I have a Westerbeke
4107 with a Walters V-Drive. I pulled out the v-drive to replace it. Prior to doing so, my engine exhaust
system ran normally.
Here is what I know about the raw water
side of my system: after water
goes through the raw water
intake, it goes through a strainer, then through the v-drive, then to the water
pump, then to an oiler cooler, heat exchanger
and then finally through a transmission oil
cooler before it goes through the exhaust
manifold. After installing the new v-drive, I have had no exhaust water. The intake is not clogged, the strainer is not clogged, water moves through the new v-drive with ease. I checked the impeller, which appeared fine, but replaced anyways. The pump appears to be spinning the new impeller just fine. Any ideas? My raw water strainer bowl is filled but not draining when the engine
is running. Seacock is open.
When I replaced the v-drive, all the water in the exhaust system emptied into the bilge
, as the connections to the v-drive are the lowest point in the system...could all the air in the system be preventing the pump from priming?