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Temperature senders?

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aintgotitmusthaveit Officially Full-On Dubber

295 posts · joined Jun 2006 ·

#613202
Hi y'all.
I have concluded that the temperature sender on my new engine is not compatable with the gauge in my car. It reports hot when a probe into the oil says it aint!
So, I have the original sender that matches my gauge from my original engine but its stripped (and is the sump type whil teh new one sits in the case). It has numbers T4806 on it.
How do I work out what resistance range it is?
It is as simple as putting a ohm meter on it while heating it up and ensuring a new one maps out the same?
Can gauges be calibrated for the particular sender?
Other than Howard instruments who in melbourne knows about this sort of stuff?

xornge666x Wolfsburg Wizard

460 posts · joined Sep 2006 ·

#613218
http://www.autoinstrumentrepairs.com.au/
they are in glenvale cres, Mulgrave
these guys are really good.
you need to match the ohms to the guage, and they can work out what the guage has, and order you a sender to suit.

greedy53 Bishop of Volkswagenism

3,062 posts · joined Mar 2006 ·

#613413
again ask and you shell be told love you guys and gals so much knolage here
👍👍😂🙅🥷😬🤓

blutopless2 DAMSLO

2,457 posts · joined Jan 2004 ·

#613488
to work out the resistance range of the new sender you are correct. put a multimeter on it as you heat it up to get the range it operates over (matching it to the gauge of course).
eg.. if the gauge is scaled from 50-150deg C then that is what you need to test the sender at and see if it matches the gauge requirements. if not the gauge can be recalibrated to suit the sender - depending upon the type of internals in the gauge. some of the cheaper stuff will not be able to be recalibrated as the arms etc are all fixed.
howard instruments are pretty good. also a place on maroondah highway as you head into ringwood - cant think of their name.
see.... air and water do mix 😉

1974 1300
1997 MK3 Golf GL
2003 NB Cabrio
2012 Golf VI GTI
2014 Audi A4 Quattro

57oval Officially Full-On Dubber

305 posts · joined Oct 2006 ·

#613576
Is it a VDO gauge, Min & Max temp?