As stated in title, while attempting to fit our new exhaust manifold (C-AEG365) with our existing CAM6618 inlet manifold there is a clear issue with fitting. Whilst tightening the nut+washer down on the stud, the washer tightens down onto the inlet manifold side but is a clear 1mm clear of the exhaust manifold.
Tightening any further results in an angled washer and possible stud bending as shown below, still not securing the exhaust manifold:
Is this a defect with the manifold we purchased? Are there different thickness of the flanges on the exhaust/inlet?
As far as I can measure our old exhaust manifold was the same 7.5mm~ as the new one in thickness.
We're using the same studs+washers as before, just got the new nuts as ours were well past there time, as seen below for comparison:
Any help/advice would be greatly appreciated. Thanks in advance.