Mazda Miata MX-5 NA cooks…

…unfortunately no food, but from time to time its cooling water. I realized my dream of the MX-5 NA about 2 weeks ago, after having already looked at a few NA’s: 1994 Mazda Miata NA with 1.8 engine (as good as dry). Strangely enough, the FL model has not yet really come true… So has the big engine and a driver’s airbag, but no passenger airbag and not the rounded fittings. Except for a few broken light bulbs and cosmetic traces of the last 24 years, the M azda in my opinion (still the inexperienced apprentice who has driven an aquarium sample) in generally very good condition for his money. At least a few of his previous owners seem to have sheared around his condition. Motor does not clack, rust really keeps within limits, the seats have been restocked with the original fabric and the roof is in good condition. To get to the point: I noticed that after about 15Km drive with the engine switched off a noise in the engine room, near the right headlight from the driver’s point of view, to be heard. Sounds like he was cooking or eating badly and stomach growls… So a blubbing sound. That the coolant is exactly in this area worries me a little. The temperature indicator I have always been looking closely at since when driving, since this is supposed to be so conceived that the tolerance range to the right is not so tolerant. Apart from the warm-up phase, which in my eyes is very but he always keeps his temperature where he should have it. Until once, where the pump went, he has not crossed this area yet. So when I get out, I often hear this cooking; but never a fan. Is the efficiency of the fan so high that given if the cooling water starts to cook, if it doesn’t run? The cooler, by the way, gets unbraked driving wind, so the mouth of the Miata is free of numbering chi In my research, I have often encountered words such as balance tank, thermostat, cooler lid, etc.. Now I wonder if I should order a new thermostat for 25€ and install it myself, or if I should buy a new fan and install it myself, or if I should change the cooling liquid completely and pay attention to the correct mixing ratio. Or if I should do everything (all the money I like to do in the repair of the kl Since I have already cracked the 400 words and want to spare you the 500, I would just like to thank you for every answer!! Have a nice weekend! (Images can’t be added now)