prt again sorry

[gary t]

hi again can any one tell me were i can get 82c opening prt from think its the grey ? i am haveing no luck so far.

[T-Cut]

This might help - if you believe it (cos I'm not sure what to believe): http://wiki.seloc.org/a/Pressure_Relief_Remote_Thermostat

TC

[DMGRS]

The ones I stock despite being cream are 82 degrees, to your door for under £20. :)
PRT - 82 (http://www.dmgrs.co.uk/collections/thermostats-and-waterpumps/products/prt-thermostat-rover-75-mg-zt-1-8-k-series-pem100990)

[stevesav]

The ones I stock despite being cream are 82 degrees, to your door for under £20. :)
PRT - 82 (http://www.dmgrs.co.uk/collections/thermostats-and-waterpumps/products/prt-thermostat-rover-75-mg-zt-1-8-k-series-pem100990)

I will back this statement up, I purchased one of Matt's pet a few weeks ago, she runs between 86-89 now:}.
Steve

[beinet1]

I will back this statement up, I purchased one of Matt's pet a few weeks ago, she runs between 86-89 now:}.
Steve

I have the grey one, ordere from a "duff" ebay seller two years ago. Temperature is the same as above :)

[T-Cut]

I have a black one and the engine runs at 87-90°C. I haven't yet observed the pressure control operating.

I changed to black as an experiment after having the buff PRT on the car from new. The buff one ran at 90-100°C, with a distinct relief valve opening point at 2000rpm. The data indicated an 88°C setting. There's no temperature marked on it that I am able to see. The relief valve opens easily with one finger pressure. According to Techwiki, it's got a 'medium' grade spring and 87°C setting.

What engine speeds are required to open relief valves with 'light', 'medium' or 'hard' springs isn't easy to find. I'd say 2,000 for 'medium' if the article is right. My black unit appears not to open under my typical engine rev range. I couldn't open it below 4000pm for sure. If it's above that, I'm unlikely to observe it. I did see an article suggesting that the black PRT relief spring is so hard, it won't open at all. I tend to agree.

From my experience so far, I preferred the buff version where I could observe the relief system operating. Neither black nor buff is the right one for the engine according to Seloc Techwiki. However, the Techwiki article was edited in recent times and gives data diametrically opposite to the earlier version. Hence my ambivalence about it.

Come the summer, I might slot a grey one in to see the effects. Techwiki reckons it's the correct one for the K16. We'll get it right sooner or later I guess.

How does a PRT work? This might be of interest: http://www.mgf.ultimatemg.com/group2/common_problems/hgf_pages/cooling_system_modifications.htm

TC