Section 04
ENGINE
Subsection 02
(LEAK TEST)
04-02-5
787 ENGINE
1. Pump with reducer and nipple
Activate pump and pressurize to 5 PSI (34 kPa).
Check plug of the rotary valve shaft in crankcase.
Remove PTO side spark plug. If pressure drops, it
indicates a defective PTO side crankshaft inner
seal.
Remove MAG side spark plug. If pressure drops,
it indicates a defective MAG side crankshaft inner
seal.
If the above mentioned components are not leak-
ing and there is a pressure drops, remove the ro-
tary valve cover. Check the seal of the rotary valve
shaft.
If the rotary valve shaft is not leaking, it could indi-
cates a defective engine casting. Disassemble en-
gine and carefully check for defects in castings.
Pay attention to tapped holes which may go
through sealed areas of engine and thus lead to
leakage.
F01B34A
1
Содержание SEA-DOO GS 5626 1998
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