As the title says, what thermostat do you run? Mine's currently 82 deg, but want to know what's best round here so I can change it while it's all apart if need be.

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Cheers, Matt

Don't be fooled, Gruhms is not my real name.

74C + Nulon Ultra Cool mixed with distilled water + Redline Water Wetter.

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Slide
1965 Mini Van (1360)
1970 Mk2 Cooper S (1310)
1978 Rover SD1 V8 (4.6)
1996 Land Rover Discovery V8 (4.0)

82C. It runs cool enough in summer and keeps my tootsies warmer in winter than the 74C one did.
Coolant = 25% Nulon ethylenene glycol concentrate + 75% H2O.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I think 82 is the most common and probably considered the "standard" fitment. I would stick with that as a good starting point.

Before you refit it it would be worth testing it. Even new ones can be faulty.

Pop it in a pot of water on the stove and check it opens at the right temp and that it opens fully.

A good temp gauge for this is one of those you use when frothing milk.

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68 Morris Cooper S Mk1 (*ex 78 1275 LS 4th last built, 70 Morris 1500 OHC & 70 MiniMatic)

Hate it when I forget to do things like this Gets me worked up

Cant wait for summer to come round test the new rad, Have the aux setup ready by then if needed.

Remember overheating following doc around on one of the runs.

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PrOuDlY aSkInG qUeStIoNs FoR uR aMuEsMeNt