The Rig

iTrader: (13)

i have a greddy oil temp dial which did have an original temp probe etc.
Time took its tole and it broke recently while the car was having some work done.

The original temp sensor is about £50 and from the states only.

bought an aftermarket one and an m16 - 1/8 npt adapter and fitted it, the sensor leaked around the thread (1/8npt part) then i broke it tightening it, bugger, £20 down the drain.

anyhoo,anyone else have issues with these sensors going into sandwich plates/cylinder 3 area,same principal

i have read some put a sealant around the thread, say silicon etc, the old one never needed this, just weird why a new one would ???

thoughts

cheers

340BHP-WRX

iTrader: (6)

I had the same problem with a leak around the sender. I used Loctite Lock and Seal which still leaked initially but then seemed to seal up and has been fine since.

Most people say to use PTFE thread tape

mickywrx

iTrader: (29)

Don't quote me on this, but, I believe some are tapered and some aren't.

Tapered threads you shouldn't need any thread tape to seal, however un-tapered you will.

The Rig

iTrader: (13)

cheers,i tried the ptfe stuff but even with a slither it made the thread tight and i couldnt do it up well enough.

least im not alone,just gutted i snapped the sensor off in the adpater piece,so its a binned thread adapter and sensor,live n learn,do not overtighten these things ha ha !

cheers

340BHP-WRX

iTrader: (6)

1/8 NPT is a Tapered thread isn't it ?

340BHP-WRX

iTrader: (6)

I had the same problem with the PTFE tape. A few people told me you can get different thickness tape which I didn't realise at the time. Maybe try some really thin stuff.

The Loctite Lock and Seal is a liquid so you just apply that to the sender threads and then tighten it up.

Maybe worth trying that as it seems to have done the trick with mine

The Rig

iTrader: (13)

will do, nothings ever simple !
like i said above, i suppose you get what you pay for, the original greddy one has been undone done up loads and no sniff of loctite or tape to seal it, the threads just lock together and seal !

ah well

cheers

The Rig

iTrader: (13)

Prob use this,nice slither of it

http://www.screwfix.com/search.do;js...=silicone+heat

340BHP-WRX

iTrader: (6)

I used this: Loctite Lock 'N' Seal 3ml from Halfords Price £2.99

mickywrx

iTrader: (29)

I have no idea. I meant that some threads are tapered and others aren't.

Plumbing of any nature is a total minefield for me.

Managed to fit some new gauge's today though, luckily for me, all I had to do was swap sensors; and then get a mate to help with the lighting wiring.

The Rig

iTrader: (13)

well,got it all fitted, used the threadlock/sealant stuff,applied it to the sensor 1st and installed it and gave it a day to dry then fitted it together with the m16/1/8 adapter,no leaks,cool.

BUT,theres always a but

my greddy gauge starts at 30 degrees C,the sensor states from 0 - 150 degrees C,but when cold the reading is 70 degrees C and it continues off the gauge past 150,so kinda hmm????

surely the greddy gauge isnt calibrated to only use a greddy sensor etc ??????

do these things need time to adjust ?

stumped

mickywrx

iTrader: (29)

Got a feeling you'll need the GReddy temp sensor.