Coupe 2.3 Back Pressure

[monkeybizniss]

Hi All,

New to the forum so hello to all! I've been reading through some threads and am hoping someone out there might be able to help.
I've just bought a 1991 5 pot Coupe 2.3 with 147K on the clock. The engine sounds generally sweet and goes like the clappers if you want it too, but I'm a bit worried about the cooling system back pressure build up I seem to get. After warming up, the large pipe feeding the water back into the engine is rock hard. I've had this off and checked for sludge and blockage but its clear. I'm worried about the damage i.e blowing a head gasket, that it might cause!
Can anyone help please?! I use to own a 2.0 8v but never had this problem!

Thanks all!

Mike