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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
they're Torx. can't get a welder on to them, they're down a big hole in the head, needed about a 3" torx bit to get down to them. All the others came out ok, just the two between the cams are causing the headache
You could try drilling the centre of the bolt and using a suitably sized easy out in the hole, which should then unscrew the bolt. failing that drill the head off the bolt, remove the head then use a pipe wrench to remove the bolt from the block. hth
As said, they are plugged holes for sensors on other models. Looking at the zetec block im doing up at the minute someone had a good go at trying to remove them at some point
just reading your post again the bolts that hold the head down are only located under the cams 10 in total. are you talking about the ones in the valley where the spark plugs are? if so these are sealed in and are not head bolts.
bugger me, you're right. didn't think about it like that. assumed they were just bolts. it's my lad who's doing it. will go and have a look for myself i think