If the housing is made of aluminium, normammy, you shouldn't need to replace
I'd rather buy a separate thermostat and the gaskets.
Second, you'll probably need to dismount the fan. Usually a 32 mm nut
Just put a spanner on the nut, protect around (obviously) with al old piece
of carpet and hit the spanner with a maller, the inertia will help you and
the nut would easily release .
But, check accurately the spanner dimension on your 528.
You will need also to replace a large amount of cooling fluid.
whatever you do, I would not drive it anymore until this is fixed.
This is wearing on your engine. Also might want to consider changing
the oil after it is fixed. (smell the dipstick, see if it smells like
Had the same problem. Make sure you replace the Thermostat, Thermostat
0-ring, Thermostat housing gasket. Also since you opened your cooling
system, make sure you work to get the air out. How do I know this..... Just
went through it yesterday! I had to take it a step further, and replace my
radiator since, I had a blow out.
in article email@example.com, RT at
firstname.lastname@example.org wrote on 2/23/06 1:01 AM:
Took it to my local garage today... The fixing inside the housing
which holds the thermostat had broken.
I now have a toasty warm car with a vertical needle!
I didn't realise just how cold it had been in there....
Thanks for all your comments and suggestions...
Now, onto my next 2 projects - parking sensors and angel eye
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a thermostat is made of five major parts:
- a big washer,
- a wax/copper cartridge with a plunger and a valve at the end,
- a bracket which maintain the cartridge centered onto the big washer
- a second bracket on the opposite side maintaining :
- a spring depressing the valve in closed position against the big washer.
I assume that one of the bracket, where it's crimped inside the big washer
was damaged or broken, letting either the valve opened or the cartridge
askew and the valve partially opened.
He was lucky that no part went into the radiator !
I didn't see any as well. I had one a little bit twisted on my Spitfire
(second hand) but possibly be due to a bad mounting.
I just pointed out the areas of potential fragility and the possible ways it
Should the cartridge be leaky, it would have been closed forever.
Of course I may be wrong.
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