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Old May 4, 2017 | 02:49 PM
  #31  
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Originally Posted by Heatwave
The simplest measure of "what temp is too hot" (beyond rider comfort) is when do the engine designers decide to take spark advance away from the engine.
The point at which spark is removed based on temperature has nothing at all to do with safe temperatures! It DOES have to do with how the combustion process works!
 
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Old May 4, 2017 | 02:56 PM
  #32  
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Originally Posted by cruisinmann
Just took a 4700 mile ride to west texas along mexico border. Temps were 96-100 down there running all day between 50-80 mph. Don't know what head temps were but oil pan temps ran 219 to 228 highest and it was hot out. Have original header pipe heat was only really noticeable when going slow otherwise no big deal. Now a passenger may feel differently.

Overall bike ran great without an issue averaging 44-45 mpg
How did you measure the pan temps?
 
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Old May 4, 2017 | 03:08 PM
  #33  
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Originally Posted by lionsm13
Did not know that both are?
When they wet head first came out it was only the rear cylinder that was liquid cooled was it not?
If both are liquid cooled now and the temp is still hot then there is something terribly wrong, IMHO.
The Rushmore DualCools (water cooled exhaust valves) have always had the coolant passages in BOTH HEADS since they hit the showrooms in August 2013. What made you think otherwise?

Dave
 
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Old May 4, 2017 | 05:36 PM
  #34  
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Originally Posted by Max Headflow
How did you measure the pan temps?
Like this. HD part #75324-05A
 
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Old May 4, 2017 | 07:59 PM
  #35  
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Originally Posted by Wide Open Cycles
Like this. HD part #75324-05A
How did he get the TC oil pan to fit the M8?
 
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Old May 4, 2017 | 08:42 PM
  #36  
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Originally Posted by Max Headflow
How did he get the TC oil pan to fit the M8?
good question, I assumed the m8 oil pan has a plug like the twincam. I guess not? Maybe one of those worthless dip stick thermometer things?
 
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Old May 4, 2017 | 08:49 PM
  #37  
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Originally Posted by Wide Open Cycles
good question, I assumed the m8 oil pan has a plug like the twincam. I guess not? Maybe one of those worthless dip stick thermometer things?
It has a spot where one can go in but we don't knw what the OP used which is why I asked. I got one of those useless dipstick things.. Seems to work OK.. What make them useless.. No Bluetooth?
 
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Old May 4, 2017 | 09:07 PM
  #38  
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Originally Posted by Max Headflow
It has a spot where one can go in but we don't knw what the OP used which is why I asked. I got one of those useless dipstick things.. Seems to work OK.. What make them useless.. No Bluetooth?
the analog ones are good, I'm talking about the digital ones being, IMO, worthless. They don't seam to last very long.
 
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Old May 5, 2017 | 12:29 AM
  #39  
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Originally Posted by Wide Open Cycles
the analog ones are good, I'm talking about the digital ones being, IMO, worthless. They don't seam to last very long.
Yeah, You are right about that.. The 'lectric dipsticks ain't that hot. I like the mechanical ones.
 
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Old May 5, 2017 | 07:20 AM
  #40  
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yea was electrical dip stick, my twin cam I put the sensor in the pan with a gauge and I had a dipstick. Temp would differ but not by a lot, I'm talking within 10 degrees or so.

Just saying what it was running in pretty hot all day riding at times running 80 from fill to empty temps were stable in that area. Even if its off 20 degrees its no big deal
 
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