Temp sender for 200tdi

Jowniofownio212 · Jan 11, 2019

evening

I have bought a 110 1987 defender which has previously had a 200tdi conversion on it. The temperature gauge goes up to max after about 5/10 mins of driving. The engine isn’t hot and I was told when I bought it that a discovery sender is fitted and it’s the wrong one so I need to get a 200tdi defender one.

I have just bought a 200tdi defender one with part number PRC 8593 but the thread into my thermostat housing is a lot finer so it doesn’t fit.

The engine number starts 14L so not sure what engine is in now if the 200tdi defender sensor is wrong?

Any advice?

Thanks

Turboman · Jan 11, 2019

Jowniofownio212 said:
evening

I have bought a 110 1987 defender which has previously had a 200tdi conversion on it. The temperature gauge goes up to max after about 5/10 mins of driving. The engine isn’t hot and I was told when I bought it that a discovery sender is fitted and it’s the wrong one so I need to get a 200tdi defender one.

I have just bought a 200tdi defender one with part number PRC 8593 but the thread into my thermostat housing is a lot finer so it doesn’t fit.

The engine number starts 14L so not sure what engine is in now if the 200tdi defender sensor is wrong?

Any advice?

Thanks

14L appears to be an engine out of a Range Rover Classic, try a sensor for that.

As an aside, that is a 1987 One Ten.

callisr · Jan 11, 2019

May also be worth giving Steve Parker’s a call. They sell a lot of conversion parts and seem to know their stuff....
Rich

Jowniofownio212 · Jan 11, 2019

Turboman said:
14L appears to be an engine out of a Range Rover Classic, try a sensor for that.

As an aside, that is a 1987 One Ten.

Strange. I was told the engine is out of a defender? Take it I was miss informed and it’s out of an old discovery? I take it then the gauge I have is for the defender sensor and the sensor I in is for the discovery.

payydg · Jan 11, 2019

Just replace it with a mechanical one

Jowniofownio212 · Jan 12, 2019

payydg said:
Just replace it with a mechanical one

Replace what with a mechanical one?

flat · Jan 12, 2019

Jowniofownio212 said:
Replace what with a mechanical one?

Replace the standard gauge with a mechanical capillary durite gauge - about £30 and much more reliable and accurate.

Just measure the thread of the old sensor so you know your thread pitch when you order the replacment.

If you have a disco or rr engine in your defender there is no point buying defender engine parts and expecting them to fit - you need to buy engine parts as per the donor vehicle not the vehicle the engine has been fitted in.

Just because it’s in a defender doesn’t magically make it a defender engine.

Is the turbo up high or down low?

tottot · Jan 12, 2019

+1 repace with a capillary gauge that reads in numbers/degrees and know the actual temp. TIM is another make.

Turboman · Jan 12, 2019

Jowniofownio212 said:
Strange. I was told the engine is out of a defender? Take it I was miss informed and it’s out of an old discovery? I take it then the gauge I have is for the defender sensor and the sensor I in is for the discovery.

The engine number says it is out of a Range Rover Classic.

Jowniofownio212 · Jan 12, 2019

flat said:
Replace the standard gauge with a mechanical capillary durite gauge - about £30 and much more reliable and accurate.

Just measure the thread of the old sensor so you know your thread pitch when you order the replacment.

If you have a disco or rr engine in your defender there is no point buying defender engine parts and expecting them to fit - you need to buy engine parts as per the donor vehicle not the vehicle the engine has been fitted in.

Just because it’s in a defender doesn’t magically make it a defender engine.

Is the turbo up high or down low?

Like I said, I thought the engine was from a defender as that’s how it was advertised. The turbo is up high, see photo attached.

Where would I find a capillary type that would fit the thermostat hole threads?

I have access to a lathe so could I not just make a reducing bush to thread into the housing and fit the PRC 8593 into it to work with my defender gauge?

Turboman · Jan 12, 2019

Jowniofownio212 said:
Like I said, I thought the engine was from a defender as that’s how it was advertised. The turbo is up high, see photo attached.

Where would I find a capillary type that would fit the thermostat hole threads?

I have access to a lathe so could I not just make a reducing bush to thread into the housing and fit the PRC 8593 into it to work with my defender gauge?

People are always swapping the engines around, many of them have no idea where the engine came from.

I would do like he suggested^^^^^^^^^, and ring Steve Parker. or John Craddock, they know the game inside out. Give them your engine number and ask what they suggest.

mick 1986 · Jan 12, 2019

Jowniofownio212 said:
Like I said, I thought the engine was from a defender as that’s how it was advertised. The turbo is up high, see photo attached.

Where would I find a capillary type that would fit the thermostat hole threads?

I have access to a lathe so could I not just make a reducing bush to thread into the housing and fit the PRC 8593 into it to work with my defender gauge?

If you have a lathe, and the knowledge to use it, why ask the question in the first place?

Personally, if this was my engine, I would put the original temp sender in my lathe, drill the sender out to fit the new sender. Tap it, seal it, and use the old one as a bush for the new one.

Turboman · Jan 12, 2019

mick 1986 said:
If you have a lathe, and the knowledge to use it, why ask the question in the first place?

Personally, if this was my engine, I would put the original temp sender in my lathe, drill the sender out to fit the new sender. Tap it, seal it, and use the old one as a bush for the new one.

He hasn't got the right sender, he needs the right one, and probably a gauge to match. Not certain about the gauge, but often the gauge and the sender only work with the correct pairing.

Also, tapping a piece of 40 year old alloy may not prove straightforward.

flat · Jan 12, 2019

I think the senders and guages are matched - so a disco sender won’t work with a defender gauge etc

High turbo is defender spec, although if you look up my engine number it comes back as a disco but that’s only applicable to the block in my case - the rest is defender spec.

Could be that your block is from a RR or disco and all the ancillaries are defender - what’s your front timing case look like?

The durite gauges come with a variety of adapter IIRC from when I fitted mine

Turboman · Jan 12, 2019

flat said:
I think the senders a guages are matched - so a disco sender won’t work with a defender gauge etc

High turbo is defender spec, although if you look up my engine number it comes back as a disco but that’s only applicable to the block in my case - the rest is defender spec.

Could be that your block is from a real or disco and all the ancillaries are defender - what’s your front timing case look like?

The durite gauges come with a variety of adapter IIRC from when I fitted mine

According to the list of engine number codes on the Glencoyne site, that engine comes from a Range Rover Classic, not a Discovery.

flat · Jan 12, 2019

Turboman said:
According to the list of engine number codes on the Glencoyne site, that engine comes from a Range Rover Classic, not a Discovery.

I thought they were a low mounted turbo aswell?

I might (am probably) wrong thoigh

payydg · Jan 12, 2019

Jowniofownio212 said:
Replace what with a mechanical one?

The thing what you was talking about

Turboman · Jan 12, 2019

flat said:
I thought they were a low mounted turbo aswell?

I might (am probably) wrong thoigh

Not got the foggiest. And in any case, the engine might have been in several vehicles over the last 40 years, and moving the turbo is a simple enough job.

flat · Jan 12, 2019

Turboman said:
Not got the foggiest. And in any case, the engine might have been in several vehicles over the last 40 years, and moving the turbo is a simple enough job.

Yep indeed, my 200tdi was rebuilt using a disco bare block for instance

Turboman · Jan 12, 2019

flat said:
Yep indeed, my 200tdi was rebuilt using a disco bare block for instance

After that length of time, they tend to be like Trigger's broom. And that is why I always try and use original parts where they are available, save on further complication by introducing aftermarket bits as well.

Temp sender for 200tdi

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