Results 1 to 6 of 6

Thread: Gen1 Thermostatic Fan Switch Temp thresholds?

  1. #1
    One Litre Duc Eater Paul D's Avatar
    Join Date
    Jan 2015
    Location
    Midlands (UK)
    Posts
    541

    Question Gen1 Thermostatic Fan Switch Temp thresholds?

    Folks,

    My thermostatic switch which turns fans on/off is playing up, as they are prone to do with age.

    Anyone know the on/off temp spec, approx price and a good supplier for the Gen 1 switches?

    I understand it's a M22 x 1.5 thread spec (29mm socket). Is that correct?

    Apparently can be hard to remove from the 3 way manifold on left side of bike due to locktite. I presume warming it will help, as I don't have an impact wrench. But will use a standard ratchet and give it a wack.

  2. #2
    One Litre Duc Eater Paul D's Avatar
    Join Date
    Jan 2015
    Location
    Midlands (UK)
    Posts
    541
    Apparently switch temp thresholds for Gen 1 & 2 are: 97C on, 93C off. Didn't realise it was quite so high... so will double check if faulty.
    - Thread spec confirmed as above!

    - I understand they retail for around 25.

    If anyone knows otherwise... please advise... thanks!

  3. #3
    One Litre Duc Eater Paul D's Avatar
    Join Date
    Jan 2015
    Location
    Midlands (UK)
    Posts
    541
    Yup, my unit is definately faulty.

    Discovered Fiat use exactly the same design of unit, but threshold are 92C on, 87C off. They can be picked up for around 10 to 20, so cheaper than Aprilia part.

    The std spec of 97/93C seems quite high, especially as running temp is around 76C

    Anyone know anyone who changed to a lower temp threshold switch?

    Any considerations... before I stop talking to myself?
    Last edited by Paul D; July 14th, 2016 at 10:19 AM.

  4. #4
    Evil Twin hs2300's Avatar
    Join Date
    Aug 2015
    Location
    Sheffield
    Posts
    439
    good job you knew the info saved us replying

  5. #5
    One Litre Duc Eater Paul D's Avatar
    Join Date
    Jan 2015
    Location
    Midlands (UK)
    Posts
    541
    Quote Originally Posted by hs2300 View Post
    good job you knew the info saved us replying
    Well... I do now. My previous input was a load of old cobblers!

    Discovered (before i bought one! ) the Fiat unit was a different thread size.

    Both my the old unit, and replacement, were stamped 95/92. (I think the earlier temp figures I posted above may have been for a Gen 2, but they were claimed to be for a Gen 1... Which means it's not only this forum which posts duff info, cough... )
    Having replaced it, I noted my fans now come on with a display indicated temp of 90C, and stop at an I indicated 86C. Which suits me fine!

    If anyone else needs to do a replacement, make sure you source a 29mm socket first. Not a common size in most standard socket sets, which typically go from 27mm to 30mm. Seally do one via Eurocarparts for 5.99, which is about as cheap as you can find anywhere.

    HTH's....

  6. #6
    One Litre Duc Eater
    Join Date
    Mar 2012
    Location
    southampton area
    Posts
    936
    Yeh, my gen2 is the higher temps

Similar Discussions

  1. Temp / Battery Volt / Fuel light connector/fault (Gen 1)
    By Paul D in forum Aprilia RSV Tuono
    Replies: 4
    Last Post: September 12th, 2015, 02:14 PM
  2. lap switch
    By bruces in forum Aprilia RSV Tuono
    Replies: 10
    Last Post: June 25th, 2011, 08:34 AM
  3. Cut out switch.
    By Ash in forum Aprilia RSV Tuono
    Replies: 6
    Last Post: February 10th, 2011, 08:42 AM
  4. what is the air temp sensor
    By AJ1 in forum Aprilia RSV Tuono
    Replies: 7
    Last Post: January 7th, 2010, 07:42 AM
  5. Tuono cylinder head water temp sensor
    By e_martini in forum Aprilia Tuono 1000
    Replies: 0
    Last Post: May 22nd, 2009, 02:11 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


SEO by vBSEO 3.6.1