Mercury 305 CID - Page 200

3A-8 - ENGINES 90-823225--1 1096
5.0L / 305 CID / 5.7L / 350 CID Engine Specifications (Does Not Include Gen +)
Unit Of Measurement
In. (mm)
CRANKSHAFT
ENGINE 5.0L / 305 CID / 5.7L / 350 CID
Main
Journal
Diameter No.1 2.4484-2.4493 (62.198-62.212)
Mi
Diameter
No. 2, 3 2.4481-2.4490 (62.181-62.204)
Mi
Diameter
No.4 2.4479-2.4488 (62.176-62.199)
Main
Taper
Production .0002 (0.005) Max
Journal
Taper
Service .001 (0.02) Max
Out of Round
Production .0002 (0.005) Max
Out
of
Round
Service .001 (0.005) Max
Mi B i
Pd i
No.1 .0008-.0020 (0.020-0.050)
Mi B i
Production No. 2, 3 .0011-.0023 (0.027-0.058)
Main Bearing
C
No.4 .0017-.0032 (0.043-0.081)
g
Clearance
Si
No.1 .0010-.0015 (0.025-0.038)
Service No. 2, 3 .0010-.0025 (0.03-0.06)
No.4 .0025-.0035 (0.07-0.08)
Crankshaft End Play .002-.006 (0.05-0.15)
CiRd
Diameter 2.0988-2.0998 (57.117–57.142)
Connecting Rod
Taper
Production .0005 (0.021) Max
C
onnect
i
ng
R
o
d
Journal
Taper
Service .001 (0.02) Max
Journal
Out of Round
Production .0005 (0.021) Max
Out
of
Round
Service .001 (0.02) Max
Rod Bearing Clearance
Production .0013-.0035 (0.033-0.088)
Rod
Bearing
Clearance
Service .003 (0.07) Max
Rod Side Clearance .006-.014 (0.15-0.35)
Crankshaft Runout .0015 (0.0381) Max