how to remove oil control valve as snapped off in head need to know how to remove, if there are any bolts holding it because dont want to damage the place where it sits in on engine, 7 seater petrol 2 litre 2005 plate trajet
Hi, welcome to Just answer! My name is Ross and i will help with your question
Is this the valve with the black cylindrical body and a two pin connector?
Right, there is just the one bolt holding this on, Where has it snapped off? is there any of the valve left protruding from the head?
no it has snapped off flush
That sounds about right! Ok so there is nothing left holding it in, there is a rubber o-ring on the body of the valve, these corrode around the o-ring making them difficult to remove, there is really two options depending on how badly seized in it is, first, you might be able to tap it gently until it twists using a small punch or screwdriver etc... it will usually start to turn and once its turned a bit you can gently prise it out with a pick or something similar. Otherwise if its well and truly stuck you will need to try to thread in a reverse thread bolt remover, this will thread in to the valve and allow you to pull it out using mole grips, you can clamp on it and pull it out.
it has definatley seized as tapped it and it just broke up
Ok you might be better off trying to use a bolt extractor, there should be a hole into the centre of the valve if its broken apart to thread it into, you may be able to twist the whole thing, otherwise pull it out using mole grips on and a pry bar, It might be a good idea if its that bad to soak some WD40 or ideally Plusgas, spray it on every half an hour or so for a few hours to give it time to really work its way in, it works wonders on these, in fact that alone is sometimes enough to get it going just by twisting and gently working it back and forth