Oil Temps over 260 degrees F
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Tourer
Joined: Sep 2009
Posts: 261
Likes: 25
From: Mims, FL
Oil Temps over 260 degrees F
I know this is a bit lengthily, but I wanted to give as much information as possible to see if someone could steer me in the right direction.
I have a 07 FLHTCU with the HD Premium Oil Cooler. THe oil cooler has been on the bike since new and I believe it has an internal thermostat that opens at 185 degrees. I just got the bike back from an oil/filter change and instead of the HD synthetic oil I had the mech put in Amzoil. That is the only thing changed from before.
Last year I installed a Dakota Digital Dash, which shows (LED) my oil temp. This summer, the dash gauge started blinking at me showing the oil temp had reached 250 degrees. Outside air temps were in the mid 90's, but it is always that hot here in Florida. I got worried, pulled over and checked the oil level (stock HD dipstick). The level was a bit above FULL. I let the bike cool down a bit, started up and continued on. The oil temp had gone down to acceptable temp by then. About 15 minutes later the same thing happened. I stopped at the next Harley dealer I came too and purchased the new Digital readout dipstick and installed that. I was thinking the digital gauge in the dash had to be wrong. Well, the dipstick matched the information I was receiving from the digital dash.
On the way home, the oil temp once again rose to a very high level (over 250 degrees). After I got home I checked the oil level, with the new dipstick, and wound up taking out almost a pint of oil to get the oil level down to what it is supposed to be.
At this point I am wondering if the thermostat is not opening completely in the oil cooler?
Could it be the Amzoil? Although I was told that using Amzoil should lower the oil temps.
Is there a way to check and see if, in fact, the thermostat is not opening or not opening fully?
Or, is there something else that I am overlooking altogether?
Any suggestions would be greatly appreciated.
I have a 07 FLHTCU with the HD Premium Oil Cooler. THe oil cooler has been on the bike since new and I believe it has an internal thermostat that opens at 185 degrees. I just got the bike back from an oil/filter change and instead of the HD synthetic oil I had the mech put in Amzoil. That is the only thing changed from before.
Last year I installed a Dakota Digital Dash, which shows (LED) my oil temp. This summer, the dash gauge started blinking at me showing the oil temp had reached 250 degrees. Outside air temps were in the mid 90's, but it is always that hot here in Florida. I got worried, pulled over and checked the oil level (stock HD dipstick). The level was a bit above FULL. I let the bike cool down a bit, started up and continued on. The oil temp had gone down to acceptable temp by then. About 15 minutes later the same thing happened. I stopped at the next Harley dealer I came too and purchased the new Digital readout dipstick and installed that. I was thinking the digital gauge in the dash had to be wrong. Well, the dipstick matched the information I was receiving from the digital dash.
On the way home, the oil temp once again rose to a very high level (over 250 degrees). After I got home I checked the oil level, with the new dipstick, and wound up taking out almost a pint of oil to get the oil level down to what it is supposed to be.
At this point I am wondering if the thermostat is not opening completely in the oil cooler?
Could it be the Amzoil? Although I was told that using Amzoil should lower the oil temps.
Is there a way to check and see if, in fact, the thermostat is not opening or not opening fully?
Or, is there something else that I am overlooking altogether?
Any suggestions would be greatly appreciated.
Tourer
Joined: Feb 2009
Posts: 404
Likes: 0
From: L.A. (Lower Alabama)
You could prep your tools. Then ride, staying very local. When the oil gets hot, whip on home and pull one of the lines off the cooler. If oil shoots out, its open. In your case I would think about a bad or incorrect filter.
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