AZ_Brad_320
New Member
- Oct 5, 2022
- 8
- Boat Info
- 2007 320DA 350 V's
- Engines
- 350 MAG V-Drives
I've read every thread on this subject and have gone down almost every road I can think of. I would APPRECIATE any advice as I'm 25k in and no boat to use. Here's the story.. 2007 320 Dancer with 350 V drives closed cooling system....had a sea water (exhaust) issue where port not pumping as much water as starboard day I bought it.
Here's what I've had done by Hales' Marine here in Phoenix:
What the hell could this be? Has anyone ever heard of anything like this?
Here's what I've had done by Hales' Marine here in Phoenix:
- Replaced seacock..thought it might have been stuck
- Replaced exhaust manifolds and risers, preventative... figure she had seen salt water before and it was good money spent.
- Replaced sea water pump and pulleys
- New hoses from strainer to pump etc.
- At mechanics suggestion replaced tranny coolers....back in water same problem.
- At mechanics suggestion replaced heat exchanger...back in water same problem
- They have put 2 different water pumps on it (mercruiser brass) and ...same problem
What the hell could this be? Has anyone ever heard of anything like this?
- It presents itself as a water pumping issue (not enough volume of water being pumped through manifold), port running 30 degrees hotter than starboard.
- So water pump seems like the best place to start but after 2 new ones its same old same old.
- Blockage could be a thing if we hadn't replaced everything on the cooling system.
- I've asked about a collapsed hose and they swear we replace all the hoses.
- Is there anyway they messed something up with the manifold/riser job? A gasket slipped off in there or something.
- Thought about air leakage but they swear they did the clear hose test?