbo set up)
94 Camaro Z28 13.751@101.83
03 WRX 13.973@94.88
02 Mazda MPV; four kids and a wife don't fit in the Z.
90 240sx (sold) 16.9@87

     
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