Vehicle & Technical > Defender
200tdi heat problem
timberdog:
Right lads and lasses i have had no luck with fitting the 200TDI and now i have a heat problem this is what happens and what i have tried to sort it out.
When Engine is on tick over on Drive no issues when i take her up to constant 50ish she starts to creep up temp wise slow down and temp cools off.
Given that i have had convert 200TDI to 90 i have had to fit a TIM clock and Sender which has been proven by other people who i know to run at 88 to 90 Oc with no issues (Unless Faulty One just my luck if so).
Any way from comming back from run i have felt the hoses and the top Hose off rad is hot / Rad warm / Bottom hose norm temp the Thermostat housing red hot.
Header tank cold which makes me think circulation problem but i have done the follwing to sort or find out what the issue is:
Flushed all pipes (No blocks free flowing with Hose and back flushed and the saem free flow.
Changed Thermostat and also left top off thermostat and put hose in Header tank an their is flow out the top of the thermostat.
I have back flushed Heater matrix Hoses both ways
Flused put hose directley over block to Heater
Flushed Rad both ways
Bled all hoses
When i took Thermostat out it runs 40 to 60 Oc no issues and then i can see flow in the header Tank as you would.
It seems as if thier is a flow problem when Thermostat is in!!!
Their is no water in Oil no Bubbles in Header tank and Engine seems fine no noises or smoke and seems nice when Thermostat is out or even when Thermostat is in but on Tick over but roll down the road and it builds in Temp...
Xtremeteam:
you did put the thermostat in the right way up??
have you tried another thermostat?
unknownmanxman:
You could just leave the thermostat out and see what its like....
JD LWB:
What is your new temp gauge reading?
I had the same problem with mine. When i put the new temp gauge in, the rad still behaved the same (hot at top, cold at bottom, cold header tank etc), but the gauge reads between 88 and 91 and I can see the thermostat working (temp oscilates between 87 and 91 degrees), so the cooling system must be working properly.
I'll phone you tomorrow (Mon) and see if I can help. :D
timberdog:
I have changed Thermostate and no good !!
and yes right way up Wax down..
Carnt work this out runs too hot to drive and engine feels hot
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