Hi,
Does anyone can give me more detailed specifications about raw water pump for this engine (rated at 195HP/3000RPM). I found out on the internet, that original raw water pump for V-504 was Jabsco 11600 (impeller pump). I am not sure, but I found some info that mentioned this pump flow rate was 80 LPM (liters per minute), but I am not sure. Anyway, even if that is correct, does anyone know at what RPM is that specification given? At what engine RPM should be max flow rate defined? I found on some older engine datasheets (V-504) following statement:
"Minimum Raw Water flow with Water tempratures to 90F (32C) ......32US GPM (2.0liters/second)"
Now, this line is a bit confusing to me, since this temperature is very low and I do not know on which exactly temperature is this line referring. Also, is that flow rate supposed at maximum RPM, or at highest torque RPM, or...?
Anyway, I have a Gilkes raw water pump (circular pump), which in my personal opinion is better choice for raw water pump. Thing is, that I do not have a pulley and I do not know the flow rate of this pump either. So I plan to test this Gilkes pump I have and find out the flow rates at given RPM. Then I need original engine pump data, so I can design the correct pulley.
Yes, this is a bit complicated, but since my engine is new, never used, so as this Gilkes pump, it does pay off to me. For the pump, I contacted the Gilkes, but no answer yet, probably due to old type numbers, but if they cannot help, I will test it by myself for needed data (flow rates at specific RPMs and make a curve).
I would appreciate very much if someone can help me here with these information.
Best regards,
Nikola
Does anyone can give me more detailed specifications about raw water pump for this engine (rated at 195HP/3000RPM). I found out on the internet, that original raw water pump for V-504 was Jabsco 11600 (impeller pump). I am not sure, but I found some info that mentioned this pump flow rate was 80 LPM (liters per minute), but I am not sure. Anyway, even if that is correct, does anyone know at what RPM is that specification given? At what engine RPM should be max flow rate defined? I found on some older engine datasheets (V-504) following statement:
"Minimum Raw Water flow with Water tempratures to 90F (32C) ......32US GPM (2.0liters/second)"
Now, this line is a bit confusing to me, since this temperature is very low and I do not know on which exactly temperature is this line referring. Also, is that flow rate supposed at maximum RPM, or at highest torque RPM, or...?
Anyway, I have a Gilkes raw water pump (circular pump), which in my personal opinion is better choice for raw water pump. Thing is, that I do not have a pulley and I do not know the flow rate of this pump either. So I plan to test this Gilkes pump I have and find out the flow rates at given RPM. Then I need original engine pump data, so I can design the correct pulley.
Yes, this is a bit complicated, but since my engine is new, never used, so as this Gilkes pump, it does pay off to me. For the pump, I contacted the Gilkes, but no answer yet, probably due to old type numbers, but if they cannot help, I will test it by myself for needed data (flow rates at specific RPMs and make a curve).
I would appreciate very much if someone can help me here with these information.
Best regards,
Nikola