Volvo RWD 444-544 Forum

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Thread sealant for B18 temperature sender threads? 444-544

posted by  someone claiming to be PV guy on  Mon Sep 26 20:36 CST 2022 [RELATED]

What should I use to seal the threads of the temperature sender plug that fits into the rear of the B18 engine head? Standard thread goop? Those nylon tape things? Mine leaks.








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Thread sealant for B18 temperature sender threads? 444-544

posted by  planetman on  Mon Sep 26 21:58 CST 2022
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:29 CST 2014
[RELATED]

Are you using a stock temperature gauge or an aftermarket?
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com








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Thread sealant for B18 temperature sender threads? 444-544

posted by  someone claiming to be PV guy on  Tue Sep 27 12:42 CST 2022 [RELATED]

I'm using the stock temp guage original with the car.








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Thread sealant for B18 temperature sender threads? 444-544

posted by  planetman on  Tue Sep 27 13:03 CST 2022
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:29 CST 2014
[RELATED]

That's odd as the threads are not supposed to seal the stock water sender.

The shape of the probe part of the sender is what makes the seal.

Try using some Permatex #2 non hardening sealant on the face of the probe that seats on the surface inside the head.

Is there any chance someone has replaced the capillary tube in an effort to repair the gauge?

I saw a thread a long time ago about a DIY repair where the stock capillary tube is removed and new 1 from an aftermarket gauge is installed.

Aftermarket gauges use a nut that isn't long enough to push the probe in far enough to make a proper seal inside the head and we have a fix that.
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com







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