Section 05
ENGINE (4-TEC)
Subsection 08
(CYLINDER HEAD AND VALVES)
SMR2003-020_05_08A.FM
05-08-17
A. Valve Seat Outer Diameter INTAKE
– Using a 55° stone for the intake and an 80°
stone for the exhaust valve, reduce the valve
seat contact width to the appropriate value
mentioned above.
– Finally, coat the valve head sealing seating sur-
face with a fine paste of valve grinding com-
pound using a manual valve grinding mandrel.
Lightly grind the valves until a smooth, even,
uniform sealing surface of the appropriate in-
side and outside diameter is obtained on both
the valve and the seat. Use only a hand held
valve grinding mandrel with a suction cup, rotat-
ing the valve back and forth through about 45°,
and then advancing the valve 45° before repeat-
ing this operation.
Installation
For installation, reverse the removal procedure.
Pay attention to the following details.
Install valve stem seal
no. 28
.
1. Valve stem seal
Apply engine oil on valve stem and install it.
CAUTION:
Be careful when valve stem is passed
through sealing lips of valve stem seal.
1. Sealing lips of valve stem seal
To ease installation of cotters, apply oil or grease
on them so that they remain in place while releas-
ing the spring.
After spring is installed, ensure it is properly locked
by tapping on valve stem end with a soft hammer
so that valve opens and closes a few times.
CAUTION:
An improperly locked valve spring will
cause engine damage.
VALVE SEAT OUTER DIAMETER mm (in)
Intake
37.35 mm (1.4705 in)
Exhaust
30.3 mm (1.1929 in)
R1503motr260A
A
INTAKE
55°
45°
55°
45°
35°
35°
1
R1503motr254A
R1503motr254B
1
www.SeaDooManuals.net
Summary of Contents for 2003 GTI LE RFI
Page 1: ...www SeaDooManuals net ...
Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
Page 779: ...www SeaDooManuals net ...