Air Temperature Gauge

Discussion in 'General Harley Davidson Topic' started by Michael15956, Aug 21, 2009.

  1. Michael15956

    Michael15956 Member

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    I own a 2002 Glide with no owner's manual. So, why is there an air temperature gauge? Does it register the outside air?
     
  2. glider

    glider Veteran Member

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    It does but they are usually very inaccurate and a lot of people replace the unit with an oil pressure gauge.
     
  3. Nuke99

    Nuke99 Member

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    Glider, did you mean an oil temperature gage? My FLHT has both an air temperature and oil pressure gage. I am thinking of replacing the air temperature gage (you are correct, very inaccurate) with an oil temperature gage when I figure out how to do it.
     
  4. glider

    glider Veteran Member

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    Sorry, my mistake....yes oil TEMP.:s
     
  5. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    Here ya go:

    Oil Temp Gauge Installation - Harley Davidson Community

    TQ
     
  6. Nuke99

    Nuke99 Member

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    Thanks TQ. Very specific instructions. But I will need to think about that for awhile. Nervous about removing tank and needing to pull the crankcase plug. Looks like several opportunities to get into trouble.
     
  7. The4opps1

    The4opps1 Junior Member

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    I replaced the ambient temp guage with a McEwan oil temp unit and am very happy with the results. The articles done by forum members are a great help with installation. Trust me, if I can do it, so can you. Just read the articles and decide if it's something you want to get involved with. Good luck.
     
  8. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    Nah! When I did mine, I did NOT pull the tank, but rather ran from the oil sending unit that you install in the front of the oil pan were there is currently a pipe plug (obviously do this after you drain the oil out of the drain plug!) to the right over where there is already a cable bundle run. I just ran the sending unit wire along that cable bundle to the front of the engine, tie-wrapping it every so often. Then I ran up the clutch cable housing to the inside of the fairing. You need to take the outer fairing off, but that is 7 screws!! Follow the instructions you get with the oil temp kit, and you will be good to go!!

    With BOTH a temp gauge, and a pressure gauge, you will have the tools to keep an eye on your engine's life blood!!

    Just do it!

    TQ
     
  9. 03classic

    03classic Junior Member

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    After reading this thread I looked at my air temp gauge a little more closely and noticed it seemed to be off.I was wondering if the temp probe was picking up on engine heat and not just ambient air.You can ride by 15 different banks and get 15 different temps depending on where the probe is mounted on the sign.
     
  10. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    Yeah. It's useless. You know what the temperature outside is by being there. You do not necessarily know how hot the oil is getting however. I really like having both an oil temp. and an oil pressure gauge on my dash. That lets me keep a close eye on the engine's life blood. Now if I only had a mass flow meter ...

    TQ