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Old 26-11-2014, 12:12   #16
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Re: Do you run your engines?

Altima, what's that, is that a car?
If it's a car, do you think they expect it to be driven regularly? I'm talking relatively long term storage, entirely different thing. Yes, if it's cold and your going to drive your car tomorrow, plug in the block heater.
But if your not going to run an engine for weeks, possibly months, do not keep the block heater plugged in, it can cause condensation. As a licensed, professional mechanic, I've seen it, I'm not lieing.
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Old 26-11-2014, 12:16   #17
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Re: Do you run your engines?

Ranger,
No offense taken, I know enough about "Yamaha's" to basically avoid them, especially the racks.
Do you have oil seps on yours?
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Old 26-11-2014, 12:32   #18
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Re: Do you run your engines?

Quote:
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Do you have oil seps on yours?

I have Walker AIRSEPs; that what you mean?

-Chris
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Old 26-11-2014, 12:48   #19
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Re: Do you run your engines?

GG, do you have the manuals for your Detroits?

I have the manuals for my Detroit 53 series, and they are explicit about winter procedures. I am Sure the 71's are the same.

Take a look, we bought manuals and found them expensive but worth the effort.
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Old 26-11-2014, 13:05   #20
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Re: Do you run your engines?

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I have Walker AIRSEPs; that what you mean?

-Chris
Yes that is exactly what I mean, separate the oil from the air in the crankcase
blow by, keeps things cleaner.
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Old 26-11-2014, 15:29   #21
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Do you run your engines?

Quote:
Originally Posted by a64pilot View Post
But if your not going to run an engine for weeks, possibly months, do not keep the block heater plugged in, it can cause condensation. As a licensed, professional mechanic, I've seen it, I'm not lieing.

I would like to know how an item heated above the dew point and maintained there can ever accumulate condensation. I know of lots of standby generators that are maintained with block and winding heaters!!



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Old 26-11-2014, 15:35   #22
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Re: Do you run your engines?

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Originally Posted by a64pilot View Post
Altima, what's that, is that a car?
If it's a car, do you think they expect it to be driven regularly? I'm talking relatively long term storage, entirely different thing. Yes, if it's cold and your going to drive your car tomorrow, plug in the block heater.
But if your not going to run an engine for weeks, possibly months, do not keep the block heater plugged in, it can cause condensation. As a licensed, professional mechanic, I've seen it, I'm not lieing.

Ok, I certainly believe you. They are installing my Webasto right now and there will be a heat unit mounted to the wall of each of my engine rooms . As soon as it's done in a couple of weeks I can discontinue the block heaters.


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Old 26-11-2014, 15:52   #23
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Re: Do you run your engines?

Run your engines in gear at least twice a month, make sure they warm up some. If nothing else it will keep your shafts from corroding inside the cutlass bearing. This can happen in one season if your shafts are stainless. I assume they are not cheap on a powerboat of any size.... You can run tied to the dock on many boats.
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Old 26-11-2014, 17:38   #24
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Re: Do you run your engines?

Fwiw I've never been in a marina that had docks that would withstand running big Detroits under enough load to make it worthwhile.


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Old 04-04-2015, 20:49   #25
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Re: Do you run your engines?

How did you make out this winter? Any updates?
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