This Galaxy is suffering from lack of boost caused by an audible leak. This can be heard on the road. The problem is I cannot get it to make enough boost in the workshop to trace it. I have loaded the engine a few times and would hear it in the inlet area, but the clutch does not like this too much.
It looks like I may have to strip this awkward to get at inlet unless someone has been here before and can tell me of a common failure.