Quote:
Originally Posted by chrs1961815
So are the guides fine or should they be cut slightly on a lathe (if that is possible). I can mic them tomorrow.
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My instinct is that the guides are fine as-is. Additionally, I would say the bores of the block are within spec also. The guide bore diameter is supposed to be 0.5940"-0.5945 based on the factory print however you will need a decent quality inside micrometer (tri-mic) or a small hole gauge to be able to get an accurate measurement.
Yes, the guides can be machined as they are generally cast iron. I do this on other marque engines where guides are not available and they must be made. The issue is you really need to have a collet chuck for your lathe so that you can keep the TIR at a minimum. If your TIR is off when you cut them, the concentricity of the valve face to the seat will be off possibly requiring much more work to the seat.
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