Todd, I have the M103 manual which references the 300, 260, and the 190 2.6 engine. If your 2.3 tensioner is the same, then the inner "pressure pin" looks like a pencil; it has a point on one end which contacts the chain guide, and a small circlip on the other end. The circlip clicks along a series of sloped grooves in the outer housing, but cannot click backwards. So, installing the housing, then pushing the pin in through the 'clicks" is the way to install it. The spring and cap force the pin in as they are installed (and they are really tough to align and screw in, lots of spring pressure). So, really no way to do it wrong. If your 2.3 is different, then forget all of the above!

DG