I have some noisy lifters and am getting ready to change and shim them but during inspection I noticed that if I give it throttle, the engine rocks and it gives off a ticking sound that doesn’t sound exactly like a ticking lifter. When I drive I hear the sound too, only under load. If I gas it, it ticks, when I back off, it stops. What could cause this? Is there anything that could rub? It sounds like it’s coming from under the engine. I changed to summer oil and the noise started. This has got to be a tough one without being able to examine the car.

__________________
Steve
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si