Kola16
Petty Officer 2nd Class
- Joined
- Jun 23, 2019
- Messages
- 179
Not my boat, but I am trying to help fix it. The serial number is 14001F-422077. 2003 Suzuki DF140 4-stroke.
The engine is not peeing even with revving the engine and letting it warm up. It is not overheating the block, but we still need water out the telltale. We thought that the system could be clogged with debris or corrosion deposits since the anodes were basically gone from being corroded away. The anodes have now been replaced. The engine and accessible channels were cleaned out as best as could be with compressed air, water, and weed eater string. The impeller was replaced and we verified it is rotating the correct way. We also tried running water up the pickup tube and down through the block at the thermostat housing with the garden hose to see if anything would come out of the telltale. Nothing still.
We can shoot water up through the telltale and out of the "water return union" (item 4 of first pic), so the potential clog is not in the small rubber hoses or fuel and oil coolers. When we take the small hose off the water return union with the engine running, nothing comes out the small stem of the union, or small rubber hose (item 20 of 2nd pic). That does not seem right that no water is flowing through the small rubber hose that is item 20, am I right?
How much water is supposed to flow through the large hose which is after the thermostat (item 1 of the second pic)? Even after the thermostat opened, there still wasn't much coming out, which makes sense, but it is a big hose for such little water.
Also, could a bad water pressure valve (item 3 of second pic) cause no water to come out of the telltale?
We are trying to avoid the cost of a boat mechanic and need suggestions. Does anyone have flow path diagrams of the cooling system? Thanks!
The engine is not peeing even with revving the engine and letting it warm up. It is not overheating the block, but we still need water out the telltale. We thought that the system could be clogged with debris or corrosion deposits since the anodes were basically gone from being corroded away. The anodes have now been replaced. The engine and accessible channels were cleaned out as best as could be with compressed air, water, and weed eater string. The impeller was replaced and we verified it is rotating the correct way. We also tried running water up the pickup tube and down through the block at the thermostat housing with the garden hose to see if anything would come out of the telltale. Nothing still.
We can shoot water up through the telltale and out of the "water return union" (item 4 of first pic), so the potential clog is not in the small rubber hoses or fuel and oil coolers. When we take the small hose off the water return union with the engine running, nothing comes out the small stem of the union, or small rubber hose (item 20 of 2nd pic). That does not seem right that no water is flowing through the small rubber hose that is item 20, am I right?
How much water is supposed to flow through the large hose which is after the thermostat (item 1 of the second pic)? Even after the thermostat opened, there still wasn't much coming out, which makes sense, but it is a big hose for such little water.
Also, could a bad water pressure valve (item 3 of second pic) cause no water to come out of the telltale?
We are trying to avoid the cost of a boat mechanic and need suggestions. Does anyone have flow path diagrams of the cooling system? Thanks!
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