Hey folks,
A friend has a '83 300D. It has developed a water leak visible when looking under the front bumper. It's leaking 3 or 4 drops a second off the front-bottom of the motor. Crawling under the front with a flashlight reveals that the water first appears on the block from behind the lower rear harmonic balancer/pulley assembly. I simply can't tell where the water originates above that point.
The water pump hole is dry and shows no evidence of seepage that I can tell. All visible hoses appear water tight. About an inch or so directly beneath the water pump it looks like there is a bolt hole in the front of the block. This hole does not have a bolt in it. An inch or so below the "bolt hole" there is a small wet spot but I can't determine the origin.
Anybody encountered anything like this? We are going to remove the radiator and start unbolting things tomorrow. Anything in particular to watch for? Sure would appreciate any insight.