I have a mot coming up rapidly….but have a leak in my exhaust manifold. I’m looking for a temporary fix, although the longer lasting the better - it’s a big job to remove the supercharger so I can get to the exhaust manifold to remove that! (It’s an MGB lump so exhaust and inlet on the same side!)

I can see 2 products that should do the trick - JB Weld Exhaustweld repair wrap and liquid moly exhaust bandage (although the German Auspuffbandage is childishly amusing!)

The JB weld is an impregnated wrap, the liquid moly is a bandage that you then apply bonding agent to.

Has anyone any experience of either, of have an alternate suggestion? Typically the leak seems to be on the block side of the number 4 down pipe so a pig to get to!!!!