Thanks for the reply Larry.

I do have a manual and I did not see a locking tool for the timer.

There is a special tool for removing the chain tensioner, it looks like a socket, maybe splined???

Besides the cam lock, there is a serrated tool for turning the pump until the cam lug lines up for the locking tool. It attaches to the IP input shaft and appears to be designed for hand turning.

One statement in the manual has me confused, (What??, only one?) well, many statements. Where the screw plug, for the locking tool is to be removed, it states: "Remove screw plug and turn removed injection pump with serrated wrench until lug is visible in the governor housing hole, push in the locking bolt until it is felt to engage". I would have thought this would be done BEFORE pump removal, otherwise, I don't understand the purpose.

BTW, there is a special tool listed as "assembly sleeve" for engines effective 09/89. I am guessing, but it appears that it would install where the pump was and it says it make turning the engine easier.

Harry
86 300 SDL