Gudgeon
Pin 4.108
Type
Outside
Dia.
of
Gudgeon
Pin
Length
of
Gudgeon Pin
Fit
in Piston Boss
Gudgeon
Pin 4.107 and 4.99
Type
Outside Dia.
of
Gudgeon
Pin
(Later
Engines)
Outside
Dia.
of
Gudgeon
Pin
(Earlier
Engines)
Fit
in Piston Boss
Small
End Bush 4.108
Type
Length
of
Small
End
Bush
Outside
Dia.
of
Small
End Bush
Inside
Dia.
before
Reaming
Inside
Dia.
after
Reaming
Clearance
between Small End Bush and Gudgeon Pin
Small
End Bush 4.107 and 4.99
Type
Length
of
Small End Bush
Outside Dia.
of
Small End Bush
on
later
4.99 and all 4.107 engines
Early 4.99
engines
Inside
Dia.
after
Reaming on
later
4.99
and
a/l 4.107 engines
Early 4.99 engines
Clearance
between Small End Bush and Gudgeon Pin
TECHNICAL
DATA-B.S
Fully Floating
1.0625/1.0627 in
(26,987/26,993
mm)
2,673/2,687 in
(67,894/68,250
mm)
Transition
Fully Floating
0.9375
in/0.9377
in
(23,812/23,817
mm)
0.875/0.8752 in
(22,225/22,23
mm)
Transition
Steel Backed, Lead
Bronze
Lined
0.935/0.955
in
(23,749/24,257
mm)
1.221/1.222
in
(31,013/31,039
mm)
1.0495/1.0545 in
(26,657/26,784
mm)
1.06315/1.0632
in
(27,004/27,005
mm)
0.00045/0.0007 in
(0,0114/0,0178
mm)
Steel Backed, Lead
Bronze
Lined
0.865/0.885
in
(22,00/22,48
mm)
1.06511.066 in
(27,05/27,08
mm)
1.0025/1.0035
in (25,46125,49 mm)
0.9382/0.93875
in
(23,83/23,84
mm)
0.8757/0.87625
in
(22,24/22,26
mm)
0.0005/0.00125
in (0,0110,03
mm)
Note. Bushes
to
be reamed
to
suit respective Gudgeon Pins, and are
provided
with
a reaming allowance.
nSI::ti§11n Rod 4.108
Type 'H'
Section
Cap
Location
to
Connecting
Rod
Big End Parent
Bore
Dia.
Small End Parent Bore Dia.
Length from Centre Line
of
Big End
to
Centre Line
of
Small End
Big End
Setscrew
Connecting
Rod End Float
Connecting
Rod 4.107 and 4.99
Type
Cap
Location
to
Connecting
Rod
Big End Parent Bore Dia.
Small End Parent Bore Dia.
on
later
4.99 and all 4.107 engines
Early 4.99
engines
Length from Centre Line
of
Big End to Centre Line
of
Small End
Big End Setscrew
Connecting
Rod End Float
on
later
4.99
and
all 4.107 engines
Early 4.99 engines
Serrations, Offset 45
to
the Horizontal
2.146/2.1465 in
(54,508/54,521 mm)
1.21875/1.21975 in (30,956/30,981
mm)
6.217/6.219
in
(157,912/157,963
mm)
0.375 in
(i
in)
U.N.F.
0.006510.0105 in
(0,165/0,267
mm)
'H'
Section
Serrations,
Offset
45'
to
the
Horizontal
2.
i
46/2.1465
in (54,508/54,521 mm)
1.0625/1.0635
in (26,99/27,01
mm)
1.00/1.001
in
(25,4/25,43mm)
6.405/6.407
in
(162,69/162,74
mm)
0.375 in
(i
in)
U.N.F.
0.0065/0.0105
in (0,1610,27
mm)
0.0075/0.0105
in
(0,19/0,27
mm)
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