SeaCruiser
New Member
- Dec 26, 2018
- 13
- Boat Info
- Sea Ray 400 Bridge 2001
- Engines
- 6CTA8.3-M3 (C450 Diamond)
And congratulations on the cleanliness of the engines.
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No real problem. The coolers were 18 years old and in salt that means end of life soon. So rather than spring for two new ones at $200 each, I removed them. According to sbmar and some fellow boaters that have removed them, they aren't needed unless you boat in the desert, much like the air grid heaters aren't needed where I boat as well (I removed them several years ago).Bill, im curious on the fuel cooler removal. I havent heard of this, and would like to understsnd the pros / cons of this modification. Is this to solve an existing problem?
my3sons, I am working on the setup. There is one thing I dont fully understand, the overheat switch in the exhaust manifold, is this 200DegF? It seems too low to me, there is coolant flowing in there?
I just re-read your message, OMG 8000 miles! I did not grasp that the first time I read it! What are your cruising speeds and RPMs?
I had a leaking fuel cooler replaced last fall. First sign I noticed was every time I would start the engine there would be sheen of diesel fuel on top of the water. Second sign was having to drain water from the Racor more often then usual.Generally curious, how do the fuel coolers typically fail? Leak fuel? Leek raw water on engine? Leak water into fuel system? Are there any early detection signs of a soon to fail cooler?
I replaced the trans cooler after inspecting, and finding a green solder joint....i felt I dodged a bullet. A dock mate, with mechanical "B's" was not so lucky, and ended up flushing the trannies to remove salt water.
Do you have a link to that? The coolant is pre charged with the additive that coats the metal parts to protect them from cavitation damage. But the coolant still needs to be tested periodically to see how much (if any) additive needs to be added to maintain that protection. New filters containing the additive are a user friendly way to provide that additive.Thanks Blueone....yes. I got the concentrate. I'm going to mix with distilled water. Reading on the QuickServe site today, I am led to believe that since 2013, coolant filters are no longer required. Do you agree with that?
Thanks for helping me confirm the coolant.
Jaybeaux
Appreciate that. This is where I get confused..... Am I over thinking this?