Linhai M565Li T3 EFI, Service Manual

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CHAPTER 3 ENGINE
M565Li T3 EFI SERVICE MANUAL 20.0
CHAPTER 3 ENGINE PAGE. 3- 48
1.
Valve Seat
2.
Exhaust Valve Contaminated
Area 3.Valve Face(Contact Surface to
Valve Seat)
Valve Face and Seat
●
Check valve face and seat for burning or
pitting and replace valve or cylinder head
if there are signs of damage.
●
Ensure to seat valves properly. Apply
some lapping compound to valve face and
work valve on its seat with a lapping tool
(see Valve Guide Procedure below).
●
Measure valve face contact width.
NOTE: The location of contact area
should be in center of valve seat.
●
Measure valve seat width using a caliper.
Valve Seat Contact Width
Exhaust Valve
NEW 1.20mm
～
1.40 mm
Service limit 1.80 mm
Intake Valve
New 1.10mm
～
1.30 mm
Service limit 1.70 mm
If valve seat contact width is too wide or has
dark spots, replace the cylinder head.