Join Date: Apr 2002
Location: Long Island NY
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What is a bypass-type circuit (coolant)?
I have been diagnosing an overheating problem on my Universal M4-30, and, in the process have been studying Peter Compton's Troubleshooting Marine Diesels. In his troubleshooting chart he mentions a bypass-type circuit for the FWC, but never explains it. I would like to understand how it differs from a non-bypass circuit, how I can recognize it if it exists on my engine, and whether this dictates a different type of thermostat.
I have googled without success, and even searched the other book in my not-so-extensive library on diesel engines.
Can anyone enlighten me?
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