jc5515 Posted January 29, 2018 Share Posted January 29, 2018 Good Evening All. I have been scratching my head about a couple of items recently and whilst I have done my best to research some results I thought I should ask the collective knowledge pool.I recently pulled the head from my Spitfire 1500 Engine which is actually a Dolomite engine but (as far as I know) is internally identical. The valves felt a little too wobbly in their guides so I have recently had new guides pressed in. Question 1 - On the inlet/exhaust face of the head there is a significant ridge which I can easily catch my fingernail on. It seems oddly large and straight as if it is a machining error or something? Is this something that I should try to eliminate but sanding it all down flat? Or even getting a shop to machine it smooth? I attach some pictures - although you can't really see the groove you can certainly see the line where it stands out (pointed via the pencil). I have another head kicking about (for a second engine I am rebuilding) and this doesn't appear on that head.Question 2 - the old valves in the new guides are still a little wobbly. Not a huge wobble, but definitely something I can feel what I pull the valve out slightly and wobble from the valve head. Is this something to be overly concerned about? I don't want to just throw money at a whole set of new valves just to find it is exactly the same. I have invested in micrometer and will be doing some checks on the sizes of the valves but just wanted to see peoples opinion on this.Any wisdom is always appreciated! Quote Link to comment Share on other sites More sharing options...
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