running hot - help

[TDi90]

hi guys,
right rolly, my 200tdi 90 is running hot. last weekend i took the intercooler and the rad out, and flushed through (not the inside just the outside) from both directions... was a load of [PooPoo] in it as i suspected, once i had put it all together again, i of course topped up the fluid with BRAND NEW ANTIFREEZE and distilled water. 50/50 mix. after this, i ran her and was shocked to see the temp rise to exactly the same level. so this today, i went and got a brand new thermostat, and the bolt thing (where the crimped wire fits onto, you know the one?) and replaced the old ones. shocked to see it at the same level...

help please!!

Rob

[LCW11]

I had this prob. with my last Landrover.

Does the Landy overheat or is it just the Temp Gauge
showing its overheating.

Or have you not dared to try to see if it will over heat
I never did get to the bottom of it

I am wondering if its a elec problem as my only showed it
was over heating but never drove more that 10 miles or so
never realy pushed it

Lee

[TDi90]

well, i darent try and get her to overheat, but the guage is reading hot, the engine seems to be fine... and i know the thermostat is kicking in because i tried it today and it did its job.
its just puzzling...

Rob

[Guy90]

Have you got the right temperature sender thingy (the one that screws into the engine top). There are diffrent ones as there are diffrent thermostats.

[TDi90]

yeh, because she used to run right on the halfway... and would not budge...

[LCW11]

These seama to be exactly the same as what happened to mine
I too replaced all the bits you have
and like you say no change
see if you can pick up another Gauge

I bet it will not overheat...its electrical put money on it


Lee

[TDi90]

what kind of guage would i need?

[LCW11]

use you old sender and just rig the wires up to another
Gauge..go to a srappy and pull one out of any old motor


LEE

[TDi90]

so you think the guage has gone?
and surely i cant rip it out of ANY old motor? surely it has to be a diesel?

[LCW11]

It just a temp gauge will only cost you a few quid from a scappy
you can always take it back and say it doesnt work after

Dont want to shell out on a new Landy One and find
its not the gauge

http://cgi.ebay.co.uk/Land-Rover-Genuine-Temp-Gauge-Defender-TD5-Landrover_W0QQitemZ250060263682QQihZ015QQcategoryZ31348QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Lee

[drmike]

Just how hot is it running?

I believe that antifreeze isn't a very good coolant so that you're now using a liquid that won't cool as well as the weak solution that you had before.

Then again it won't make that much difference although I certainly saw a change in the normal temperature when I watered my antifreeze down.

Mike

[Cassillis]

o you have heat at the windscreen via the blower? If not it is airlocked. Try this first.  It may be the water that is reaching the thermostat is not hot enough due to the airlock.

Two things to try
Blower and heater on full and gently rev her to about 1500 see if this pulls it through
Secondly
Try topping her up from the thermostat housing instead of from the header tank with hot water so activating the wax pellet that sits in the thermostat causing it to open and allowing circulation.
Hope this helps

[LCW11]

Not sure we have established if its over heating or not
 :roll:

By bet still lies on a faulty gauge or electrics

LEE

[dreadnought110]

I also had this problem and mine was down to the gauge.... :?  :?

[TDi90]

overheating... well i dont think so but where do you draw the line??
i mean, there have been no effects on the engine, or the running of rolly, but, the guage reads between half, and the Red.

[LCW11]

Good luck..

LEE

[TDi90]

cheers bud, ill get another guage i think, and see if that does it!

[Muddy]

Just check your bottom hose if burns the crap outta your finger and or is similer ti the top one you've got a rad problem, if not then you can try elsewhere, how much water/freeze mix did she take?-could point to airlocks, take the thermostat out and feel you top hose before and after doing this if its hotter afterwards your stat is jammed, you need the correct gauge for you motor otherwise the reading will be completly wrong you must use one the same as what you have fitted now.

Ta Will.

[mudplugger01]

is it a genuine 200 tdi or a conversion....if a conversion they all run hot  very close to hot on gauge ..if genuine  change rad   best 85.00 you ever spend

[Muddy]

They dont all run hot you just need the correct sender in the head mine is a 200 conversion from a disco and it runs fine gauge sits at 1/4 to 1/3 max with fan on and 1/2 ish with it off unless i'm off roading.

[ian_s]

if the gauge rises to a certain point then sits there without moving, i'd say you havent got a problem. does the gauge actually reach the red at all?

have you fixed any electrical faults recently? just before this started, like a new battery or alternator? or fixed a faulty earth?

[JD LWB]

I had exactly the same problem on my One-Ten.

That turned out to be the gauge :D

Although, it was a conversion (defender engine into Td Landy)

[TDi90]

exactly the same ocnversion.... but it was converted a while back. before i got her. i have not had any problems before... she used to run at dead on center, but since about 2 weeks ago she rund dead on between the half and the red.

no she never goes up to the red, just sits at between half and red.

[muck_truck]

HI,

just joined the forum  :)

My 90 (200tdi) was doing the same after a coolant change (and water pump) and the bottom hose was not getting hot.  

One thing i did was change the water gauge for a tims gauge that reads actuall temperature not just a white section and a red section.  I got it off ebay for about 20 quid cause it was a electric one not capilary.

When i changed the sender unit quite a bit of air came out the housing before water did.  Fitted new sender and gauge and took it for a drive and temp gauge gets upto about 90 degrees and now the bottom hose gets red hot.

i think undoing the sender unit released a air lock that i had no other way of removing cause there is no bleed screws on the termostat housing.

The gauge was 50mm so fits in exact same place as old one.

try undoing the sender unit and letting a bit of air/water out of thermostat housing then put it back in.  Then take it for another drive see if it made any difference.

Cheers
Dan

[TDi90]

already changed the sender unit  

but cheers, and welcome  

[bombx3]

i pointed a temp meter at the engine ,pipes ,rad  infact every where,, took 2 to 3 mins so i new engine was running correct .It turn out to be a bad earth on temp guage .....get a lazer temp meter its amazing what you can check with out dismantling  or spending

[TDi90]

how much and from where?

[extreme90]

44 quid from snap-on man  and work from 50 meters away aswel  :lol:
but am sure draper or someone will do 1 cheaper  :roll:
rob what have you changed recently ?
if it was a dodgey earth or summat like, the temp guage surely would be fluctuating and not staying in a constant place, abit like my fuel guage  :roll:
go over a bump its all over the place  :roll:
danny

[bombx3]

my dodgy earth caused it to read hotter than it realy was (think its to do with resistance) but i was told it might be head gaskets ,water pumps ect so i panic .My local garage mate told me to get the temp reader 28pounds and i tested everything so quickly,you can follow water tempures as you start up and see thermostat opening ,and hot spots on your rad ect

[extreme90]

ive got one for 4 stoke outboard's (boat engine) cause ya cant test them see how hot they running with ya finger like the good old 2 stokes  :lol:
found that out the hard way  :roll:
its got to be something that he's done/disturbed recently
danny