arlurt
Unregistered
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Posted: July 10 2006,10:16 |
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From the horse's mouth...
When I bought it there was a mis-fire, later diagnosed as a piece of missing piston ring, part of the crown also missing, and a very battered head. I cleaned up the cylinder, had the head re-shaped and skimmed, fitted a new piston, rings, gudgeon pin and clips and it was as right as rain. It's done about 400 miles since the rebuild. It still had that odd vibration above 90 (on private roads), thought to be wheel balance.
It dropped on to one cylinder as we joined the M1, but it's done that before and cleared. As we approaced the M18 exit, it lost power, I dipped the clutch, and it was still running so I let it out again. It seized solid and locked the back wheel.
I pulled it apart last night. It's the re-built side that's failed. Not the piston, and not a broken ring, but the big end bearing. The cases are full of broken bits of roller cage and "metal flakes", well now we know what the vibration was. It has of course blown some of the bits through the transfer ports, and had a good go at the piston, bore and the power valve. My re-faced head will need doing again aswell.
So that's a winter job then.
Does this mean Warwick owes me a fiver...? I could do with the cas towards the cost of a crank re-build.
It was a good day though, apart from that.
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