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So I've been chasing a problem for a while on the M916.
Back when I changed the thermostat, the water bypass tube that connects the water pump to the thermostat housing (#11) started leaking. It is kind of an odd setup - there is an o-ring (#16) that seals the tube (#15) to the water pump and a sort of half clamp (#21) that holds it in place. As soon as I turn on the engine and pressure builds, coolant starts leaking through the connection. A new o-ring did not fix the problem, I may try to apply RTV to the o-ring and surrounding area to see if that will seal.
It is also very, very difficult to get the hose that connects the tube and thermostat housing (#11) in place with the o-ring on the tube. Several times now, I've cut up the hose and o-ring while trying to get everything in place.
Anybody else who's worked on the NTC-400 run into this or have any tips?
Back when I changed the thermostat, the water bypass tube that connects the water pump to the thermostat housing (#11) started leaking. It is kind of an odd setup - there is an o-ring (#16) that seals the tube (#15) to the water pump and a sort of half clamp (#21) that holds it in place. As soon as I turn on the engine and pressure builds, coolant starts leaking through the connection. A new o-ring did not fix the problem, I may try to apply RTV to the o-ring and surrounding area to see if that will seal.
It is also very, very difficult to get the hose that connects the tube and thermostat housing (#11) in place with the o-ring on the tube. Several times now, I've cut up the hose and o-ring while trying to get everything in place.
Anybody else who's worked on the NTC-400 run into this or have any tips?
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