Vehicle & Technical > Defender

Baffled!!

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diggerdog36:
I have an old one, but the threads are different on some 200tdi's, phone steve parker, tell him how many threads are on your current one and he'll supply you with one.  Some have 4 coarse threads, some have 6 fine threads!

How much are TIM guage set ups, and where can I get one, do they need to be in a certain temp range for certain engines??

j.stobart:
glad i found this thread, i got exactly the same problem, (200tdi converted 90 2.5td) its ok running about local, but as soon as I take it for a long run or work the engine hard, it just creeps all the way up to the red. Changed the gauge to the 200tdi gauge, still no joy, changed the viscous unit too, not a jot of diffenece, was gonna hit it with hammer next, I wasn't sure if it was overheating, but I took the header tank cap off and the was hardly even any pressure in it, so I assume its not overheating.

Range Rover Blues:
If your thermostat is working then you should find it sits in one place when warmed up.  This is roughly the temp stamped on the 'stat, if it sits in the wrong place on the guage then either the sender and guage are not matched or the voltage regulator is stuffed.  The later can sometimes cuase the fuel and temp guages to rise sllightly above idle.

If the guage creeps up when the engine is loaded then it's a cooling problem, even if it's just the 'stat is stuck open.

BK:
Wheres the voltage regulator on a 90? would this cause the lights to flicker slightly when the engines running?

mroxo:
I cant remeber if 200 and 300 tdi are the same but put a disco 300 in my 90td and chaned the sender to a black top unit and temp reads fine. There are several types which have different resistance and they are only 8 quid each. Much cheaper than 35 or so for a new guage.

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