Cylinder/Piston Service Information; Cylinder/Piston Troubleshooting; Cylinder/Piston Specifications; Low Or Unstable Compression - Honda 86-87 TA200 FATCAT Service Manual

SERVICE INFORMATION
TROUBLESHOOTING
CYLINDER
SERVICE INFORMATION
GENERA L
7 -1
7 -1
7 -2
7. CYLINDER/PISTON
PISTON
PISTON /CY LINDER INSTALLATION
7 -3
7 -5
• All cylinder/piston maintenance and inspection can be serviced with the engine in the frame.
Reier to Section 5 for engine removal and installation.
SPECI FI CATIONS
ITEM
Cylinder I.D.
Taper
Out of round
Warpage across top
Piston ,
Piston 0.0.
piston pin,
Piston pin bore
piston rings
Piston pin 0.0.
Piston-to-pin clearance
Piston ring-to-ring
TOP
groove clearance
SECOND
Piston ring TOP/ SECOND
end gap
OIL
Cylinder-to ·piston clearance
Connecting rod small end 1.0.
Connecting rod -to-piston pin clearance
TROUBLESHOOTING
l ow or un stable compression
Worn cylinder or piston rings
• Faulty cvlinder head or valves (Section 6)
Excessive sm oke
STANDARD SERVICE LIMIT
65.000 - 65.010
mm
12.5590 - 25594
in)
65.10
mm
(2.563
in)
-~
0.10
mm
(0.004
in)
-~
0.10 mm (0.004 in)
-~
0.10
rnm
(0.004
in)
64.962 - 64 .982
mm
12.5576-2.5583 inl
64.90
mm
12.555
in)
15.002 -15.008
mm
(0.5906 - 0.5909
in) 15.04
mm
10.592
i~
14.994 - 15.000
mm
(0.5903 -0.5906
in]
14 .96
mm
(0. 589
in)
0.002 - 0.014
mm
(0.0001-0.0006
in)
0.02 mm (0.001 in)
0.005 - 0.045 mm (0.0002-0.00 18 in)
0.09 mm (0.004 in)
0.015-0.045 mm (0.0006 - 0.0018 in)
0.09 mm (0.004 in)
0.20 - 0.40 mm (0.008-0.016 in)
0.50 mmto.020 in)
0.20 - 0.80 mm (0.008 - 0.031 in)
-~
0.018-0.048 mm (0.0007 - 0.0019 in) 0.10 mm (0.004 in)
15.010-15.028 mm (0.5909 - 0.5917 in) 15.06 mm (0.593 in)
0.010 - 0.034 mm (0.0004-0.0013 in) 0.05 mm (0.002 in)
Overheat in g
Excessive carbon bUild-up on piston or combustion
chamber wall
Fuel·air mixture too lean (Section 4 )
Worn or damaged cylinder. piston. or piston rings
Improper installation of piston rings
Knocking or abn ormal n oise
Worn piston and cylinder
Damaged valve stem seal • Excessive carbon build-up
7-1