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Discussion Starter #1
Hi all,

My 1.9 JTD is running at about 70 degrees after 25mins of city commute driving, so i'm guessing the thermostat could be on its way out.

I've had a quote for £120 to replace it, which seems high to me! Can anyone reassure me this is high, or am I just out of touch?

I'm in Nottingham. Any Notts based Alfa-friendly garage recommendations are appreciated :)
 

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Doesn't sound bad to me if it's a decent thermostat which, on its own, would be well over half the cost of your quote.

All the best

Pub
 

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Good price. The part is £80 and it definitely takes an hour. Drain and flush the system while you're at it. It makes the job easier so the labour will be the same.
 

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The only warning I will give is DO NOT let them fit a Circoli thermostat - these are supplied by a lot of the suppliers to the trade. There are a few reports of these failing catastrophically and my son's car was one of those. I fitted the thermostat and it completely separated at the joint due to a manufacturing defects the very next day. There are other reports of similar failures.

I have never had a problem with Calorstat / Vernet so can recommend that make.

See this post for how the thermostat failed with pictures.

http://www.alfaowner.com/Forum/alfa...657-circoli-thermostat-junk-i-warned-you.html
 

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Do you have the egr blanked off? .....i believe this can make the engine run a bit cooler at a maintained speed.

I saw some graphs on here, where somebody tested the temps, with and without it blanked.


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Discussion Starter #6
Thanks all, sounds like I'm just a bit out of touch with the cost of garages these days.

Thanks for the tip on the Circoli too. I was assuming it would be a quality part, as I'm going to a specialist, but I'll make sure I check before they do the work.

I haven't blacked the egr myself, but I'm not the first owner. Is there a straight forward way for me to tell? - I'm no mechanic, but not put off learning to do minor
work myself.
 

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Is there a straight forward way for me to tell? - I'm no mechanic, but not put off learning to do minor
work myself.
No, need to remove, or at least loosen, the EGR to check. Although I struggling to think why this should affect running temp, I can see how it might get the engine up to temp a little quicker...warmer air going into the inlet manifold.

All the best

Pub
 

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I haven't blacked the egr myself, but I'm not the first owner. Is there a straight forward way for me to tell? - I'm no mechanic, but not put off learning to do minor
work myself.

You can see a thin metal plate sandwiched between the connecting points of the egr. There can be 2 points - one is diamond shaped where the pipe connects to the bottom of the egr and the other is rectangular, where it connects at the other side of the egr.

Usually the plate is about 2mm thick.
 

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No, need to remove, or at least loosen, the EGR to check. Although I struggling to think why this should affect running temp, I can see how it might get the engine up to temp a little quicker...warmer air going into the inlet manifold.

All the best

Pub
With a blanked EGR these is no flow through the EGR/coolant heat exchanger (mounted next to the thermostat at the gearbox end of the engine).
 
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