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Thermostat housing removal

So after a week of plus-gas soaking I finally manage to remove the housing without shearing any studs.

Attached picture is what I find, I suspect this housing has not been removed in quite some time 🙂

New housing/thermostat/gasket duly ordered and will be fitted this weekend !


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That looks a little worse for wear! Makes you wonder what the rest of the water jacket looks like :O

If you build it, they will come

I'd definitely give the whole system a reverse flush and also fit a set of stainless bolts to the housing so it can be removed again in the future.

If it ain't broken don't try to fix it as if you do it will definitely break

I always try and reverse flush B series engines from the drain on the block below the distributor. It is surprising the muck that comes out using this method.

I have found though that these drains are sometimes blocked and, in some cases, unblockable. Judicious poking with some coat hanger wire followed by attaching a hose pipe can usually do the trick but I have had a couple of engines where that just didn't work.


Yes it had dawned on me the rest of the system would be full of crud too.

Thanks for the reverse flush option though, I was just going to stick a hose pipe up the bottom hose 🙂