lockie

my cosworth 2wd head is corroded/pitted where the thermostat housing buts up against it
im now using the 4wd thermostat housing on this so it only seals on an o-ring

my concern is this will leak, any ideas on a repair while the head is bolted on???

I was thinking of using a 2wd gasket but it doesn't have much of a mating surface on the 4wd stat housing?

haz87

A skim of chemical metal to fill in the pitting should work (as long as surfaces are mega clean beforehand).

Ultimately weld and skim will be required for a more permanent fix - but appreciate this isnt going to be do-able with the head in place.

lockie

exactly what I was thinking

Gazzonator

iTrader: (9)

Got this exact problem myself.

I've given my spare thermostat housing to my mate to fill in the recess where the o ring sits with weld and then skim it flat. Hopefully then I should be able to use a gasket.

stevieturbo

Plenty of sealers about for all sorts of things.

Stat housing on my Isuzu 1.7td just bolts up dry to the iron block. ie no gasket, just sealer and it's a pretty shitty surface !

I'm amazed it doesnt leak ( well it did eventually but just needed to clean and re-seal it )

Turbosystems

iTrader: (5)

Tiger seal just fixed the tumble dryer door handle with it, only problem you'll have is removing it at a later date

stevieturbo

Doubt tigerseal would be rated for engine temperatures though.

Plenty of Loctite sealants rated for high temperature and with good gap filling abilities.

http://www.loctite.co.uk/gasketing-9224.htm

ajamesc

Chemical metal will fill the pits just fine