Hi all......again,
After running this problem last week and receiving some good advice, I find myself in the same boat....still. The leak is now a bit worse and enough to trip the bilge pump. It is still ONLY raw water and I still cannot determine where this leak is coming from...only while the engine is running. I'm suspecting that maybe there's a crack in the back of the heat exchanger where it meets against the back of the engine?? If there was a crack in the exhaust manifold, I would assume the antifreeze would also be leaking, which it is not. So, I guess my next step is to pull the x-changer and examine. Has anyone had this kind of problem?
Hi all,
Just discovered a new engine cooling problem that really has me scratching my head.
I have a 97 MKIII, with a 25XPA.
Being one of those almost nonexistent owners with a dry bilge; I noticed about 1/2” of raw water in my bilge after running the engine for about an hour. The engine runs at a perfect 160 degrees consistently.
My first thought was the stuffing box, which I found to be set perfectly. Next, I noticed the muffler had hairline cracks around the intake and discharge tubes and has a very slight leak. I marine texted them and stopped that leak. I have a new muffler on order. But, this did not stop the leak I was searching for. I checked ALL of the raw water hoses…no leaks or even stray moisture. The same for the heat exchanger. I did notice a 5 second drip from under the oil pan while running but, for the life of me, cannot find its source! My raw water pump is new and checks out. My raw water intake thru-hull checks out. The raw water filter checks out as do all of the hoses in. Has anyone had this problem?
Please help, I’m pulling out whatever hair I have left.
Thanks to all and Happy Sailing,
Ralph
After running this problem last week and receiving some good advice, I find myself in the same boat....still. The leak is now a bit worse and enough to trip the bilge pump. It is still ONLY raw water and I still cannot determine where this leak is coming from...only while the engine is running. I'm suspecting that maybe there's a crack in the back of the heat exchanger where it meets against the back of the engine?? If there was a crack in the exhaust manifold, I would assume the antifreeze would also be leaking, which it is not. So, I guess my next step is to pull the x-changer and examine. Has anyone had this kind of problem?
Hi all,
Just discovered a new engine cooling problem that really has me scratching my head.
I have a 97 MKIII, with a 25XPA.
Being one of those almost nonexistent owners with a dry bilge; I noticed about 1/2” of raw water in my bilge after running the engine for about an hour. The engine runs at a perfect 160 degrees consistently.
My first thought was the stuffing box, which I found to be set perfectly. Next, I noticed the muffler had hairline cracks around the intake and discharge tubes and has a very slight leak. I marine texted them and stopped that leak. I have a new muffler on order. But, this did not stop the leak I was searching for. I checked ALL of the raw water hoses…no leaks or even stray moisture. The same for the heat exchanger. I did notice a 5 second drip from under the oil pan while running but, for the life of me, cannot find its source! My raw water pump is new and checks out. My raw water intake thru-hull checks out. The raw water filter checks out as do all of the hoses in. Has anyone had this problem?
Please help, I’m pulling out whatever hair I have left.
Thanks to all and Happy Sailing,
Ralph
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