So... long story short my pal Chundy and I are having our heads examined. That is to say, our cylinder heads ('77 750K and '76 550F respectively) are being worked over by a local machine shop that does a lot of car and boat work.
Anywho, we first dropped off the 750 head. He quickly popped off cylinder #4's intake and exhaust valves, and noted some play in the exhaust guide. The intake was fine. He checked the stem diameters, and everything was fine.
To correct the exhaust guide play, he's installing (in all four guides) bronze valve guide liners taking them back down to original spec. Apparantly these wear much better and dissipate heat better than the original material. Not necessary on the intakes given the much cooler operation.
Anyone have this done before? My head is there now for the same treatment. He's doing that, along with replacing the stem seals and reseating and lapping the valves. All for the grand sum of CAD$150 or so. Sounded like a great deal, which is why mine is in there too. We dropped them off on Wednesday, and are getting both back on Friday
Just looking for some feedback on the work being done and the price being paid. If it turns out well, and is as good a deal as it seems, perhaps Chundy will let the Toronto area folk on the board in on the secret location (he found them). They also do aluminum welding which can come in handy.