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post #1 of Old 07-12-2011 Thread Starter
Tim R.
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Yanmar 4JH-2E using coolant

Here is what I know:

- Engine runs very well with ample power at all rpms
- I have to top off the overflow tank after every 4 hours of motoring
- No overheating(yet)
- No coolant in oil(crack in block)
- No pressure in heat exchanger when running the engine with the cap removed(bad head gasket)
- No apparent leaks under the engine

What is left are the following:
- Hot water heater leak
- Heat Exchanger leak
- Exhaust riser leak
- hidden leak into bilge
- Something I am missing?

Any of these should have coolant in the bilge, hot water system or the exhaust. Does anyone know of a way to test for coolant(trace amounts) in water?

Tim R.
Our Carina is for sale
1997 Caliber 40LRC

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Last edited by Tim R.; 07-12-2011 at 04:16 PM.
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