Click for Perko Click for Ocean Alexander Click for Abeking Click for JetForums Click for Mulder

Reattaching sensor to base

Discussion in 'Technical Discussion' started by jesid123, Mar 18, 2018.

You need to be registered and signed in to view this content.
  1. jesid123, Mar 18, 2018
    #1
    jesid123

    jesid123 New Member

    Joined:
    Jun 8, 2006
    Messages:
    23
    I have a sensor that broke off the base (this is on an exhaust pipe). Can I reattach it with an adhesive or do I need to replace the whole thing? Thanks.

    Admin Edit: Pic has been resized. It was 33 megs! PLEASE be considerate of people that are on satnav.

    Attached Files:

    Last edited by a moderator: Mar 18, 2018
  2. MBevins, Mar 18, 2018
    #2
    MBevins

    MBevins Senior Member

    Joined:
    May 23, 2008
    Messages:
    1,225
    Location:
    Windsor On. Canada
    Yes clean the surfaces and attach with a temperature appropriate epoxy.
  3. Capt Ralph, Mar 18, 2018
    #3
    Capt Ralph

    Capt Ralph Senior Member

    Joined:
    Sep 8, 2004
    Messages:
    13,442
    Location:
    Satsuma, FL
    Yes, use a heavy and hopefully a metal filled epoxy to conduct the heat to the sensor. Keep it thin.
    Or, consider purchasing a new sender and remove all issues.
    This sender could save your engine. Would you really want to cut corners here?
  4. 30West, Mar 19, 2018
    #4
    30West

    30West Member

    Joined:
    Nov 14, 2016
    Messages:
    246
    Location:
    Holland, Michigan
    Use a heat sink epoxy like the manufacturer does. Read the instructions, prep it, stick it.
  5. captholli, Mar 19, 2018
    #5
    captholli

    captholli Senior Member

    Joined:
    Jan 4, 2010
    Messages:
    1,184
    Location:
    In The Bilge

    $40.00 dollar surface mount thermocouple factory calibrated. This sensor is too critical safety wise to guess and miss. Just purchase new and be done with it. There should be a stainless tag on your spray ring with the exhaust MFG to order from.
  6. 30West, Mar 19, 2018
    #6
    30West

    30West Member

    Joined:
    Nov 14, 2016
    Messages:
    246
    Location:
    Holland, Michigan
    $40? Yeah, not worth fiddling with. Check that wire isn't tied too tight, keeping the wire in tension all the time.

    This might be a calibrated sensor, but the way it is epoxied to a plate that is clamped to a tab that is welded to the exhaust, probably doesn't have to be all that precise.
  7. captholli, Mar 19, 2018
    #7
    captholli

    captholli Senior Member

    Joined:
    Jan 4, 2010
    Messages:
    1,184
    Location:
    In The Bilge
    I figure that there's a heat conductive paste between the sensor's base plate and the welded tab to ensure a clean contact and inhibit corrosion.
  8. jesid123, Mar 20, 2018
    #8
    jesid123

    jesid123 New Member

    Joined:
    Jun 8, 2006
    Messages:
    23
    Thanks for all the replies.
    I think I'm going to go ahead and replace the whole sensor just to be safe.
  9. Capt Ralph, Mar 20, 2018
    #9
    Capt Ralph

    Capt Ralph Senior Member

    Joined:
    Sep 8, 2004
    Messages:
    13,442
    Location:
    Satsuma, FL
    Good show.
    Inspect the other sensors also before you order. They could be coming of age and getting loose.
  10. Jorge Lang, Mar 21, 2018
    #10
    Jorge Lang

    Jorge Lang Senior Member

    Joined:
    Nov 17, 2003
    Messages:
    297
    Location:
    Fort Lauderdale
    You will need to know if it is a normally open, or normally closed switch before you go in search of. Any good place you go should ask you that as sometimes the number on the switch can't be crossed-referenced. Let me know if you need additional help with this.
  11. 30West, Mar 22, 2018
    #11
    30West

    30West Member

    Joined:
    Nov 14, 2016
    Messages:
    246
    Location:
    Holland, Michigan
    Unless the switch is also failed, you should be able to check if it is currently open or closed with a multi-meter. If it is failed, you can check the switch on the other side. Might be wise to replace both anyway, carry the old one that is still together as a spare.