I adjusted the timing (by ear - cringe). When I advanced the timing quite a bit (ip moved up about 1/4 inch at the adjusting screw), the nailing got much quieter.

Now I'm thinking it is just the usual cam followers that are making a noise.

Have a listen to the video, please and tell me if I'm wasting my time putting in new cam followers. Pleeeease!

http://www.pauldrayton.com/uploadfiles/merc/nailing/nailing.html

__________________
1983 240D Silver/Blue "Sadie", unknown miles. 100k miles on WVO single tank, converted to 2 tank about 10k miles ago, FPHE, Injector Heaters, Aux Fuel pump. Alcohol/Water injection. Frantz oil bypass filter
1992 300D 2.5 Turbo Green/Tan "Jade" 267K miles Stock.
1992 300D 2.5 tan/tan "Rocky" on 2 tank WVO. Pressure actuated Turbo "rat's nest" surgery completed. 197k miles