A while back, I posted about the chrome lining the bores on the 850T Guzzi (Chrome Bores 12/15/19) and how they tend to start flaking off over time. This, of course, is very bad for the engine, especially one with no real oil filter. Since the replacement cylinders were no longer available, the only real option is sending them out to the lower 48 to be rebored and either fitted with metal sleeves or plated with a nickel alloy (nikasil). So while pondering this, I figured I'd mostly ride the 650 Guzzi (v65). Well now I'm reading online about how the double springs on the v65 are apparently too strong for the valves and can stretch the stems until they fail, with catastrophic results. The fix is to replace the springs with later model ones, but the catch is they're only available from a few dealers in Europe and are very expensive. So what to do.
The over energetic valve springs are just barely visible below the round caps at the bottom of the head.
So one solution is to check the valve clearance fairly often. As long the measured gap is nearly the correct, the valves are probably OK. So I checked the gap the other day and three were spot on, the other one was .01 too large. That's pretty good, cause when the valves stretch, the gap decreases, so they're probably good to go, for a while at least.
Went for a short ride today and the bike ran great. Well it should, since I didn't change anything, but it's good to know it'll run like that for a while,
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