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Posted by Chriscase [76.212.212.121] on Tuesday, November 09, 2010 at 01:55:48 :
In Reply to: Not the greatest weekend for vintage racing posted by Jonas [156.74.250.7] on Monday, November 08, 2010 at 21:36:02 :
And too much oil can seize one too, since the oil displaces gasoline thereby making things lean.
But may be it seized from the cold, shrinking the cylinder against a hot, expanded piston?
I have disassembled some, sand the aluminum out of the cylinder, free up or replace the ring, sand the skuffs off piston a bit, and back to the track. The rings are often stuck into the grooves by melted piston. If the old ring breaks, use the broken part as a scraper to clean up the groove. New pistons might be available from Wiesco?
My 71' DT1 MX was out to 11th oversize when I fell off crossing a stream. End of that motor, they don't like rusting up internally. I couldn't drain it because I was recovering from neurosurgery to repair the severed carpal tunnel nerve in my hand, from landing on broken glass. Hand has been numb ever since, 35 years.
Those were the days, waking up under the bike, after the dust has cleared. Arm skin stuck to the chamber, leaving a burn scar. Compound fractures where the bone was exposed by gravel pecking at my shin bones above the combat boots. Ruined a lot of pairs of Levis back then.
I was going to write a poem once, around the phrase:
"you'll be good as new
in a week or two"
I heard it too many times from E.R. doctors. ;)
It's not how many breaths you take that matters. What matters is how many times you have been breathless.
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