Ok after my head gasket went last month my car has been running well! Last night I took it for a bit of a trip over to Cheshter go Karting and on the way the engine note changed! This morning I jacked the car up and found that my elise parts manifold has started cracking around one of the welds thats sits under the sump and also seem to have developed a big oil leak comig from somewhere its engine oil and not gearbox oil arrrr any ideas why my manifold has cracked? It had a cat replacment pipe which is a flexi one. The car also pop and bangs allot on the over run would this cause it?
Thanks for the reply I will check the cam cover bolts tommorow.
I have had someone look at the manifold and apparently its an old model manifold elise parts sold years ago and has been welded before but as its on an original weld it shouldn’t be a problem to weld again as the new manifolds have slip joints. Going to have my engine mounts check and maybe purchase a engine stabiliser.