Tecumseh AH520 - Oil Seal Service Details; Three Piece Seals and Outboard Seal Service

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SEAL
RETAINER
RETAINER SPRING
SEAL
RETAINER
RING
THREE PIECE SEALS. To remove seals, use a sharp
object such as an ice pick to pry out the retainer spring,
then remove the retainer and seal. In some cases it
may be necessary to remove the crankshaft to remove
the oil seals.
OUTBOARD SEAL SERVICE. Oil seals on the power-
take-off end of the crankshaft are installed in an inverted
(upside down) position to keep water out of engine.