15-12-2017, 03:56 PM
I assure you the bolts are 8mm. I am doing a change now. You need 10mm socket to undo aircleaner and a cross head screwdriver for aircleaner cover. On my 2l Diesel I am "Haynes 1B.4 page" bottom pic. Your best bet is to undo the 2 x 10mm bolts holding the air cleaner duct from outside and remove it totally and that will give unrestricted access to those 3 bolts. The bottom one may be a harder one to get to and also it gets a tad more weathering and it is shorter that the other two. They are not so bad to undo so I suggest forget allen key and use a proper 8mm socket. I am trying to get a bit more wriggle room to access the electrical connections that are exposed in a half conduit across the front of the engine. I am very circumspect about this because the loom is canvas wrapped and the material is not in good condition, but also plugs and connectors could be old and uncertain and the less you disturb the better. My car is 18 years old and I don't want to have to get another one in such amazing condition. 306s are vanishing fast and I am lucky to be part of you lot and have one.