MGF MG F Low Water Level Sensor Kit

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The Freelander coolant tank is a different design to the one in the MG so you would need to fit the MGs tank as well. Iirc the kit does come with a coolant tank though. Another alternative is to make your own so you can fit it to the Freelanders tank. Someone did this for their MG with good results. I will find the link and post up below.

One other alternative is to source the parts you need from a very late 1.8 petrol Freelander 1 as they had a low level warning fitted.
 
Thanks for you replies

I will look into the low level sensors ant let you know how I get on

Still would like to know of your opinion relating to over temp and where to put the sensors as I am looking into designing the item with a friend if people think it wold be useful.

Could it be connected to the coolant temperature sensor ?

The most important requirement would be where to place the sensors and if anyone has ideas on how to attatch them.

No point in using the Kenlow idea of a sensor on the top of rad as if you are losing water it wont work.

Regards
Fred
 
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Is the tank you are talking about?


http://cgi.ebay.co.uk/LAND-ROVER-FR...arts_Vehicles_CarParts_SM&hash=item3363928299

Where does the level sensor fit ?

Do you know of any owners fitting these devices to Freelanders ?

We are thinking of 1 unit sensing coolant level , over temperature and over temperature oil as a complete kit.

The list below is from RAV

Engine Coolant Temperature °C
Cold 40 (104)
Normal 75 - 115(167 - 239)
Hot (Red zone) 120 (248)

Are the reading in brackets in ohms?
 
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Not convinced by the high temp sensor, when temp rises fans should kick in straight away, should be noticable, even at motorway speed.

the low level alarm was designed for the MGF, as the engine is behind you, you dont normally see steam bellowing out behind you. I've seen TF's with over 2 litres of coolant lost, high temp, but no engine damage (10 litres in F/TF, 6 Litres in FL)

In the FL, I'd fit to the side of the tank, or rig something on the main downpipe from the tank
 
Thanks The Mad Hat Man

Advert for tank does not make it clear if sensor comes with tank, it only states cap is included.
 
Thanks NI

What we were thinking of was a three pronged approach, Low level coolant, High temperature coolant and high temp oil. All with visual and audio warnings.

Freelander has minimal coolant at the best of times hand book quotes 9.6 pints from empty.

Could the coolant sensor on the block be piggy backed with a circuit to sense over temp
by a digital audio circuit ?
 
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yu could always go for one of these - the propper thing...

PCF500060-EXPANSION-TANK-AND-SENSOR-UNIT.jpg


PCF500060 EXPANSION TANK AND SENSOR UNIT | Freelander 1996>: Engine: Cooling | shop | www.lrseries.com | L. R. Series

or read this.... http://www.landyzone.co.uk/lz/f57/losing-water-cracks-expansion-tank-110542.html
 
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might also be worth fitting an overtemp switch on a convenient coolant flow part.....

The coolant temp on the K series is normally pretty well controlled by the PRRT thermostat at 90c, prolonged idling on a hot will send the coolant temp up to 105c before the fan goes on to high speed and should bring the temp down pretty fast. Under radiator pressure the coolant will boil if the temp goes above 118 to 122c but coolant at a temp above 110c is too hot for my liking.

Peugeot have a similar system as a fail safe where an extra temperature switch bolted to the engine shorts the coolant temperature sensor to earth if the engine goes into overheat.

That won't work on a Rover system because the dashboard gauge and its built in overheat warning lamp (rover/MG) are driven by the MEMS ECU. The Rover MEMS ECU is programed to ignore any input from the coolant temperature sensor that it sees as false, as a result cars can still have the engine boiling but the temperature gauge planted on "N".

it is easy to fit a thermostatic switch for, say 95C, (RS-9700 NO Thermal Protector Temperature Control Switch | eBay UK or B1 METALLIC NO THERMOSTAT THERMAL SWITCH 90deg c QTY= 1 | eBay UK) on the head, using the small screws holding the coil bracket in place or somewhere that can monitor critical temperature.
 
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The Mad Hat Man said:
That won't work on a Rover system because the dashboard gauge and its built in overheat warning lamp are driven by the MEMS ECU. The Rover MEMS ECU is programed to ignore any input from the coolant temperature sensor that it sees as false, as a result cars can still have the engine boiling but the temperature gauge planted on "N".

.
Click to expand...

Err what temp warning light?

Early dizzy cap FL have a separate cooler sensor for ECU and coolant gauge sensor to the dash

Later coil pack type, have a single sensor, and a blanked part on the outlet elbow from where the other sensor was.
 
Thanks for your replies and sorry for the delay in my reply, I have been ill again.

I have read TMHM's write up on sensors you have fitted to other Land Rovers and would like to use this on my wifes Freelander and possibly my P38. I have also read Hippo's reply in the thread below

http://www.landyzone.co.uk/lz/f57/losing-water-cracks-expansion-tank-110542-2.html

But I have a few questions still before I order parts

1. When ordering the replacement chamber and tank what is the difference between the original tank and the replacement improved version ? As link supplied by TMHM
http://cgi.ebay.co.uk/LAND-ROVER-FR...rts_Vehicles_CarParts_SM&hash=item33639282992.

2.I see eBay have a number of different float switches similar to the one shown in Hippo's photo but have a max of 75 deg C is this enough and do you have any idea what the normal temperature in the tank obtains?

3. How has Hippo's system worked?

4. Did you fit a buzzer in the end ?

I will worry about the temperature sensors and where to place them once I have sorted this low coolant sensor as I firmly believe this is also essential.

Any comments on this ?

http://cgi.ebay.co.uk/Digital-Red-A...652?pt=LH_DefaultDomain_0&hash=item3a6600d89c


Regards Fred
 
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Someone's deleted me post? Bet it wur the rat boy. :mad:

I've fitted a sensor from rapid electronics as it's temp rating is higher. The ebay 75 degree type could melt and travel through yer water pipes. :eek:

http://www.rapidonline.com/sku/Elec...quid-level-sensor-fuel-and-oils/75150/61-1362

What's mine like? Well it worked when I tested it. I'm so confident in me v6 not over heating or leaking I've not wired it up properly. :D Been busy playing wiff me Hawkeye. Just tested the sensor to see it was ok. It does work. I'm not bothered about blip warnings orf road when bouncing about. Just proves the sensors working. MHM shows a timer circuit in his Q's and A's write up to take out the blips.

You have to get the sensor in the correct place so as to trip when the water drops, but not trip when the water level is ok. Sounds simple but the Freelander 1 reservoir is round and doesn't have flat sides. Hence the positioning of my sensor below is probably the best you'll get. Just make sure you take orf the burr edge on the inside and outside edges of the hole in the plastic, or your sensor joint won't be water proof. Also carry a nut/bolt/wasters and tap washers in the boot, just in case yer does up the sensor too tight and the ****er snaps. :eek:

My sensor has one side connected to body work earth. Other end goes via a longer wire through the bulk head existing hole, to an led, then an inline 100mA fuse, and connects to a fuse thats only powered when the ignition is switched on.



coolantsensor.jpg


DSCN1564a.jpg


JeUvSL0.jpg

levelsensor2 JeUvSL0

pYRTll1.jpg

levelsensorfix pYRTll1

fixx
 
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