Originally Posted by atavist' date='04 July 2010 - 09:30 AM
may be irrelavent but we used to make exhaust gaskets, head gaskets, and probaby would have made gaskets for about anything else for my old 302 boss mustang out of thin cardboard and lots of grease...
never had a problem... I'd do the same for my boat in a pinch without much reservation...
The problem with paper/grease gaskets that are going to be used between 2 faces that are not completely FLAT is leaks. A head gasket that fails could mean VERY expensive repairs.
Where a gasket is required between the engine block and exhaust/inlet manifolds - also between the exhaust elbow and heat exchanger. A substitute gasket should be made from a material that 1) can be compressed and 2) is heat proof.
A piece of new Copper sheet around 1.5mm (1/16th") thick coated with high temp grease. Torqued down so that the component is equally secure flat to the parent.
It is said that there is only one marine engine that can go without gaskets and that is the Gardner :- C L I C K