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General Engine type change. Temperature sender advice

M

mmgemini

Big Landy Fan
When you do an engine change...
Take the sender unit out of the ORIGINAL engine that you are removing from the car.
FIT this sender unit into the NEW engine.That is..The one you are going to fit in the car.
Failure to do this will result in incorrect readings at the temperature gauge.

Should you want really accurate temperature gauge readings..Throw the electrical units away and fit a mechanical gauge with a bulb and a capillary tube with all the expense it entails.

Now not all sender units are interchangeable.Some have different diameters as well as different size threads.
Sorry but your on your own when that happens.

I recently fitted a SPA-UK water temperature gauge.The sender was a straight swap for the 300Tdi sender.
www.SPA-UK.co.uk
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Last edited by a moderator:
This is certainly the case when changing from a 2.25 Series 3 Engine to a 2.25 90 Engine. The 90 gauges run on a different voltage to the series so you need to keep the series senders.
 
well ive certianly got defender guages , il have a look through the parts book to see if the sender units are the same.
thanks for the info mmgemini.
 
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