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I've used both a heavy hammer and an air hammer, both with a home made mandrel (tool to push on the guide, but not damage the guide bore).
Similar outcome using both.
MikeLast edited by Mike Van Veghten; 04-09-2016, 09:38 AM.
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An air hammer with the proper 5/16" mandrel is the preferred tool to remove and install Champion valve guides. It takes only a few seconds per guide.
FWIW, driving in new valve guides is only half the process. The act of driving will inevitably distort the top of the guide. The next step is to ream to final ID. That requires a precision reamer.
jack vinesPackardV8
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Originally posted by Conky View PostThanks guys.That's very helpful. I'm thinking that if I make a driving tool that has a portion that fits inside the guide I can avoid distortion. It would have a provision for extraction of course.
As far as extraction, make the tool long enough to drive old guides out the bottom. The 5/16" tool for air hammers is inexpensive, as is an air hammer. I drove old guides out and new guides in in less than five minutes.
jack vinesPackardV8
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Hi,I have the head off and wondered if there was a way to asses the valves ? I cleaned them up,from the top and sides,the don't wiggle in the guides ,don't look burnt or chipped ,I spun the engine with the nut in front and all of them seem to close fully and open ok ,anything else I can do? I didn't know if it was hard to get to the guides with the engine in place
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