Hi terry paget, no I did remove the engine mount, took the heat sheild connected to it off first, to make a bit more space. I couldn't get the dipstick tube out so worked around it. Lost the Cranksensor bolt, but got replacement today from local Vauxhall. Put everything back together took it for a test drive, it seemed OK, all of a sudden the car shuddered slightly then eml came on(not the spanner light). Checked code cylinder 1 missfire, took the coil out to check everything. Couldn't see any oil in the wells, seen the gasket failure on the wifes 2ltr Omega and the oil in wells, so knew what to look for. When I went to put the coil back in it didn't seem to sit right, rocking when you pushed on the end that is plug 1, looked and couldn't see anything causing this so tightened down both Torx bolts not over tight, checked the coil and there was no rocking. Tried driving it again and now got missfire on both 1 and 2 cylinder. Before this all happened and just starting it first time after the work, it revved and sounded sweet. The previous owner had the missfire error code, so he changed the coil and plugs and said the problem went. It has only just raised its ugly head, so now thinking the coil is gone, or going. Have one on order, hope it gets here before 3rd Jan as the MOT runs out on the 3rd, so need to test drive before then. No Camshaft or Crankshaft error codes now, just this. I have had this car since this September and have had nothing but problems with it, there is a love hate relationship with it, but if this keeps on it will go to the big car park in the sky, which is a shame as engine has lots of work done on it, and has had an new cat and manifold recently.