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alexatnd

Member Since: 19 May 2015
Location: Yorkshire
Posts: 287

How cold should your bottom radiator hose be ?

Hi all,
just replaced the radiator in my 2004 TD5 .

Bled system nothing seems to be leaking anywhere but ....

The heater does belt out a LOT of hot air .. like its uncomfortable if you have it on full pelt. This is compared to the other TD5 that is well luke warm at best!

If I hold the top radiator hose after a run yup its warm, if I grab one of the other hosts . that connects to the plastic thermostat housing that's hot as well. If I grab the bottom radiator hose its stone cold.

Obviously once I get hold of a screwdriver to remove the radiator top cover I'll check if its warm at all. Wouldn't have expected that sort of temp difference between top and bottom hose on a std Britpart radiator. Just wondering if I should have changed the thermostat as well,

A Santa - 1977 Series 3 - new chassis, tub, disc brakes,SU Carb
Gertie - 1999 110 TD5 - like a Phoenix from the ashes back on road... almost
Effie - 2004 110 TD5 County

23rd Oct 2018 1:29pm

miker

Member Since: 13 Sep 2015
Location: Surrey
Posts: 1777

My experience is the same, even with a new thermostat. I think it's a simple case of the engine not putting out enough heat to get the thermostat fully open in most scenarios.

I have watched temperature on my nanocom and seen it oscillate around 90 degrees quite happily.

Realistically, the coolant system is sized for driving fully laden with 3+ tonnes on the back, in 35+ degree heat. October in England without a load on? less so!

23rd Oct 2018 2:06pm

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