Centaur1975
Recruit
- Joined
- Jun 18, 2017
- Messages
- 2
Hi all...new to the forum. If I'm not in the right spot. Please let me know.
I have a 2012 mercruiser 3.0 alpha one gen 2 outdrive. Engine serial # 2A039852 sterndrive serial #2A058060.
Was out in the lake...running WOT, high temp alarm came on. Backed off the throttle, the temp came down rapidly. Went the rest of the day without issue. However, due to the high temp alarm I figured an impeller and t stat change was due. (For the first time) changed the impeller and put everything back together. Started the boat on the muffs and the high temp alarm came on again. After some looking around I figured out that the intake tube (plastic tube) didn't go into place the first time. Took the lower unit off again and made sure the tube was in the right place. Also changed the thermostat. (160 deg)
Started the boat again and now I have water coming out the exhaust ports as well as a little coming out the center of the prop. All seems well. Riser is cool to touch. Temp gauge a little high but stayed steady at 165/ 170.
Now for the questions or things I don't understand. Just trying to avoid a possible issue on the water.
1. At the thermostat housing there are 3 hoses. 2 smaller, one larger. The two small are cool to touch, the larger one gets quite warm. Is this normal? Again, risers cool to touch and temp seems steady...but I never noticed the hose temperatures before. Not sure if that larger hose should be "hot" or not?
2. With the new impeller in place. It's definitely pushing more water...where should water be coming out of the sterndrive? Most of the water is coming out the exhaust ports, a little out the center of the prop. But also some out of a small hole on the side of the drive. And a little out of the bottom of the prop. housing. Just wanted to confirm that everything seems normal.
More concerned with the hose feeling hot near the thermostat.
Any input would be helpful. Thank you
I have a 2012 mercruiser 3.0 alpha one gen 2 outdrive. Engine serial # 2A039852 sterndrive serial #2A058060.
Was out in the lake...running WOT, high temp alarm came on. Backed off the throttle, the temp came down rapidly. Went the rest of the day without issue. However, due to the high temp alarm I figured an impeller and t stat change was due. (For the first time) changed the impeller and put everything back together. Started the boat on the muffs and the high temp alarm came on again. After some looking around I figured out that the intake tube (plastic tube) didn't go into place the first time. Took the lower unit off again and made sure the tube was in the right place. Also changed the thermostat. (160 deg)
Started the boat again and now I have water coming out the exhaust ports as well as a little coming out the center of the prop. All seems well. Riser is cool to touch. Temp gauge a little high but stayed steady at 165/ 170.
Now for the questions or things I don't understand. Just trying to avoid a possible issue on the water.
1. At the thermostat housing there are 3 hoses. 2 smaller, one larger. The two small are cool to touch, the larger one gets quite warm. Is this normal? Again, risers cool to touch and temp seems steady...but I never noticed the hose temperatures before. Not sure if that larger hose should be "hot" or not?
2. With the new impeller in place. It's definitely pushing more water...where should water be coming out of the sterndrive? Most of the water is coming out the exhaust ports, a little out the center of the prop. But also some out of a small hole on the side of the drive. And a little out of the bottom of the prop. housing. Just wanted to confirm that everything seems normal.
More concerned with the hose feeling hot near the thermostat.
Any input would be helpful. Thank you
