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Old Feb 4, 2008 | 08:53 PM
  #19  
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MarkN
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Joined: Oct 2005
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If two of the followers were stuck then that is a sure sign that the cam is worn, although it is impossible to tell from those pictures alone - although there do seem to be some wear lines on some of the lobes.

When the cam starts to wear it mishapes the bottom of the follower, which "spreads" out. When you then try to remove the follower it scores the bore - which is what Tabetha was referring to. This is not good.

What you should to if you can't get a follower out is remove the cam with the stuck ones still largely in situ. Once the cam is out of the way you knock the stuck followers into the head and push them out the camshaft hole. Wrenching them out with pliers is a great way to wreck the bore so the new follwers don't fit as well as they should.

When a cam is badly worn it may or may not be noisy. I had one that was really badly worn - about 3mm of 4 of the lobes but it wasn't noisy. I replaced it because power was down so much - the engine wasn't revving past 5000rpm. I put a EFi CVH cam back in insead of the normal one - it makes a huge difference and seems to work really well with the T3.
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