Ok, this has been a chronic issue for the last two season that I can't seem to correct.. engine overheats at low rpms <1500.. above that it's fine.. so far I've replaced the impellor (twice), replaced the v-belt, inpsected the (on the motor) water pump and done a couple tests. test 1) disconected the water hose from the pump (on the engine) and inserted a garden hose.. seems to flow fine from water pump through to the exhaust. Test 2) similar test by inserting a garden hose to the intake line on the outside of the boat with the outdrive off.. flow seemed fine through whole system
Things I'm suspicious of.. maybe they point to somthing.
1) the water coming out of the prop is barely warm, but the water at the "on the engine" pump is hot
2) while running, the larger hose at the pump on the engine doesn't seem to have much pressure in it.. basically I can squeeze it easliy and it doesn't feel like it's full of water, but should it? It's hot, but doesn't feel full.
Even though this pump looked fine I'm thinking about swapping it out since I'm out of ideas. Any thoughts? Any other ideas?
Also, is there an auto equivalent for this water pump?
Things I'm suspicious of.. maybe they point to somthing.
1) the water coming out of the prop is barely warm, but the water at the "on the engine" pump is hot
2) while running, the larger hose at the pump on the engine doesn't seem to have much pressure in it.. basically I can squeeze it easliy and it doesn't feel like it's full of water, but should it? It's hot, but doesn't feel full.
Even though this pump looked fine I'm thinking about swapping it out since I'm out of ideas. Any thoughts? Any other ideas?
Also, is there an auto equivalent for this water pump?
