Td5 water temp gauge

[taurion]

I would like to add a proper water temperature gauge to my D2.

My initial idea is to fit a tee to the  existing sender on the cylinder head outlet.

What have other people done ? Is there somewhere else that may be better or easier?

[reb78]

Theres an insert with sender you can put into the top hose. Have a search, they are available to buy I think. Or, some folks drill and tap the top hose connection and add a sensor there. 

Edited September 20, 2021 by reb78

[reb78]

This shows you both options https://goreproducts.com/products/td5-coolant-housing (looks like a nicely made product but expensive!)

[Maverik]

9 hours ago, reb78 said:

This shows you both options https://goreproducts.com/products/td5-coolant-housing (looks like a nicely made product but expensive!)

Good find, very tidy, and not that expensive for what it actually is really.

[paime]

Do you have to wire gauges/sensors like water temp/EGT etc via relays or would a simple fused 12v supply suffice?

[Maverik]

22 minutes ago, paime said:

Do you have to wire gauges/sensors like water temp/EGT etc via relays or would a simple fused 12v supply suffice?

The current needed in most gauges are small so you can happily use fused supplies - you only need relayed systems to avoid high currents being used in switches for example headlamps.

[Anderzander]

Is there not a way to wire the Td5 gauge to read from a normal sender instead of the ECU? Isn’t that what was done on the 300tdi ROW spec vehicles?

[Maverik]

Have a read of this - I installed a TD5 instrument pack in my 200tdi a few years ago, I then "upgraded" my temp measurement to a Madman EMS.

Installing a Defender Td5 Instrument Pack into a 200Tdi/300Tdi - Land Rover Technical Blog (retroanaconda.com)

From memory the Td5 Temp gauge is stand alone - you just need the right sender 300tdi type.

[western]

My 200tdi VDO coolant gauge is wired direct from the sender, a VDO gauge & matching sender might be the best way to go, then it's independent of the ecu driven standard gauge. 

[reb78]

This is what I would do too Ralph. The ecu needs the temp signal in the td5. I think the feed to the gauge comes after the ecu but the gauge wont be calibrated to another sender as i think its the ecu that tells the needle what to do. 
 

Easiest to fit another sender and gauge (one that reads in degrees) complete. The stock gauge only moves when its too late anyway the way its currently controlled. 

Edited September 22, 2021 by reb78

[Simon_CSK]

This is probably not the right location however on my D2 I put the sensor on the bottom radiator hose. It saved me cooking the engine more time than I care to remember. When the temperature started to rise above a certain level you knew you were in trouble and switched off the engine.

[taurion]

Thank you for the suggestions. I want to fit  a stand alone gauge so that I can follow the engine temp closely since there are plenty of hills around here and  I tow regularly.  My 'copilot' had the nanocom plugged in on one journey to follow the real temperature, on the level 78-80°C then uphill climbing up to 96°C and the 'idiot ' gauge had hardly moved.

The Gore Products replacement looks to be the answer . Not cheap especially when everyone has added their share to get it this side of the water, only consolation...cheaper than a cooked engine.

[western]

The VDO gauge I have is in degrees C, got it from www.defendet.com in USA you will need a matching sender as well. 

[Simon_CSK]

I bought a cheap Chinese one from Ebay and mounted the guage in the Dash where the ash tray was. Did the job for less than £10