The part that don"t sound right is that they suggest a fraction of a tooth. 46.8 for Z1? Should I just round that off to 47 or am I not getting something here?

 

 

If the original marks on the timing belt are worn or faded, make new alignment marks in the positions indicated-1998-2004.

• Make alignment and/or arrow marks on the timing belt in relation to the sprockets as indicated in the accompanying illustration.
  
  • Z1: 46.8 tooth length
    
  • Z2: 43.7 tooth length
    
  
  

i don't think those numbers are right.

iirc,

one side is a whole number,

and the other side is a half.

so instead of the mark being on the tooth, it is on the valley, or vice versa.

 

but it has been a while since i did one.

 

what year, engine?

When I did my belt a month ago, no matter what I did one side was half a tooth off. No matter how I routed it or whatever it always ended up that way and it made the timing mark on one side off by just a half tooth. What I ended up doing was making it so that when I pulled the tensioner pin it would pull it back and they ended up in line. So maybe these numbers are right?

What year and engine are you working on?

Sorry but its 1999 forester

Should be

Z1: 44

Z2: 40.5

 

 

The spec you found on google looks like its for 05 and later 2.5 with the AVCS heads. Those are wider.