Thread: Cooling system refurb - my alarm worked ;-)

Originally Posted by SteveFarmer

Hi,

(snip)

I am wondering is there is anything I have missed?

Steve

A full night's sleep?

One of the things that had just been done on mine (gems though) is a bypass of the air plenum preheater. Not needed in our climate. The tube from the header tank to the plenum was nearly through with an obvious scary result. Hence why its gone from 4 pipes to one - direct to the header tank without the air plenum being plumbed. A worthwhile upgrade that I wasn't aware of. Maybe everybody else out there is already. It's certainly recommend it.

Originally Posted by davidsonsm

One of the things that had just been done on mine (gems though) is a bypass of the air plenum preheater. Not needed in our climate. The tube from the header tank to the plenum was nearly through with an obvious scary result. Hence why its gone from 4 pipes to one - direct to the header tank without the air plenum being plumbed. A worthwhile upgrade that I wasn't aware of. Maybe everybody else out there is already. It's certainly recommend it.

Hi Mate

Mine is plumbed to my LPG evaporator, but I was looking at it the other day and wondering what state it is in. It's pretty hard to see it all, I might get a better look once all the other stuff is off.

Regards
Steve

A lesson to all here without a low coolant alarm. I too have had a warning which enabled me to stop without any signs of overheating. Again it was the water pump leaking.
I have just spent $4 on the parts for an alarm for the new ride, 2 flashing led`s and a float switch, I already have a spare relay in the tool box. Got to be the cheapest insurance ever.
The throttle body heater on the new car has already been bypassed however I shall remove the alternator to get the hose direct from the expansion tank to the inlet into the block and make it a much neater job.

Originally Posted by wayneg

A lesson to all here without a low coolant alarm. I too have had a warning which enabled me to stop without any signs of overheating. Again it was the water pump leaking.
I have just spent $4 on the parts for an alarm for the new ride, 2 flashing led`s and a float switch, I already have a spare relay in the tool box. Got to be the cheapest insurance ever.
The throttle body heater on the new car has already been bypassed however I shall remove the alternator to get the hose direct from the expansion tank to the inlet into the block and make it a much neater job.

I don't suppose you could post what you bought and how you intend to install the level sensor, and wire it up. Cheers. Sean.

Sean

If you want to take a few pics while you do it, I am happy to add them and a little text to my web page on low coolant alarms

Steve

I have posted about this countless times before but here goes again

Get a float of e-bay like this, should be $2 shipped


http://thumbs4.ebaystatic.com/d/l225...QyrL8S-CHg.jpg

Get a warning device, I get flashing LED`s get what suits you. ( these were $A$2.09 for a pair Yesterday )


http://thumbs.ebaystatic.com/m/mVh5N...rw5LPg/140.jpg

You will also need a 5 pin relay. A$2.57 today Shipped



Drill a hole in your expansion tank, Please make sure its as close as possible to the shank of the sender. Fit the sender in through the expansion cap orifice, wire up through the relay to your warning device. The float is on in the coolant full position and switched off when low on coolant. You need to keep the sender float as low as you can in the tank so you cant just turn it upward. the relay resolves this.

https://www.youtube.com/watch?v=2XHsm3x7mkY

Hi Wayne

I have lifted your pics and text and put them on a page here

P38 Range Rover Low Coolant Alarm Float Version

Regards
Steve