I tore down the top end of my engine but I can't get the cams back on. Once I set the timing and pull all the slack in the timing chain to the intake side of the engine and I start tightening the brackets that hold the cams down, the chain is pulled off the cam towards the exhaust side of the engine (pic below). I think it might be caused by the front/exhaust cam chain guide being installed incorrectly. I'm using a Haynes service manual and
this guide, but they both just say to install it and don't say how, so I just dropped it in the engine in front of the cam chain. I did find a parts diagram, so I know I didn't put it in backwards or upside-down, though.