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  #11  
Old 20th-September-2010, 19:58
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Default Re: Landrover Freelander Thermostat Problems

We haven't trialled it that way but yes we understand it would as the stat doesn't appear to open at all. Tried Q/Hazel and genuine landrover stat.
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  #12  
Old 20th-September-2010, 20:08
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Default Re: Landrover Freelander Thermostat Problems

Well i would try bleeding while running with the exp tank cap off allowing it to vent trapped air that way.

For the stat to open it relies on coolant flow through a bypass circuit, the IRD cooler and heater matrix. I still think your problem lies there if coolant is ejected before the stat opens, provided the head gasket and cylinder liners have previously been ruled out.
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  #13  
Old 20th-September-2010, 20:17
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Default Re: Landrover Freelander Thermostat Problems

Just checked with my Dad and the other mechanic and apparently that has been done and it's been bled and bled and bled . . . it's a nightmare.

Really want to keep the car and get it running right but everything is a mystery and I am being advised to get rid as we can't find solutions but I really want to keep it.

Thanks again for your help and suggestions.
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  #14  
Old 20th-September-2010, 21:31
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Default Re: Landrover Freelander Thermostat Problems

can they try bypassing the ird cooler, and why don't they fit thermostat but drill around the outside so some coolant is always circulating, and one does have to question the waterpump in all this
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  #15  
Old 20th-September-2010, 23:38
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Default Re: Landrover Freelander Thermostat Problems

What stat have you in place at present, was the blanking ring fitted with the Pressure relief Thermostat (PRT)

A cooler bottom hose sounds fine to me, its the numerous hgf, has the head been over skimmed??? 0.2mm is the max.


What temperature does the temp guage sit at when warm?


PS block text is hard to read
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  #16  
Old 21st-September-2010, 17:19
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Default Re: Landrover Freelander Thermostat Problems

Quote:
Originally Posted by MandyLou29 View Post
Just checked with my Dad and the other mechanic and apparently that has been done and it's been bled and bled and bled . . . it's a nightmare.

Really want to keep the car and get it running right but everything is a mystery and I am being advised to get rid as we can't find solutions but I really want to keep it.

Thanks again for your help and suggestions.
If they are 100% certain that the system is completely purged of air and there are no restrictions to circulation then the stat will open due to contact with warm coolant. So that only leaves a problem with the replacement engine if the coolant is ejected before that happens. Recommend you having a sniffer test carried out for the presence of exhaust gasses in the cooling system to help the diagnosis.
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  #17  
Old 22nd-September-2010, 19:46
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Default Re: Landrover Freelander Thermostat Problems

Hi Freelance, thanks for your comments, I'll pass them on and see what they say.

Northern Irelander, I don't have any thermostat in at the minute I am running it without as the problems occur as soon as one goes in. When it's not fitted the temp gauge stays at about quarter mark going up to half max but when fitted it seems to stay at half all the time and when it's been really bad it flies up to the top and straight back down but as I said the engine has been replaced twice since then. The HG wasn't skimmed this time it's al brand new. I will ask the question about the blanking ring.

Chaser, thanks again for your comments, I will pass that last suggestion on.

Thanks all
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  #18  
Old 22nd-September-2010, 20:39
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Default Re: Landrover Freelander Thermostat Problems

You should always change the coolant pump when replacing a K Series engine or doing the head gasket.
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  #19  
Old 22nd-September-2010, 22:01
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Default Re: Landrover Freelander Thermostat Problems

The water pump was replaced when the engine was changed, it is brand new.
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  #20  
Old 22nd-September-2010, 22:57
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Default Re: Landrover Freelander Thermostat Problems

Quote:
Originally Posted by MandyLou29 View Post
Hi Freelance, thanks for your comments, I'll pass them on and see what they say.

Northern Irelander, I don't have any thermostat in at the minute I am running it without as the problems occur as soon as one goes in. When it's not fitted the temp gauge stays at about quarter mark going up to half max but when fitted it seems to stay at half all the time and when it's been really bad it flies up to the top and straight back down but as I said the engine has been replaced twice since then. The HG wasn't skimmed this time it's al brand new. I will ask the question about the blanking ring.

Chaser, thanks again for your comments, I will pass that last suggestion on.

Thanks all
When the stat is removed, the engine should over cool. It will warm up very slowly, but when you drive it and cool air starts to move over the radiator, the temp gauge plummets to the bottom.

There is a blockage or serious low flow in the coolant system, check the rad by running a hospipe from the top inlet and let it drain out the bottom. the water should easily run through to the lower outlet when the tap is on full!

The stat ring should be fitted when the PRT is installed, its basically an old stat with the centre part removed, you could easily make one out of an old stat.
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