The CD manual isn't specific on which way a new upper chain guide should be installed and I didn't note how the old one was installed because it was removed from the head at the machine shop.

The CD manual parts diagram shows that the angled brace goes on top and the perpendicular brace goes below. The picture isn't clear enough to show whether the circular retaining pin hole or the enlongated retaining pin hole goes on top. I'm really scraping for words to describe this Does anyone understand what I'm saying and know which way to install the guide? I put it in as the parts diagram shows based on the braces which puts the enlongated hole below.

After replacing the head, I can't get the cam and crank pulley to read TDC at the same time. The tensioner is not in place at this time. With all the slack on the tesionser side I have the cam a little BTDC... at least as far as I can tell because the crank pulley marker isn't exactly a point. I plan to check again after the engine has run and the tensioner is pressurized. Any guidance until then?

Thanks,
Sixto
91 300SE
87 300SDL
83 300SD