...leads to another. What started out as a smoking rear cylinder and just a broken ring repair has turned into a total rebuild. Check both pics of the pistons, notice the top one is missing the cross brace inside it that the second one has. Also notice all the chipping on the undersides of both pistons. It looks like the cross brace broke off and fell into the crankcase. The flywheels probably shot the random pieces of the brace up into the bottom of the pistons from time to time badly chipping them. So now it's out with the cases so they can be split to look for more damage. The rear cylinder also took a beating due to the piston losing it's cross brace, it's actually funnel shaped (20 over at the base 40 over at the top) as is the top of the cylinder which explains the smoking rear cylinder. Fun stuff. Thanks to Greasy Dave for the spare set of hands and the giant brain this afternoon. Happy New Year.
6 comments:
oh boyyyy.
If your cylinder is junk, I've got very low bore originals. Flathead power baby!!!! I'm putting together my Paul friebus motor right now!
Small price to pay for riding such a cool bike! I feel your pain, I'm in the middle of a complete overhaul on Caroline.
Good point. Already ordering the parts...
Who made those pistons? Wants make sure I don't use them! Louie
holy smokes!
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