4P90HUB timing marks
I'm changing the pistons rings on a MTD 4P90HUB engine off a Troy-Bilt riding mower. After I got the cam shaft out I noticed that the timing mark on the crank shaft had worn off (I know this isn't a good sign). There should be two timing marks, one on the upper gear and one on the lower gear. The mark on the upper gear is clearly visible. I believe the mark on the lower gear should line up with the upper gear. If you zoom in enough on the picture you can almost make out a mark on the lower gear that lines up with the upper. Can anyone confirm that the two marks line up?