A little while ago I bought an 2010 F4 thats appeared in these forums before (the engine had an unfortunate event) and I'm in the process of fixing it back to be a going concern. I'm in the throws of repairing the damage and last thing I noted is the idler (or lower) cam chain sprocket is 'loose' (moves laterally and radially a lot too much). Have have torn the engine down to the point where I have taken the pin out that holds it in place but the sprocket simply does not want to come out.. Am I missing something as I have followed what the Engine manual said (as much as it does, not a great deal) and the Parts book shows nothing other than the sprocket and pin in place. Has anyone done this job before as it has me a little stumped, unless it has caused enough damage in the bore to restrict it coming out. Help would be greatly appreciated...
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