"Hi, I have a question. I re
"Hi, I have a question. I recentely replaced my 1972 318 that was raw water cooled with a fresh water cooled one. I am still using the velvet drive/walter vee drive. The setup was running great, about 170-180 deg on the gauge, and you could keep your hands on all risers and manifolds without any discomfort. Last week , the motor wouldnt turn over. Make a long story short, pulled the plugs on the port side , and water was in them. I sprayed up the cylinders with trans fluid, and the motor turned over . ( the boat was only sitting 2 days between starts). My question is, I plan to change manifolds risers and the elbows. The end plate has an appx. 3' water tube in it. All three gaskets have a hole in the top portion, which on the osco site indicates raw water cooled, and shows for fwc, no hole in them. Should I just replace what was in there, or use the ones with no holes. It doesnt make sense how the water would flow through the manifold into the risers with no hole in the gasket. P.S the engine is fwc, but the manifolds are cooled with raw water, hence maybe the holes? I know its a long post, but any info would help, since I'm leaning to going with what was in there."
"Hi, I have a question. I recentely replaced my 1972 318 that was raw water cooled with a fresh water cooled one. I am still using the velvet drive/walter vee drive. The setup was running great, about 170-180 deg on the gauge, and you could keep your hands on all risers and manifolds without any discomfort. Last week , the motor wouldnt turn over. Make a long story short, pulled the plugs on the port side , and water was in them. I sprayed up the cylinders with trans fluid, and the motor turned over . ( the boat was only sitting 2 days between starts). My question is, I plan to change manifolds risers and the elbows. The end plate has an appx. 3' water tube in it. All three gaskets have a hole in the top portion, which on the osco site indicates raw water cooled, and shows for fwc, no hole in them. Should I just replace what was in there, or use the ones with no holes. It doesnt make sense how the water would flow through the manifold into the risers with no hole in the gasket. P.S the engine is fwc, but the manifolds are cooled with raw water, hence maybe the holes? I know its a long post, but any info would help, since I'm leaning to going with what was in there."