[Mgs] Radiator Support Seal

[Paul Hunt]

There are two seals.  There is a relatively thin rubber strip that goes on 
top of the diaphragm and seals to the bonnet, there is also a foam strip 
consisting of two larger square sections glued together which seals between 
the radiator header tank and the diaphragm.

I ran for years with the rubber strip but not the foam, but found a 
noticeably lower engine temperature in hot weather after I fitted it.  In 
the latest edition of the MGOC magazine there is an article by a chap who 
has fitted a cold air feed to his carbs, fair enough, but as part of it he 
has removed virtually all the diaphragm!  He claims this gives him cooler 
intake manifold temperatures, but I dread to think what it has done for his 
engine cooling.  He's also losing an additional ram air effect if he had 
connected his cold air intake to the diaphragm.

PaulH.

----- Original Message ----- 

> I just ordered the seal that goes between the radiator support/diaphrma 
> and
> the hood/bonnet for my '73.  The one that I received is foam--are these
> supposed to be rubber or foam?