From: rertman@ix.netcom.com
Date: Sun Dec 07 2003 - 06:59:10 PST
I prefer freeze plug heaters because the coolant is everywhere in the engine
except in the oil pan (I hope!). Therefore, the fuel in the injectors will
stay flowable and the coolant will transfer the heat to just about everyplace
in the engine. Even the oil will remain reasonably flowable because the heat
will migrate to colder places, including the oil pan via the oil pump pickup
in the pan.
If you're in a REALLY cold area, use two freeze plug heaters...and don't
forget the diesel fuel tank. I recall from my days in Maine that many diesel
trucks had tubing that circulated some coolant through a heat exchanger in the
fuel tank. Maybe one of those pad heaters would do well to be attached to the
fuel tank.
Dick
jonathon wrote:
>
> :
> >Has anyone had experience with the "oil pan pad" type heaters? This
> >company offers a 1000 watt unit that is supposed to bring the oil temp
> >from -40 to +60 F in a couple of hours. Their reasoning is that it is
> >better to warm the oil, and let the heat rise, than it is to warm the
> >engine, and allow it to start with frozen oil. It seems to make sense to
> >me that warm oil is much better than frozen oil. Certainly the
> >installation of these heater pads is far simpler than any other method.
> >http://www.engineheaters.com/advantages.htm
> >Do the hot water heaters actually warm the oil?
>
> Yea but it seems to me the bigger problem with starting a cold diesel is
> that you need to warm the head (actually the fuel in the injectors that are
> in the head) for the engine to start. Issues of oil being cold and such
> would seem to be seconday. You may want to run multiple heaters then. But
> then that's just my opinion, your mileage may vary.
>
> je
>
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