Volvo 2002 TDC - valve adjustment
Good question Dirk. The service manual describes how to do it. It says to to rotate the engine (I did this w/a socket wrench attached to the bolt on crank's pulley) until the valves just start "rocking." At that point, rotate the engine another full rev and you'll be at TDC. I marked the pulley, but to be honest, the valve movement didnt' really coincide w/the pulley 100%. I felt it out by watching the valves and rougly figuring the TDC position. It's pretty clear when they are both closed, and that's when you take the measurement. Wish I had a better answer, but the manual is not the best in the world, and you really need to budget a nice chunk of time to just sit and observe the engine as you pull it though. By the way - don't forget to put the decompression lever back to its running position when you adjust the valves. It's easy to forget that it's open and when it is, you won't get a good measurement, or won't be able to adjust some of the valves at all. After adjustment, I found that the tiny, telltale fuel slick I'd see on the water was gone, so I believe the valves are fully closing now and I am getting better combustion. Best of luck - feel free to post back w/any other questions . Rob
