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Opening up my new-to-me '96 DX w/ D16Y7 because of a broken spark plug. Figured I'd replace the timing belt/water pump/tensioner while I was at it since they were last done about 10 years ago.

From what I can tell, it looks like this was installed one tooth off. First time working on a timing belt, so I'd appreciate any input. I was going to just match the previous belt installation, but now it seems I might have to do things a bit more carefully.

Strangely though, it seems to be running fine, although my other car is a '96 Jeep, so it's not hard to sound and feel better than that.

If this is a tooth off, would any damage be expected? I think about 30,000 miles have been put on it since this belt was installed. Should I check anything else out while I'm at it?

Thanks for any input.

*edited with better pictures*

I'm actually thinking it might be correct after all. If I were to adjust by one tooth, I'd be wrong in the other direction. I'm guessing belt wear and stretching has allowed the camshaft to lag slightly behind the crankshaft. How about those fancy Gates RPM 'racing' timing belts? I definitely have no need for the extra strength, but if abrasion and stretching are the issue here, then it seems like that one might perform better for longer. To be clear - I'm not worried about an OEM belt breaking, just wondering if the RPM belt might keep timing more accurate for a longer period.

 
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To me it looks like it's off a tooth but it's hard to tell. Line the crankshaft up then see what the camshaft looks like?

 
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Already took it off unfortunately, but I'll get some pictures when I get the new one on!

Would it be running obviously rough if off by a tooth?

 
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Not necessarily, you should notice something though.

I worked on a friend's 2004 CR-V a while back. Timing chain was off one tooth, it was down on power and had a fault code. It still idled and drove just fine though.