HaulinAshe
Well-known member
My "trick" was to lay a small 6" metal ruler (straight edge as we call in machine shops), flat on the head surface, alongside the exhaust cam sprocket. Then using an inspection mirror (dental mirror) and flashlight, I could both illuminate the side of the exhaust cam sprocket and have a close edge reference for the timing mark.
IMO, if you try to use the surface of the head as reference, it's just too damn far away from the mark to be sure what you're seeing.
I'll man-up and confess, it took me roughly three hours to get the timing set correctly after replacing the chain and tensioner, and I've done it a bizillion times on engines outside the frame or ones that are visible from the side. It's a tough job to get it right, but that's no excuse for doing it wrong.
IMO, if you try to use the surface of the head as reference, it's just too damn far away from the mark to be sure what you're seeing.
I'll man-up and confess, it took me roughly three hours to get the timing set correctly after replacing the chain and tensioner, and I've done it a bizillion times on engines outside the frame or ones that are visible from the side. It's a tough job to get it right, but that's no excuse for doing it wrong.
Last edited by a moderator: