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Thread: Temp gauge goes to max on switching off

  1. #16
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    Re: Temp gauge goes to max on switching off

    Quote Originally Posted by Aussie Dave View Post
    Ummmm, you guys are prob more into this than me, but, what was that comment about the radatior cap being from a Honda car? I assume it is the correct pressure rating.... .
    Yes correct pressure rating. The reason we take this route is that a Honda item for the Bird costs £40.66 in the UK, I picked up two Honda car items for £11 from my local motor factors.
    Full of Hot air? Intercool yourself............ you know it makes sense

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  3. #17

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    Re: Temp gauge goes to max on switching off

    Quote Originally Posted by TheDuck View Post
    Yes correct pressure rating. The reason we take this route is that a Honda item for the Bird costs £40.66 in the UK, I picked up two Honda car items for £11 from my local motor factors.
    Any chance you have a part number for those car caps please ?

  4. #18

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    Re: Temp gauge goes to max on switching off

    IIRC cap from a Civic is the same.
    https://www.ebay.co.uk/itm/Honda-Civ...cAAOSwbsBXijOK
    carpe diem

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  6. #19
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    Re: Temp gauge goes to max on switching off

    Well I dragged myself away from the DR today and sorted (?) Daily Bird.

    Thermostat replaced, yes it is easy to do just by lifting the rear of the tank, no need to take the tank off, a relief to me since I had stupidly brimmed the tank two days ago. The old one tested fine.

    Rad cap replaced because I have a spare new item.

    Water pump replaced ... because I had a low mileage spare.

    Temp sensor replaced on rad. Now that is where things get 'interesting' (non nerds need to look away now). This aftermarket one was sold for the Bird but came marked as opening at 85 dec C, (i.e. turns the fan on at 85 dec C) so I decided to test the one that I had taken out in my powder coating oven. The removed one was was also sold as a Bird item but had no markings. Test showed the old one turned the fan on at 100 deg C (or very close to).

    Having found that out I realised that I didn't know what the OE switch should turn the fan on at! Anybody know? Past experience says close to 100C but I don't know if the OE item comes with a marking.

    The result of my work is that the fan now comes on 'early' so I can't replicate my original fault where the gauge needle hits 12 O'Clock but with the fan running earlier I can imagine I am putting more stress on the charging system ....... but this set up should be a real bonus in the hotter climes of my 'tours' .... oh yes, plans have changed due to lack of ferries when I wanted to travel this year (and my wife's lack of enthusiasm for ferries) so instead of Spain/Portugal looks like I'm heading back to the Balkans this year Didn't spend enough time there so I really fancy a return visit
    Full of Hot air? Intercool yourself............ you know it makes sense

  7. #20

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    Re: Temp gauge goes to max on switching off

    the thermostat was far easier than i thought i found if you remove the hoses first gives much more room ,and a long extension
    for the bottom bolt worked well

  8. #21

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    Re: Temp gauge goes to max on switching off

    HI Duck assuming mine was the original judging by the state of the seal it probably is it has 82.c stamped on it

  9. #22

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    Re: Temp gauge goes to max on switching off

    Quote Originally Posted by TheDuck View Post

    Having found that out I realised that I didn't know what the OE switch should turn the fan on at! Anybody know?
    Haynes says "fan on at 98-102 fan off at 93-97 'C

    The nerd in me want to inquire how you tested the unit inside an oven?

  10. #23

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    Re: Temp gauge goes to max on switching off

    Would think fan on as fizzy says is correct. If it comes on at 82, your not really going to be running at optimum temp, not ideal for engine as will run too cool all of the time.
    The answer is 42

  11. #24
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    Re: Temp gauge goes to max on switching off

    Quote Originally Posted by Krisbiker2 View Post
    Would think fan on as fizzy says is correct. If it comes on at 82, your not really going to be running at optimum temp, not ideal for engine as will run too cool all of the time.
    That's what I'm thinking as well, strangely the Honda WS manual doesn't (as far as I can see) give a temp for the sensor but it does say that the thermostat starts to open at 80-84 C and fully open at 95 C which would tie in with the fan coming on just after the thermostat being fully open.

    Quote Originally Posted by waynecbrxx1100
    HI Duck assuming mine was the original judging by the state of the seal it probably is it has 82.c stamped on it
    I'm guessing based on what is in this thread so far that yours has been changed at some time.

    Quote Originally Posted by fizzy
    The nerd in me want to inquire how you tested the unit inside an oven?
    with great care .…. the oven is big enough to get arms inside without getting burnt so I wired the sensor up and as the temp increased I measured the resistance change and compared it to when the sensor was cold.


    Last edited by TheDuck; 05-04-2019 at 10:40 PM.
    Full of Hot air? Intercool yourself............ you know it makes sense

  12. #25

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    Re: Temp gauge goes to max on switching off

    Isn’t there a small resistor in the back of the gauge that may have gone / be going belly up and creating open circuit ?

  13. #26
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    Re: Temp gauge goes to max on switching off

    Quote Originally Posted by Rocketeer View Post
    Isn’t there a small resistor in the back of the gauge that may have gone / be going belly up and creating open circuit ?
    Quite possibly, need to dig out my spares and have a good look!

    Anyway, early start time in the garage for me today. Fairings off (again), coolant drained, sensor in the rad changed back to the 100 C one, refilled and run up to mid temp all by 8.45 am! Motor now cooling so I can check the coolant level then up to 'fan on' ..... which I think needs to be a bit later since neighbours might not be keen to hear daily Bird at this time of the day
    Full of Hot air? Intercool yourself............ you know it makes sense

  14. #27
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    Re: Temp gauge goes to max on switching off

    Well it's all gone pear shaped today!
    When I ran the bike up to 'fan on' and switched off the fault on the gauge was still there ....... so out with the gauges (temp and petrol) as a unit and swapped for my 'spares'.
    On this set the fuel gauge instantly hits the 12.00 stop! Out with the gauges and 'finger test' and low and behold rather than falling the needle continues to 12.00
    https://youtu.be/p6xPAuqLFHE

    and just for the record here is the temp gauge misbehaving!
    https://youtu.be/Nkf2Lhmk6pc

    Yes both are out of focus but I didn't have a spare hand to sort that! Oh yes, I was listening to the News
    Full of Hot air? Intercool yourself............ you know it makes sense

  15. #28

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    Re: Temp gauge goes to max on switching off

    So you just changed that unit? Tried a complete set of clocks?
    carpe diem

  16. #29
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    Re: Temp gauge goes to max on switching off

    Quote Originally Posted by TheDuck View Post
    Oh yes, I was listening to the News
    Have you tried seeing a shrink about this self-harming behaviour?
    TheDuck likes this.
    Well, I thought I had some special buttons now, but some people have even specialer buttons.

  17. #30

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    Re: Temp gauge goes to max on switching off

    https://www.youtube.com/watch?v=MdPR...ature=youtu.be

    GQT in the background I dont even have garden.
    Jetfire likes this.
    carpe diem


 
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