For reference I had the m52 in the car(e30) and coolant flowed fine with the same setup. I now have the s52 in its place.
I have the e36 radiator with the built in overflow that feeds the motor through the botom to the back of the timing cover. The pump is one of the stewart pumps(I took it out of the m52 and moved over to this swap). it seems buttery smooth when out and spins free. Nothing leaked.
Now to my issue. I am getting no coolant coming out of the top hose at all. This leads me to believe for some reason the pump isnt circulating coolant as even cold I should have flow. With the water pump out I blew into the upper coolant hose and the hose that would feed the back of timing port like a trumpet and get zero restricions. I also tested 2 thermostats but with no coolant making it to the upper hose that shouldnt matter yet.
Is there something I am missing? I am stumped at this point. I may try another cheapo waterpump just for my sanity.
I have the e36 radiator with the built in overflow that feeds the motor through the botom to the back of the timing cover. The pump is one of the stewart pumps(I took it out of the m52 and moved over to this swap). it seems buttery smooth when out and spins free. Nothing leaked.
Now to my issue. I am getting no coolant coming out of the top hose at all. This leads me to believe for some reason the pump isnt circulating coolant as even cold I should have flow. With the water pump out I blew into the upper coolant hose and the hose that would feed the back of timing port like a trumpet and get zero restricions. I also tested 2 thermostats but with no coolant making it to the upper hose that shouldnt matter yet.
Is there something I am missing? I am stumped at this point. I may try another cheapo waterpump just for my sanity.
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