Hi I have recently purchased a 2000 (V) astra van 1.7 dti and all is ok apart from a slight oil leak. To be honest its more anoying than critical but I did wonder if it is something I can have a go at myself (with help from this forum of course). I think the leak is coming from the (and I don't know the proper name but here goes) rocker cover ! ie the bit on the top of the engine near the glow plugs !. I presume there is a gasket of some description there and I was wondering if it is the type of job I may be able to tackle myself. Any advice is greatley appreciated. Thank you