Air lock

WarnerT

Recruit
Joined
Mar 26, 2021
Messages
2
Good morning all.
I changed the transmission cooler on my port engine. No cooling issues prior to.

After installation, no water is flowing through system.
I checked impeller and it did not burn or show any signs of damage. As expected, it was still wet when removed.
Checked water flow from inlet. Fine. Tried running the boat twice now.
Reved engine up a bit to try and force the air out. Engine heats up quick so I have to shut it down soon after starting

I tried back flushing the system with a garden hose connected to the cooler. I heard what sounded like a few air bubbles but still no water flow when I started the engine.
Is there a way to bleed the raw water system?
 

Horigan

Senior Chief Petty Officer
Joined
Jun 12, 2016
Messages
705
How are you providing water to the raw water pump? Via muffs or drive in a large bucket. If it's a bucket then it's not able to prime since the water level is below the raw water pump.
 

WarnerT

Recruit
Joined
Mar 26, 2021
Messages
2
Hi

I discovered the problem. I missed one of the cooler’s plugs. Removed the plug and all is fine

Thanks
 
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