which was leaking. Also once when I rolled in a chain, I was off a tooth or so, and I wanted to be directly on. I also wanted to do the chain guides.The water pump too. You know the labor involved wasnt that bad, maybe it was 5 hours more....I was really working carefully too, i thought i would never make a mistake this stupid (though i have before) . When I saw that bolt hidden underneath a dab of sludge, i was furious