FirstOutboard
Cadet
- Joined
- May 24, 2012
- Messages
- 7
Hi there,
I just replaced my impeller on my 1972 Mercury 50hp (500, Thunderbolt ignition). And now I do not get any water coming out of the phole. I have:
Starting from the lower housing - worked my way up -
I can no longer fathom what is going on. Two thoughts I had - and if anyone could validate these I'd appreciate it. :
1. I know for sure that I incidentally spun the prop counterclockwise when replacing the water pump. Could this really screw up the gear in the lower housing? And therefore the pump is running backwards or something? And if so - what do I need to do to resolve it?
2. I need to place more pressure on the water discharge pipe - add a washer to where it meets the water pump housing, in order to 'push' the pipe further and ensure a very tight fit.
3. Should water go thru the phole when the boat motor is in reverse?
I have logically thought of what I could, have reviewed my service manual to no avail.
I am in dire help, please!
Thank you,
Waterbug - my first outboard by the way.
I just replaced my impeller on my 1972 Mercury 50hp (500, Thunderbolt ignition). And now I do not get any water coming out of the phole. I have:
Starting from the lower housing - worked my way up -
- Ensured there is no blockage of water to the water pump
- Ensured that the waterpump gaskets are good, clean seal
- Ensured that the water can go up and thru the water discharge pipe (I ran a hose thru it - it comes out the phole)
- Ensured that it is clear thru the engine block - able to run water thru it using a hose
- Ensured that the phole is unobstructed
I can no longer fathom what is going on. Two thoughts I had - and if anyone could validate these I'd appreciate it. :
1. I know for sure that I incidentally spun the prop counterclockwise when replacing the water pump. Could this really screw up the gear in the lower housing? And therefore the pump is running backwards or something? And if so - what do I need to do to resolve it?
2. I need to place more pressure on the water discharge pipe - add a washer to where it meets the water pump housing, in order to 'push' the pipe further and ensure a very tight fit.
3. Should water go thru the phole when the boat motor is in reverse?
I have logically thought of what I could, have reviewed my service manual to no avail.
I am in dire help, please!
Thank you,
Waterbug - my first outboard by the way.