WinGD X72 Maintenance Manual

Maintenance
0330−1/A1
Winterthur Gas & Diesel Ltd.
25/ 27
Fuel Pump
Group
Key No.
Description Measuring
direction
(method of
measuring)
Nominal
dimension
(normal, new)
[mm]
Maximum clearance,
dimension
(due to wear)
[mm]
5556 Fuel pump
Plunger (40, 42 and 44 mm)
1 Clearance (plunger / cylinder) A−B radial 0.035−0.038 0.045
Clearance (plunger / cylinder) B−C radial 0.025−0.028 0.035
* Clearance (plunger / cylinder) D radial 0.040−0.043 0.5
Guide piston outer ∅ 185
Lower housing inner ∅ 185
2 Clearance radial 0.22−0.68 0.8
3 Piston / lower spring carrier axial 0.12−0.24 0.3
4 Regulating sleeve / upper spring car-
rier
axial 0 .5−0.7
0.8
5556 Roller guide
Pin outer ∅
80
0
− 0.013
Guide piston (bore) inner ∅
80
+ 0.04
+ 0.01
5 Clearance radial 0.010−0.053 0.08
6 Total clearance between guide piston
and roller with pressure discs
axial 0.26−0.54
0.7
* Plunger conically machined in range ’C’−’D’; i.e. clearance increases in
diameter of 0.015 mm.
Clearance Table
2015

WinGD X72 Specifications

General

Brand	WinGD
Model	X72
Category	Engine
Language	English