Guys,

The deal is $110 delivered.... only available to offroad80's users - please put your username in the comments section when you place your order.

I will put up a link where you can order them on-line tonight...

I will order some more into stock today....

>I guess as long as you know the facts and you stop whenever the gauge moves a milimerer above its normal >position then life is sweet. If you don't have a calibrated eye ball, or someone else often drives your car and >is oblivious to the other gauges other than the speedo then you probably want to install a quality elecric >water temp gauge in the truck. The gauge is cheaper then getting the head gasket replaced and a lot >cheaper then getting the head replaced.

OK so where would be the best place to put the gauge probe to catch the temp rise before it gets to the danger zone? And what would you consider to be the highest permissible temp before pulling over?
Thanks,
Alan.

I'm looking at the unit Frank is selling but I'm not yet sure where I'll put the probe. I had a situation in the past where the thermostat wasn't opening fully and the rad cap had failed open. This dumped a lot of my engine coolant overboard.

In this situation would it be better to have the probe at the thermostat housing or at the outlet to the radiator, which is more important, block temp or head temp.

Having written this I'm now leaning towards the head as that's the weakest part.

With respect to temp, I'd not want to see the gauge go past 110 deg C, especially if it's climbing quickly. At that temp I'd at least be pulling over and having a look to see if I was loosing coolant. It's true that some coolants can handle higher temps but can the rest of the cooling system and more importantly the head.

2.2 cents.

Thanks Frank, look forward to your report on that. Have seen some on e-bay, be interested to see/hear about the one you have. Also, if you take PayPal can you please provide your e-mail address so as I can pay that way.

Thanks again.

Okay Everyone, Today I got a deal with the manufacturers - an intro deal for offroad80's users for the first 5 units(he wouldn't do it for any more than 5 ) of $110 delivered anywhere in Australia inc GST.

One unit per person at this price.(I am not making any money)

You can order them from http://www.fullwavemarine.com/offroad80sspecials.html You can pay by Credit card via paypal or paypal direct.

After the first 5 are sold that I got a a very special price on, I will still be offering a special price to offroad80's users only of $118 delivered anywhere in Australia which is still the lowest price for these anywhere.

The stock will arrive in 48 hours to me and be shipped immediately.

From personal experience, I think this is one of the best safety gadget's we can install on our 80's given the apparently tempermental head gaskets and the fact that the factory temp guage has a dead spot that doesn't give you any warning until it's often too late....

Hi Pete,

As I mentioned before, I have my TM2 installed under one of the thermostat bolts - because I wanted to see what the temps were coming out of the radiator.

I also have a conventional water temp gauge installed in the top radiator hose(before I knew about TM2's) so I can compare both temps right now.

I am told by someone who has a temp gauge in their top hose as well as an OBDII scanner which tells him the temp at the factory sensor which is in the head that he says both of those gauges give him the exact same reading... which is interesting.

I can tell you that both of my gauges move fairly well in sync with each other with about 8 degrees C difference between them with the exception that the water temp gauge in the radiator hose doesn't seem to move much at all until that thermostat opens, so I would be installing your TM2 either under a thermostat bolt or on the head near the oil filter which is near the OEM sensor.

After all, it;s the head gaskets that go first usualy, so either thermostat or under a bolt already in the head would be my suggestion... it doesn't really matter where in the head in my opinion because it is all relative - if you see higher temps than usual - then you know there is a potential problem.... set the alarm to be a couple of degree's higher than you normaly see on the gauge so that it warns you if something abnormal is happening.

FYI I get 108 degrees C at the top radiator hose and 100 degrees C at the thermostat if I sit in DRIVE with the Air Conditioner ON and foot on the brake for 15 minutes after it is already at operating temp. I then get scared and move off to cool her down

When towing 2.5T of Boat on the freeway, I see up to 101 degree's C at the top radiator hose and 93 degrees C at the thermostat. My Auto temp gauge goes from it's usual 80 degrees C to over 92 degree's C when towing on the freeway.

If I use my torque converter lockup relay and lock up the Torque converter on the freeway whilest towing, my auto temp comes down to just above 82 degree's C and both engine temps come down by 5-6 degree's C

I have been advised by changing to Transmax Z in the auto transmission, This will further reduce the auto temp by a few more degreees - I would expect it would probabl only affect the engine temps by 1 or 2 degree's.

This shows me that our Petrol 80's don't leave much room for error in our cooling systems... which is why I truly think that these TM2's are a cheap investment in helping to give us some notice if a problem is on the horizon before it is too late and we do a head gasket or worse...

It would be nice if we all install the sensors in the same spot - then we can get some relative data on what they should be running at

Hi Alan,

The temp before pulling over really depends on where you install the sensor in my opinion. I would be installing the sensor - seeing what temps you get and setting the alarm about 2 degree's higher than the hottest it normaly gets where you installed the sensor.

In saying that, I would either install the sensor at the thermostat or under a bolt on the head itself. If wanting to get an accurate head temp, I would be utilsing one of the two bolts that secure the water outlet onto the cylinder head just next to the distributor. This has a torque setting of 15ft-lb or 21Nm if you have a torque wrench.

Agree with you Frank. I'll be looking for somewhere near the OEM temp sensor to install the TM2 sensor.

Just purchased my TM2. Thanks for the great deal mate, well done. Look forward to your report and pics of the tyre pressure monitor, very interested in that. If by chance you stumble upon a TM2 style oil pressure gauge I'd be very interested in one of these also.

Hi Pete,

No problems... I will receive the stock tomorrow and send it as soon as I get it...

I just want to test this type pressure monitor with my dual axel boat trailer's and make sure it works well with the transmitter's further away etc. I will report back as son as I am convinced it is a great product or not - at this stage - it is looking good.

I will keep an eye out for something like this for oil pressure...

Frank, just ordered the unit - have been looking for your web link the past few days and totally missed it DOH!!, thanks for a great deal, looking forward to getting it fitted and seeing whats what!

Cheers

Hi Chimpy - your timing was good - stock came in today and went out today - so yours is on it's way - only one more left right now at that price...

Wonder who will be quick enough to grab it

Hi Pete,

On the Tyre Pressure monitor - the one I am testing is branded Jette.

Jette 400B -4 kit is supplied as 1x Monitor and 4 sensors
(Incl. Car charger - mounting system - anti theft locks)

The thing I liked about it is that the tyre pressure sensors are mounted on the valve stems of the tyre - so you do not have to remove your tyres to install them.

They also have a locking device that needs a tiny allen key type device to get them off the valve stems.

Here is a picture of the unit in my car... It is that display next to my UHF microphone - it has a bright backlit screen when you touch a button - it is extremely easy to install as it is not "hard wired" as such. But I guess I should start another thread on this subject.

That looks like the system I was thinking of, I like it.

Keep us informed on your progress.

In saying that, I would either install the sensor at the thermostat or under a bolt on the head itself. If wanting to get an accurate head temp, I would be utilsing one of the two bolts that secure the water outlet onto the cylinder head just next to the distributor. This has a torque setting of 15ft-lb or 21Nm if you have a torque wrench.[/quote]

Thanks Frank, I have put it under the thermostat bolt and am recording about 80 to 83 c. Will do more driving around to gather more info. With the engine at idle there is a fair bit of air being pulled by the fan but when I raise RPM to 2000 or so the fan seems to slow and temp starts to rise. When let return to idle temp quickly drops back down. My fan clutch may be on the fritz.
Cheers, Alan.

Hi Alan,

Try this....

Get it up to operating temp, then put the air conditioner on flat out cold, put it in Drive with your foot on the brake at idle for 10 minutes.

If I do the above, it will climb to over 95 degree's...... and keep climbing if I don't take it out of gear or turn off the air conditioner.