Engine oil Thermostat

Engine, Transmission and related drivetrain.
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Byron510
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Re: Engine oil Thermostat

Post by Byron510 »

Norm, if 215 is what you’re seeing, it sounds like you pretty much there, maybe a tiny bit cool.
From what we’ve all read, the oil temp needs to get over 212 degrees to properly remove water vapour that is part of the combustion process. The ‘rule of thumb’ is to have oil in the 230-260 range. It’s been mentioned in a number of articles I’ve read over the years that for every pound of fuel burnt, it creates a pound of water. Now nearly all of that goes out the exhaust, that’s a given. But some does stay in the engine and this causes problems when this moisture mixes with the sulphur in the oil. It’s hard on bearings.
Another issue I feel has contributed to wear on my motor is that oil not at it’s designed viscosity does cause additional drag and possibly not the protection it could. In my case, having oil temps at 160, I would have been better off with no cooler at all! And essentially that’s what the oil thermostat will provide, alowing the cooler to start working when needed.

We’ll see, in our next driving season, how this works :-)

Byron
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funwithmonkeys
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Re: Engine oil Thermostat

Post by funwithmonkeys »

Thank for the info Byron. It took a very long pull in 4th up a long hill at 7k+ rpm to get that temp. Normally driving it sits at about 180. In Temps at 20c air temp I can't get the oil over 200 while really caning it. I don't want to have at 6 to 8k rpm to get my oil temp in the proper range. Without the cooler it was going past 220 on normal driving around.
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Byron510
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Re: Engine oil Thermostat

Post by Byron510 »

With your comment Norm, it sounds like we both need help getting our oil temps up.
I just hope the 200 thermostat will be enough. Obviously it’ll help, and help the motor warm up quicker.
I’ll keep you posted.

Byron
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Byron510
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Re: Engine oil Thermostat

Post by Byron510 »

The oil thermostat arrived Friday afternoon. Nothing like opening a package, kind of makes you feel like a kid at Christmas- I never loose that feeling!
Anyways, the packaging is neat and tidy, I give it that, with its foam filled box. And my first reaction was that the unit is small! A lot smaller than expected.
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The port configuration is perfect for the L motor, the writing can even stay correct with its final location between my remote filter and the heat exchanger connections on the rad, with the cooler side connections going straight forward. However the mounting bracket is pretty light duty - this May be modified.
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In these photos, I show the oil inlet and the thermostat itself.
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The bypass in the unit is easy to see.

So the purchase was the easy part, now time for some plumbing.
I was always concerned that my original cooler lines were a bit short, as you don’t want flex on the motor to be absorbed by the fittings themselves. The line is fairly stiff. I definitely don’t want to further shorten the lines.
I’d like to plumb the lines on the chassis with rigid tubing as I can make the packaging much tidier. But we’ll see.

Well, it’s on the project list.

Byron
Love people and use things,
because the opposite never works.
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