waterinthefuel
Commander
- Joined
- Nov 15, 2003
- Messages
- 2,728
I was helping my father ready his 1978 Merc 70 for the spring. We changed the lower unit oil, spark plugs, charged the batteries, etc. He decided to start it to make sure everything was hunky dory. We started it on muffs and the water pump would barely pump. I adjusted the muffs and it became intermittent at best. It would pump fine for a few seconds, then completely stop for a second, then pump again, then stop. The water coming out of the tattle tale was certainly warm, but not to the point of burning your hand. This was only after idling it for a couple of minutes. It is warm outside, mid 70's for sure, and the water coming from the muffs was room temperature.
The water pump was replaced either last year or the year before, so do you see something as being wrong, or is it because it's on muffs that it's acting up? The engine purrs like an absolute kitten, it should, as my father put 1000 bucks into new electrical parts for it when he inherited it from a relative. We don't want to drag it 30 miles to the lake only to find out the water pump is so-so and we'll have to drag it all the way back.
Aren't muffs not the best way to determine how well a water pump works?
The water pump was replaced either last year or the year before, so do you see something as being wrong, or is it because it's on muffs that it's acting up? The engine purrs like an absolute kitten, it should, as my father put 1000 bucks into new electrical parts for it when he inherited it from a relative. We don't want to drag it 30 miles to the lake only to find out the water pump is so-so and we'll have to drag it all the way back.
Aren't muffs not the best way to determine how well a water pump works?
