low coolant alarm

Softly~Softly wrote: Really Ben, have you got a link I can look at

I just seem to see people raving about them, but never seem to see people saying how it saved their car

Thing is sofly sofly. I think everyone agrees that loss of coolant will blow your head gasket and seriously dent your wallet.
Now you could check your coolant level every morning. Who does? In any case its most unlikely that a leak will occur while the car is sitting in the garage. No, its when you are driving along on a journey that any number of faults could cause a leak and when it finally gets low enough the engine overheats, the rest is history.
I have arranged mine with a green coolant level ok indication and red if low.
As soon as I turn on the ignition the green light comes on. Very reassuring.
I installed the alarm about three years ago and the red light has come on once momentarily. The level had dropped a little and a small topup returned the light to stay green.
I love my little green light constantly monitoring the coolant level.

Hi Leigh,
Here is the most straightforward circuit which will work perfectly.
Timer is an AH3-3 available on Ebay.

That's Ace!

Wish I'd have waited a bit before buying the other tackle.

Float switch.

Timer on Ebay.

Superb!

Leigh Ping wrote: Superb!

Excellent. Simple and easy....

Shame I went out and got all the other gear but hey i've been waiting to get one installed for a while.

bensewell wrote:

Leigh Ping wrote: Superb!

Excellent. Simple and easy....

Shame I went out and got all the other gear but hey i've been waiting to get one installed for a while.

I have just fitted a B&G one on my F, cost £100 and easy to fit, i should have waited too

Can somebody explain why you need a delay timer with the float switch?
Also what else would I need. Basic instructions would help as well.
Thanks,
Forrester.

Softly~Softly wrote: Really Ben, have you got a link I can look at

I just seem to see people raving about them, but never seem to see people saying how it saved their car

Jan, I have the B&G alarm and it saved my engine about a month ago when the head gasket went. The alarm went off before the engine overheated. I will be installing another one in my new VVC this weekend.

Forrester wrote: Can somebody explain why you need a delay timer with the float switch?
Also what else would I need. Basic instructions would help as well.
Thanks,
Forrester.

The timer is to prevent false alarms eg going round a corner fast or going up a hill instructions are on here but I'll be doing one in next month so watch this space

Rich wrote: I have the B&G alarm and it saved my engine about a month ago when the head gasket went. The alarm went off before the engine overheated. I will be installing another one in my new VVC this weekend.

Silly questions Rich, as I know that you probably will anyhow, but could you snap a few pics of your installation when you do it please? Cheers

Also what else would I need. Basic instructions would help as well. Thanks, Forrester.

Low Coolant Alarm - Installation guide.

David wrote: I know that Russell will supply and fit these systems. If you don't feel confident, give him a try; MGRover solutions, in the glove box, under recommended.

:oops: Ooops David was asking which way up the float switch should be . Well actually they are both correct.
The float switch can be arranged either up or down depending on the circuit.
The diagram showing the float switch on its own is what I have used for my setup. That is with a simple home made electronic timer which I will post.
The float switch position shown together with the delay relay is correct . However my diagram is incorrect.



I would like to put before the court that I rushed this off for a fellow MGF owner who oddly enough reported everything worked perfectly??
I have attached the corrected diagram. A standard LED could be used to dispense with the green ok light if only red was required..
Does anyone know how to remove the incorrect diagram?