dtrader
Newbie
Searched threads here and on internet for coolant flow on long water pump with two hose connections on top - no internal coolant by-pass on block or pump - with no luck. Lots of diagrams for pre 96, seems a simple topic but.... I am unable to verify info on flow direction and could use some help.
I am adding 2 coolant hoses to 1/4" NPT engine block bosses, on L & R sides between cylinders 3-5 and 4-6, (removing knock sensor & 1 plug), to facilitate adding cooler water at this high temp area. I want to be sure on flow before starting project.
My understanding: this water pump is reverse rotation (C.C.W.) making short hose connection on passenger side of pump, (perspective from center line of pump shaft) would be suction side and for the external by-pass hose connection to front intake manifold under thermostat well.
So, long hose connection on driver side of pump, (perspective from center line of pump shaft) would be pressure side. This hose now goes to heater core.
Since this hose connection is 5/8" on heater core and second connection on heater core is 3/4", I belief this 5/8" diameter to be additional evidence of pressure side since a smaller diameter hose is used for pressure and a larger diameter hose is used for lower pressure return, if engineered to typical standards. The 3/4" hose on heater core goes to top of intake manifold on passenger side which I belief should be return form heater core to intake manifold as factory installed.
I have a 3/4" hose connection on radiator, (now plugged), that I want to re-plumb 3/4" hose from heater core to. Then, change hose connection on top intake manifold, (passenger side) to 5/8" to create pressure feed to heater core completing my project.
thanks in advance for any help,
James
I am adding 2 coolant hoses to 1/4" NPT engine block bosses, on L & R sides between cylinders 3-5 and 4-6, (removing knock sensor & 1 plug), to facilitate adding cooler water at this high temp area. I want to be sure on flow before starting project.
My understanding: this water pump is reverse rotation (C.C.W.) making short hose connection on passenger side of pump, (perspective from center line of pump shaft) would be suction side and for the external by-pass hose connection to front intake manifold under thermostat well.
So, long hose connection on driver side of pump, (perspective from center line of pump shaft) would be pressure side. This hose now goes to heater core.
Since this hose connection is 5/8" on heater core and second connection on heater core is 3/4", I belief this 5/8" diameter to be additional evidence of pressure side since a smaller diameter hose is used for pressure and a larger diameter hose is used for lower pressure return, if engineered to typical standards. The 3/4" hose on heater core goes to top of intake manifold on passenger side which I belief should be return form heater core to intake manifold as factory installed.
I have a 3/4" hose connection on radiator, (now plugged), that I want to re-plumb 3/4" hose from heater core to. Then, change hose connection on top intake manifold, (passenger side) to 5/8" to create pressure feed to heater core completing my project.
thanks in advance for any help,
James