decgaryboat
Recruit
- Joined
- Jul 8, 2025
- Messages
- 2
5th time replacing water pump on my mercruiser 120 alpha. After reattaching L/U halves, considerable water now leaks from the hole in front of the FRONT bolt connecting U/L units.water also streams out from the weep hole at bottom of unit...The bolt with a washer screwed in with a Phillips screw.
The water pump does pump water to engine, and it does not overheat....plus boat shifts fine F, R,N. But, I never remember such a major leak. The exhaust bellows IS badly torn, but I thought that it had nothing to do with cooling system...only with venting/noise reduction. Last point: This was the FIRST startup of the year...so, consider that as well.
Thought id get some ideas B4 I drop the lower unit again to investigate.
The water pump does pump water to engine, and it does not overheat....plus boat shifts fine F, R,N. But, I never remember such a major leak. The exhaust bellows IS badly torn, but I thought that it had nothing to do with cooling system...only with venting/noise reduction. Last point: This was the FIRST startup of the year...so, consider that as well.
Thought id get some ideas B4 I drop the lower unit again to investigate.