Standard And Reject Dimensions - Generac Power Systems GTH760 Service Manual

SeCTIoN 14: SPeCIFICATIoNS
deSCrIPTIoN
Bore
Out of Round
Main Bearing (Mag End)
Cam Bearing
Valve Guide
Valve Stem
Valve Spring Free Length
Main Bearing (PTO End)
Cam Bearing
Crankpin
Magneto Journal
PTO Journal
Magneto Journal
PTO Journal
Lobes
Crankpin Bearing
Piston Pin Bearing
Diameter
Out of Round
Bore
Out of Round
End Gap – Top & Center
End Gap – Oil
Ring Side Clearance – Top & Center
Ring Side Clearance – Oil

STANdArd ANd rejeCT dIMeNSIoNS

STANdArd dIMeNSIoN
CYLINDER:
90.00 – 90.025 mm (3.543" – 3.544")
38.044 – 38.099 mm (1.498" – 1.5")
20.00 – 20.03mm (.787" – .789")
CYLINDER HEAD:
7.005 – 7.020 mm (.2758" – .2764")
6.945 – 6.98 mm (.2734" – .2748")
38.0 – 36.5 mm (1.49" – 1.43")
CRANKCASE COVER:
42.044 – 42.099 mm (1.6553" – 1.6574")
18.0 – 18.025 mm (.7087" – .7096")
CRANKSHAFT:
38.99 – 39.01 mm (1.535" – 1.536")
38.00 – 38.012 mm (1.496" – 1.4965")
42.00 – 42.012 mm (1.6535" – 1.654")
CAMSHAFT:
19.959 – 19.98 mm (.7858" – .7866")
17.964 – 17.982 mm (.7072" – .708")
31.239 – 31.479 mm (1.2299" – 1.2393")
CONNECTING ROD:
39.06 – 39.07 mm (1.5378" – 1.5382")
20.02 – 20.03 mm (.7882" – .7886")
PISTON PIN:
19.984 – 19.995 mm (.7868" – .7872")
PISTON PIN BEARING (PISTON):
20.00 – 20.02 mm (.7874" – .7882")
PISTON RINGS:
0.25 – 0.5 mm (.0098" – .0197")
0.38 – 1.15 mm (.015" – .045")
0.04 – 0.09 mm (.0016" – .0035")
0.012 – 0.18 mm (.0005" – .007")
14-2
rejeCT dIMeNSIoN
90.10 mm (3.547")
0.035 mm (.0015")
38.25 mm (1.506")
20.06 mm (.790")
7.06 mm (0.278")
6.9 mm (0.272")
less than 36.5 mm (1.437")
42.25 mm (1.663")
18.06 mm (.711")
38.96 mm (1.534")
37.85 mm (1.490")
41.85 mm (1.648")
19.93 mm (.784")
17.93 mm (.705")
31.02 mm (1.221")
39.09 mm (1.539")
20.05 mm (.7894")
19.97 mm (.7862")
0.01 mm (.0005")
20.03 mm (.7886")
0.01 mm (.0005")
0.75 mm (.0295")
1.5 mm (.059")
0.10 mm (.004")
0.20 mm (.008")