Temp gauge u/s

[sparkymik]

Hi All
I been here before I know but lost the thread,I got my fuel guage working but my temp gauge still refuses to register any change in engine temp, I checked the two sensors under the driver seat and other than to confirm they are connected it's hard to say what else they are doing, other than taking up space, is there some other connection between these two components and the gauge in the dash?, we would like to take a trip in it but without a temp gauge it's not happening, thanks for any hints/help on this

MiK Spark

[maxheadroom]

My temperature gauge did not work when I had a drilled thermostat.
Do you have a thermostat fitted or could it be drilled like mine was?

or could it be there is one of the screws missing from the back of the gauge, I think there should be three in the temp gauge and the same in the fuel gauge. If you do have one missing I can let you have one.

[sparkymik]

Hi Max I'm not quite sure about the T'stat drilled or otherwise but the heating works as normal, nothing overheats engine wise so I assume yes it has one and it works, I had all the dash out a few times when hunting the fuel gauge fault so I'm up to speed with how that goes together, I'm wondering is there something else in the circuit, I heard tell about an "ecu" but I think this bus is older and it's not fitted, but thats only a guess, BTW cheers for the quick response

Sparky

[John the sparky]

the wires on the back of the gauge are really small and the posts can rotate and snap the wire (like overtightening the screws on a 3036 rewireable fuse (it says Sparky in your name )

can you have tightened the screws and snapped a wire or somehow caught the wire?


John

[mikeonb4c]

Tempting just to fit a temp gauge that is actually useful (like the Aussie TM2 kit) if you can't get it working. Its not much use for preventing disaster anyway whereas the TM2 will keep you posted and includes an adjustable alarm. Must save up my £ and get one myself

[The Great Pretender]

Tempting just to fit a temp gauge that is actually useful (like the Aussie TM2 kit) if you can't get it working. Its not much use for preventing disaster anyway whereas the TM2 will keep you posted and includes an adjustable alarm. Must save up my £ and get one myself

With you there, what is worse than a chocolate firegard?

Plenty of cheap digital temp gauges on e bay.

There is only 1 place to put the sensor, inside the top hose as it exits the head.

[mikeonb4c]

There is only 1 place to put the sensor, inside the top hose as it exits the head.

Is there a risk that in this position it will let you down if you experience coolant loss. I've read on here that this can be a problem with the standard gauge and sensor but I'm not an expert myself.

Also, I've not looked around t'internet, but do the cheap digital temp gauges have an alarm as I reckon that would be useful for those of us who are not natural gauge watchers.

Interesting topic (as ever!)

[sparkymik]

Hi All
yeah this is a hot potato I agree the gauge is rubbish even when working, I did Google for an Oz alarm £164-00 before it's even in the post but excellent piece of kit, so I agree there probable a good investment, where would ya mount it it won't go in the dash unit?.
So is it connected to anything between the sensors and the dash mounted gauge?, my original question, yeah the fillament connections are good and it all meters out ok, anybody know the values coming out of the sensors when cold and hot? and is one for water and one for cylinder head?

Sparky

Yep John it's my name no e no s

How about this http://www.fullwavemarine.com/store.html $149-00 + PP or THIS http://www.hiluxsurf.co.uk/forums/showt ... p?p=419389

Don't wish to kill this interesting thread but I just bought a TM2 from a guy in OZ for A$159-00

[The Great Pretender]

As I have said before, IMHO the outlet of the head is the hotest part of the cooling system that can be monitored, it is where my gauge reads from.

If you want an alarm something cobbled up with a 110c thermistor strapped to the outlet should work.

[sparkymik]

you want an alarm something cobbled up with a 110c thermistor strapped to the outlet should work.

Yeah TGP as I say in my edit I decided to to buy the TM2 the hours it's taken investigating and sittting here reading up posts, A$159 (Aussie $), bloody bargin, it would mor-n-likely end up in a garage costing, (like you said the standard fit gauge it pants) a fortune so money well spent, can't wait to get it on the bus, I wonder what normal temp is for a bongo engine?, never ending questions

Sparky MIk

[The Great Pretender]

Had a look at that Sparky MIk looks a good piece of kit.

AS for the temp, that question could start WW3.

[sparkymik]

Sooo, TGP in the blurb on the site it says connect it any where where you can get a temp reading, I favour the thermostat housing/cover this should pick up block and water in the top hose, assuming there is water in the top hose at the time the alarm is triggered when I fit it I will post results as for top temp of a Bongo, again follow the blurb as each may differ, I think run it and find out what this Bongo likes as it's top end, set the overtemp reading to trigger a few deg's over, this way it cover two bases, yep?

Sparky

[The Great Pretender]

Sooo, TGP in the blurb on the site it says connect it any where where you can get a temp reading, I favour the thermostat housing/cover this should pick up block and water in the top hose, assuming there is water in the top hose at the time the alarm is triggered when I fit it I will post results as for top temp of a Bongo, again follow the blurb as each may differ, I think run it and find out what this Bongo likes as it's top end, set the overtemp reading to trigger a few deg's over, this way it cover two bases, yep?

Sparky

The thermostat housing on the standard Bongo is on the inlet, bottom hose (cool side of engine).

[sparkymik]

well it was a question and it's been answered the TM2 comes with 4 mtrs of cabling so penty of scope for finale position in the engine area, any thoughts ? where can it go that will cover both water and cylinder head?, is there such a possibility? think I need a diagram of how the coolant flows


Sparky

[The Great Pretender]

well it was a question and it's been answered the TM2 comes with 4 mtrs of cabling so penty of scope for finale position in the engine area, any thoughts ? where can it go that will cover both water and cylinder head?, is there such a possibility? think I need a diagram of how the coolant flows


Sparky

If you fit it on the head put it as close as you can get to an exhaust valve as that is the hottest part of the head. Remember the water temp will be the first to pick up heat from the engine before it gets to the outside of the head.



The blue hose is on the outlet from the head, if you look at your engine you will find it connects to a stub exiting the head.
that is where I would install it.