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Author Topic: Temp sensor/transmitter  (Read 181 times)

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Temp sensor/transmitter
« on: 12 April 2013, 10:07:07 am »
Just got a new temp sensor to fit the tdi (to try get the guage more accurate) and wondered about whether to use some sealant on it or not? It comes with an ally washer so maybe not but thought Id check on ere first ;D
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Re: Temp sensor/transmitter
« Reply #1 on: 12 April 2013, 11:48:23 am »
Normally use some PTFE tape for stuff like that, more as a belt and braces than anything else.
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Re: Temp sensor/transmitter
« Reply #2 on: 12 April 2013, 11:59:10 am »
I am doing the same.

However,  I saw a post from glencoyne on the LRUK forum saying that he had used a range rover tdi engine and the sender was pretty accurate.
This was endorsed by someone else on the forum.

I have got one and will see what happens when my engine gets fired up and plumbed in, in a couple of months!

http://forum.landrovernet.com/showthread.php/239057-200TDi-temp-sender-(again)?highlight=sender

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Re: Temp sensor/transmitter
« Reply #3 on: 12 April 2013, 07:44:46 pm »
I read the same thread and thats the sender going in so will see what happens :smile1 Think I'll put just a wind or two of ptfe tape on the sender then ;-)
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Re: Temp sensor/transmitter
« Reply #4 on: 12 April 2013, 07:51:32 pm »
If your using PTFE go steady ,if you use too much it can have the effect of spreading and then cracking the thing your screwing into.I say this as a plumber who uses it a lot and has split many a fitting using it .It might not be a problem with a cast block etc but go steady with anything alloy or monkey metal .
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Re: Temp sensor/transmitter
« Reply #5 on: 12 April 2013, 08:17:40 pm »
I am usually tempted to rely on the tapered threads or sealing washers on temp senders to be leak proof. Remember that they earth through the body of the sender to the head/block sealant or ptfe can hinder the earth and possibly the accuracy.
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Re: Temp sensor/transmitter
« Reply #6 on: 12 April 2013, 09:25:39 pm »
Some good points there. It has the washer so I'll try it without tape first & see if it seals ok :thumbs:
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Re: Temp sensor/transmitter
« Reply #7 on: 12 April 2013, 09:45:15 pm »
Also be aware that a mismatch may be experienced if you are using a pattern sender, and it will over read. Genuine or "old" senders do not have this issue.
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