SeaDoo SP Manual de Serviço descarregar pdf (Página 81)

Section 04 ENGINE

Sub-Section 04 (ROTARY VALVE)

04-04-2

GENERAL

The following verification procedures such as

clearance of rotary valve cover or rotary valve

shaft gear backlash can be performed without re-

moving engine from watercraft.

However engine must be removed from water-

craft to work on rotary valve shaft / components.

Refer to ENGINE 04-01 for engine removal proce-

dure.

Bottom end must be opened to remove rotary

valve shaft. Refer to ENGINE 04-03.

INSPECTION ON WATERCRAFT

Remove carburetor(s). Refer to FUEL SYSTEM

06-03.

NOTE : On the 587 engine, rotary valve cov-

er and carburetor are removed as an assem-

bly.

1,2, Rotary Valve Cover and Screw

Unscrew 4 retaining screws and withdraw rotary

valve cover and valve.

Rotary Valve / Cover Clearance

The clearance between the rotary valve and the

cover must be 0.30 ± 0.05 mm (.012 ± .002 in).

NOTE : If the clearance is below 0.25 mm

(.010 in) this could create an overheating sit-

uation and if the clearance is over 0.35 mm (.014

in) this could create a hard starting situation.

There is two methods to verify rotary valve / cover

clearance. One with a 45° feeler gauge, the other

one with a solder.

45° FEELER GAUGE METHOD

Remove O-ring from rotary valve cover.

Remove intake manifold from rotary valve cover

(except 787 engine).

Reinstall cover in place WITHOUT its O-ring and

torque screws to 20 N•m (15 lbf•ft).

Feeler gauge blade from 0.25 mm (.010 in) to 0.35

mm (.014 in) thickness should fit between rotary

valve and cover.

Insert feeler gauge blade through cover inlet ports

to verify clearance. At least verify clearance at two

different places in each port.

1. 45

feeler gauge

SOLDER METHOD

Remove O-ring from rotary valve cover.

Use the following type of solder :

– rosin core

– diameter : 0.8 mm (.032 in)

– electronic application (available at electronic

stores)

Install two short pieces (13 mm (1/2 in) long) of

solder directly on rotary valve, one above and one

below rotary valve gear. Apply grease to hold sol-

der in position.

Reinstall cover in place WITHOUT its O-ring and

torque screws to 20 N•m (15 lbf•ft).

Remove cover then clean and measure com-

pressed solder thickness, it must be within the

specified tolerance 0.30 ± 0.05 mm (.012 ± .002

in).

F01D53A

www.SeaDooManuals.net

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 315 316

Comentários a estes Manuais

Sem comentários

SeaDoo SP Manual de Serviço Página 81

Comentários a estes Manuais

Manuais e produtos relacionados com Motor SeaDoo SP