Hello all. I tooked my 87 420 SEL to 2 independent MB shops and they both said that I have a bad camshaft on the right side. But they both did a quick look over and came up with the diagnosis. This is the diagnosis procedure they used. While my car was running they took off the oil cap and shined a light down into the valve cover looking towards the back of the valve train I guess checking to see how the oil was flowing onto the camshaft.
Over the weekend, I had to change my spark plugs, spark plug wires, distributor cap, and rotor. After completing this task, I was inspecting and checking for any vacuum leaks while my car was running. When I got down to check under the car, I noticed that the tapping/clacking sound was louder on the passenger side which is where the camshaft was diagnosed as being bad. I also noticed that the sound appeared to be really loud where the muffler pipe connects to the engine.
Questions?
1. Is it possible for a exhaust leak to make a tapping or clicking sound similar to an engine noise?
2. How can you tell for sure if you have a bad camshaft?
3. If it is a bad camshaft. Would the tapping/clacking sound get louder as I accelerate and the car still have lots of power to spare?
I'm posting this because I want to examine all possibilities before I lay down a few thousands $$$$ for the repair work. I'm examining all possibilities here so your thoughts and knowledgeable replies will be greatly appreciated!!!
Over the weekend, I had to change my spark plugs, spark plug wires, distributor cap, and rotor. After completing this task, I was inspecting and checking for any vacuum leaks while my car was running. When I got down to check under the car, I noticed that the tapping/clacking sound was louder on the passenger side which is where the camshaft was diagnosed as being bad. I also noticed that the sound appeared to be really loud where the muffler pipe connects to the engine.
Questions?
1. Is it possible for a exhaust leak to make a tapping or clicking sound similar to an engine noise?
2. How can you tell for sure if you have a bad camshaft?
3. If it is a bad camshaft. Would the tapping/clacking sound get louder as I accelerate and the car still have lots of power to spare?
I'm posting this because I want to examine all possibilities before I lay down a few thousands $$$$ for the repair work. I'm examining all possibilities here so your thoughts and knowledgeable replies will be greatly appreciated!!!