Volvo RWD 120-130 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 5/2014 120-130 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

temp sender 120-130

posted by  voice122 on  Sun Mar 19 00:01 CST 2017
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 20 00:08 CST 2014
[RELATED]

Hello All

I have a B20 head in my car and am having trouble getting the original temperature sender to seal
Should i put some sort of sealant on the threads to help
Thanks in advance
David








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    temp sender 120-130

    posted by  Danny on  Sun Mar 19 07:41 CST 2017
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Mon Oct 6 22:01 CST 2014
    [RELATED]

    I think the threaded collar applies pressure to the sending bulb itself, so the threads shouldn't be an issue.

    is the threaded collar tight? There shouldn't be any movement of the sending unit in the head when the nut is tightened down

    I'd remove everything and clean well - the underside of the sealing lip on the sending unit and inside the hole in the head where the sending unit seats. Maybe try one of those cylindrical wire brushes used to clean inside 1/2" or 5/8" copper sweat fittings. You might have to wick some water out of the head to see interior sealing surface







    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      temp sender 120-130

      posted by  Ron Kwas on  Mon Mar 20 04:22 CST 2017
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Fri Oct 24 04:03 CST 2014
      [RELATED]

      David;

      I agree with Danny...the overnut seals onto the upper flat surface on the (brass) Temp Sensing Bulb, and pushes (and seals its lower conical seat into a matching conical seat in the head...these should be clean for good sealing)...trick is to seal the overnut to head threads, but NOT to unite the TSB with the overnut by gooping between the two with sealer...when the sealer is baked on and the two are united, it will cause the capillary tube to twist when loosening it next time...very undesirable! I even put just a little graphite grease between the TSB and overnut to prevent locking the two together...

      Good Hunting!







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.