Section 04
ENGINE
Subsection 02
(LEAK TEST)
04-02-6
SMR2002-021_04_02A.FM
787 RFI ENGINE
1. Oil return hose blocked with hose pincher
Install pump with reducer and nipple to the oil sup-
ply hose of the rotary valve shaft.
717 ENGINE
1. Pump with reducer and nipple
787 RFI ENGINE
1. Pump with reducer and nipple
Activate pump and pressurize to 34 kPa (5 PSI).
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
or crankcase is not sealed correctly.
Remove MAG side spark plug. If pressure drops, it
indicates a defective MAG side crankshaft inner
seal or crankcase is not sealed correctly.
If the above mentioned components are not leaking
and there is a pressure drops, remove the rotary
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.
F01B33A
1
F01B32A
1
F01B34A
1
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Содержание GTI 5558
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