
Workshop Manual, TPD 1350, issue 3
73
13
New 1000 Series
To check the length of a
connecting rod
13-7
A partially finished small end bush, which can be fitted
to the original connecting rod and machined to obtain
the correct length grade is available
, see operation
13-10
. Specialist equipment and personnel with the
correct training are needed to machine the partially
finished small end bush.
Connecting rod kits are also available with the small
end bush fitted and machined to obtain the correct
connecting rod grade.
Cautions:
!
It is important that the piston does not contact the
cylinder head. Ensure that the piston height above
the cylinder block is correct.
!
Ensure that the connecting rods are fitted in the
correct cylinder. Record the position of the
connecting rod and its relevant cylinder when it is
removed from the engine.
To ensure that the piston height above the cylinder
block is correct, the engine may have up to six length
grades (F to L) of connecting rods fitted.
Identification of the length grade is by a letter or colour
which is marked on the side of each connecting rod
(A1). The letter F is the longest grade of connecting
rod and letter L is the shortest grade. The difference
between grades is 0,046 mm (0.0018 in).
If the grade letter or colour on the side of the
connecting rod cannot be seen the length can be
checked by the measurement of the dimension (x)
shown in (A). Before the length of the connecting rod
is measured, ensure that the bores of the big end and
the small end are square and parallel
, see operation
13-10
. The length is checked with the big end bearing
removed and the original small end bush fitted. The
dimensions for each grade are listed in the table
below:
Grade
letter
Colour code
Length
(mm)
F
Red
165,728/165,761
G
Orange
165,682/165,715
H
White
165,637/165,670
J
Green
165,591/165,624
K
Purple
165,545/165,578
L
Blue
165,499/165,532
A
G0009
1
X
Purchased from www.WorkshopManuals.co.uk
Содержание New 1000 Series
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