Volvo V8 380 EVC Catalyst - Winterizing

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Volvo V8 380 EVC Catalyst - Winterizing

Postby Catch22 » Sun Jun 24, 2018 10:29 am

All - Have a 2016 Volvo V8 380 EVC Catalyst motor, which is an enclosed cooling system. With this type of motor, does anyone know what needs to be drained of fresh water when winterizing? Heads, manifolds, intake hoses/impeller, heat exchanger? Appreciate any info that can be provided. (PS - don't worry not winterizing in the middle of the summer, but think I can do it myself this fall. However, don't know much about fully enclosed motors)

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Re: Volvo V8 380 EVC Catalyst - Winterizing

Postby lg260ss » Sun Jun 24, 2018 1:52 pm

All you have to do is drain the heat exchanger and raw water pump. You’re manual gives step by step instructions of how to do this. The 6.0l is fully closed cooled so there is no draining the manifolds.
Mechanically, it is very easy to do. Unfortunately, Regal gives very poor access to the front of the engine which Makes the job much tougher than it should be.
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Re: Volvo V8 380 EVC Catalyst - Winterizing

Postby gofast24 » Mon Jun 25, 2018 10:55 am

interesting that the 6.0 L has fresh water cooled manifolds, are the risers sea water cooled? Fresh water cooling the exhaust manifolds has to have something to do with the catalysts, if so really big heat load on the heat exchanger! Our 4160 has sea water cooled manifolds and risers. Does the OP mean raw/sea water cooled vs. fresh water cooled he indicated needing to be drained for winter?
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Re: Volvo V8 380 EVC Catalyst - Winterizing

Postby Chris_in_Texas » Mon Jun 25, 2018 7:04 pm

No the full exhaust system is closed on this engine, which actually is a big plus. The exhaust system will last just as long as the engine. I think its the only block to be a full closed loop cooled engine including the exhaust system. My cat based engines were raw water cooled on the 5.7L.
Thanks, Chris

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Re: Volvo V8 380 EVC Catalyst - Winterizing

Postby Catch22 » Wed Jun 27, 2018 9:25 am

Thanks for the info!! - Steve
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Re: Volvo V8 380 EVC Catalyst - Winterizing

Postby gofast24 » Wed Jun 27, 2018 11:06 am

Chris_in_Texas wrote:No the full exhaust system is closed on this engine, which actually is a big plus. The exhaust system will last just as long as the engine. I think its the only block to be a full closed loop cooled engine including the exhaust system. My cat based engines were raw water cooled on the 5.7L.

Makes sense about the manifolds and risers being part of the closed cooling system and will not rust/fail as a old style sea water cooled system were. But, has to be a big thermal load on the sea water heat exchanger and cooling system in general. When still working a few years back all of our over 500 kWe gaseous fueled gen set engines had fully jacket water cooled exhaust manifolds, turbo's and mufflers, they were part of a TEP (total energy package) that used the exhaust heat thru a external heat exchanger to provide heat and electricity for larger applications. We had systems that were over 92% efficient using the engine heat and electric output in combination to provide that overall electrical/thermal efficiency. The 8% lost was the engine exhaust heat that couldn't be economically recovered.
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Re: Volvo V8 380 EVC Catalyst - Winterizing

Postby gofast24 » Wed Jun 27, 2018 11:07 am

Chris_in_Texas wrote:No the full exhaust system is closed on this engine, which actually is a big plus. The exhaust system will last just as long as the engine. I think its the only block to be a full closed loop cooled engine including the exhaust system. My cat based engines were raw water cooled on the 5.7L.

Makes sense about the manifolds and risers being part of the closed cooling system and will not rust/fail as a old style sea water cooled system were. But, has to be a big thermal load on the sea water heat exchanger and cooling system in general. When still working a few years back all of our over 500 kWe gaseous fueled gen set engines had fully jacket water cooled exhaust manifolds, turbo's and mufflers, they were part of a TEP (total energy package) that used the exhaust heat thru a external heat exchanger to provide heat and electricity for larger applications. We had systems that were over 92% efficient using the engine heat and electric output in combination to provide that overall electrical/thermal efficiency. The 8% lost was the engine exhaust heat that couldn't be economically recovered.
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