If you can locate the ticking lifter they are very easy to replace, just take off the rocker arms and push the bad one out and put the new one in, be sure the oil flow is not blocked

__________________
Jerry

2004 SL500 Black 55K Miles
2002 s500 Black 90K Miles
1986 300E Gold 233K Miles
1966 Twin Cessna 320D
1989 Jeep Cherokee 233K Miles
1994 Ford Van E150 399K Miles