crash1davis
New member
"Well, first off, I read most
"Well, first off, I read most everything I could on this forum relating to my problem. Seems common but I have yet to fix my problem. I have a 2000 351 Silverton with 454 Crusaders. I had it stored outside this year for the first time and first trip out I had overheating and steam from my starboard exhaust.
What I've done so far:
Closed seacock and unscrewed bleeder to check water intake. Good pressure coming in. No obstructions.
changed impeller. took off pump and the old impeller was in pretty bad shape. bearings and gasket seemed fine.
removed hose from U-Cooler and cleaned rubber parts out from old impeller.
removed hose from U-Cooler to thermostat to see if there was any buildup from zinc pencil. no obstructions.
Removed zinc pencil from bottom of U-Cooler. in good shape and water drained fine.
Pulled all eight plugs and did compression test on each chamber. No leaking and all registered around 160. Broke 3 plugs and replaced with new ones.
I was low on oil but topped off several days ago. No oil loss and it looks fairly clean.
After all this, I'm still getting steam from my exhaust at higher RPM's. Water flow is still impaired as I'm not getting as much from the starboard as the port side. My thermostat registers about 140 now so the overheating problem has been resolved. No steam at idle but still steaming at 3000 RPM's.
From what I've gathered from other posts here is what I need to check:
There could be something still wrong with my U-Cooler (oil cooler) but I'm not sure what.
My belt on my pump could be too loose. It doesn't appear to be maybe could be at higher RPM's.
Could be an air leak going to the raw water pump. Doesn't appear to be but how do I check?
Some posts said that I could have an air pocket somewhere in my cooling system. How can remove the air pocket.
What am i missing?"
"Well, first off, I read most everything I could on this forum relating to my problem. Seems common but I have yet to fix my problem. I have a 2000 351 Silverton with 454 Crusaders. I had it stored outside this year for the first time and first trip out I had overheating and steam from my starboard exhaust.
What I've done so far:
Closed seacock and unscrewed bleeder to check water intake. Good pressure coming in. No obstructions.
changed impeller. took off pump and the old impeller was in pretty bad shape. bearings and gasket seemed fine.
removed hose from U-Cooler and cleaned rubber parts out from old impeller.
removed hose from U-Cooler to thermostat to see if there was any buildup from zinc pencil. no obstructions.
Removed zinc pencil from bottom of U-Cooler. in good shape and water drained fine.
Pulled all eight plugs and did compression test on each chamber. No leaking and all registered around 160. Broke 3 plugs and replaced with new ones.
I was low on oil but topped off several days ago. No oil loss and it looks fairly clean.
After all this, I'm still getting steam from my exhaust at higher RPM's. Water flow is still impaired as I'm not getting as much from the starboard as the port side. My thermostat registers about 140 now so the overheating problem has been resolved. No steam at idle but still steaming at 3000 RPM's.
From what I've gathered from other posts here is what I need to check:
There could be something still wrong with my U-Cooler (oil cooler) but I'm not sure what.
My belt on my pump could be too loose. It doesn't appear to be maybe could be at higher RPM's.
Could be an air leak going to the raw water pump. Doesn't appear to be but how do I check?
Some posts said that I could have an air pocket somewhere in my cooling system. How can remove the air pocket.
What am i missing?"