Oversize Parts - Generac Power Systems GN190H Service And Repair Manual

SECTION 1: GENERAL

OVERSIZE PARTS

GENERAL:
At the time this manual was published, oversize pistons,
rings, valves, etc., were not available. Worn or damaged
parts must be replaced.
OVERSIZE PISTONS AND RINGS:
Oversize pistons and rings are not available at this time. The
engine cylinder cannot be rebored to an oversize dimension.
If the cylinder is worn excessively or damaged, the crankcase
must be replaced. A standard size piston and rings can then
be used.
OVERSIZE VALVES:
Oversize valves are not available at this time. Valve guides
cannot be rebored to an oversize dimension. If valve guides
are worn or damaged, the cylinder head must be replaced.
Standard size valves can then be used. Valve guides cannot
be replaced.
NOTE: Always use original GENERAC® replacement
parts.
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