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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Crank seals and head gaskets
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[QUOTE="shueman, post: 713728, member: 49906"] 88 KX250 My bike started blowing anti freeze out the over flow. Removing the head revealed a leaking head gasket. The bike had been sleeved and the sleeve was actually taller than the rest of the cylinder. I did a poor man's surfacing job. I glued 600 grit paper to a stack of three 1/4" pieces of glass and wet sanded the cylinder and head until there was a consistent pattern. The head and cylinder are now straight but the piston at TDC just touches the head without a head gasket. What kind of clearance should I have between the piston and head? Should I increase the dome of the head or chamfer the piston? My crank seals also started leaking so I'm replacing them. Anyone have some tips on how to install the crank and bearings without throwing the crank out of alignment? I have a press. [/QUOTE]
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Forums
MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Crank seals and head gaskets
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