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CVO Technical => Electronic Toys and Gadgets => Topic started by: longlast on January 21, 2018, 04:53:33 PM
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Where can a oil temperature sensor be installed?
Would it be in one of the two allen plugs in the forward front of the body of the oil filter? Top or bottom?
Also is 230/250f a good operating oil temp for the 110s and what's considered to hot?
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Where can a oil temperature sensor be installed?
Would it be in one of the two allen plugs in the forward front of the body of the oil filter? Top or bottom?
Also is 230/250f a good operating oil temp for the 110s and what's considered to hot?
For me the "other" hole in the front of the oil pan was always the easiest place for a temp sending unit. As to operating temp it's an air cooled motor so ambient temp will obviously make a difference. Harley says (or at least used to spec) that "normal" operating temp is approximately 230 (about 110c for those with the temp on the other side of the road [and all the rest of the world too]). A lot of reports of bikes seeing uncomfortably high temps on hot days though. I'd shoot for a comfortable reporting range.
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Cheers Don, I didn't think of that plug hole in the pan, I'll go for that :2vrolijk_21:
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You will get different readings depending upon where you install the sensor. The machining plug in the front of the oil pan is where the oil leaves the pan and goes to the oil pump. The temperature at that point is lower than it would be if you measured the temp where it enters the pan as it returns from the engine. My point is, don't fixate too much on an absolute number. It's more important to determine while riding what the usual temp range is for your bike under your riding conditions at your chosen point in the system. Once you know the "normal" range, you would only react to the gauge readings if they exceed what you normally expect to see. The "normal" range on a Harley is pretty wide compared to a modern car or truck that has a more sophisticated and controlled engine cooling system. You will have to compensate for ambient temperature as Don noted. Harley's "spec" is 230° F in standard ambient conditions, which is roughly 70° F. As the ambient temperature increases you would expect that 230° to also rise.
A long winded post to basically say, your results will vary.
Jerry
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Cheers Don, I didn't think of that plug hole in the pan, I'll go for that :2vrolijk_21:
It's an easy place to work from. Temps will be lower there than in the engine but that's nothing to worry about. You're always using the gauge to compare what is normal for your bike rather than some absolute standard anyway. Good luck!
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You will get different readings depending upon where you install the sensor. The machining plug in the front of the oil pan is where the oil leaves the pan and goes to the oil pump. The temperature at that point is lower than it would be if you measured the temp where it enters the pan as it returns from the engine. My point is, don't fixate too much on an absolute number. It's more important to determine while riding what the usual temp range is for your bike under your riding conditions at your chosen point in the system. Once you know the "normal" range, you would only react to the gauge readings if they exceed what you normally expect to see. The "normal" range on a Harley is pretty wide compared to a modern car or truck that has a more sophisticated and controlled engine cooling system. You will have to compensate for ambient temperature as Don noted. Harley's "spec" is 230° F in standard ambient conditions, which is roughly 70° F. As the ambient temperature increases you would expect that 230° to also rise.
A long winded post to basically say, your results will vary.
Jerry
Yeap, what Jerry said!
Someday I gotta learn to read ahead a few posts before answering..... :huepfenlol2:
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Notes taken :2vrolijk_21: :2vrolijk_21: guys
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I have my oil temp sensor in the oil line coming out of the filter and going to the oil cooler.
I use a Harley tee that allows for the temp sensor to be mounted out of the pan.
My oil temp is about as pure as I can make it without having it in the pan. I have no mounting location in the pan as I have the SE pan.
Both of these adaptations are on a 120R.
My oil temp going to the oil cooler is approx 225 degrees and 170 coming out of the cooler.
My head temp, as measured by the Harley internal temp sender is approx 255 at speed. I have never seen a head temp over 300 in the entire 10K of miles.on my 120R.
As previously stated, establishing a range is more important than an absolute number.
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