Need to replace my temp sender unit on the head, just a quick question do i need to drain my coolant at all if there a chance of unscrewing it and getting cover in water and anti freeze or not and should i use any ptfe tape for good measure

Tempeture Sender Unit
Started by
hobnob888
, Nov 01 2012 04:01 PM
6 replies to this topic
#1
Posted 01 November 2012 - 04:01 PM
#2
Posted 01 November 2012 - 04:15 PM
The fit should be more than water tight, if the old one isn't leaking I'd guess the new one won't either.
I put a smear of copper grease on mine, but I like copper grease!
And yes, you can definitely swap them over with hardly any coolant loss. Unscrew the old one while applying pressure against it, then once you're unthreaded - switch em over Indiana Jones style and you're sorted
I put a smear of copper grease on mine, but I like copper grease!
And yes, you can definitely swap them over with hardly any coolant loss. Unscrew the old one while applying pressure against it, then once you're unthreaded - switch em over Indiana Jones style and you're sorted

#3
Posted 01 November 2012 - 04:17 PM
aha alright cheers lad
#4
Posted 01 November 2012 - 04:20 PM
It shouldn't leak much, jack up that side of the car. I think I'd dry the threads 'n grease them, but the sensor has a tapered seat that seals (like a brake union) so no need for ptfe tape.
#5
Posted 01 November 2012 - 04:25 PM
Jacking up, I like it!
Although does leave me with no use for my Indy hat and mp3's now
Although does leave me with no use for my Indy hat and mp3's now

#6
Posted 01 November 2012 - 04:31 PM
Yeh mine didn't leak much, maybe just about enough to warrant topping up a little afterwards. The thread is long so it won't leak. Just don't ruin the tread by rushing too much!
#7
Posted 01 November 2012 - 05:03 PM
this is all good, but seeing as it wont un-do at all, im pretty much stuffed, my dads got the blow torch and copper hammer so i cant use those, just a 5/6 spanner and socket and a lot of wd-40
but it will not move

Edited by hobnob888, 01 November 2012 - 05:03 PM.
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