Уменьшение зазоров в шейках коленчатого вала: коленвал Peugeot 306 I

Метка

The operating clearance will now be between 0,025 and 0,062 mm instead of between 0,034 and 0,075 mm

This modification is applicable in Service to XU5 and XU9 engines, all models

The operating clearance will now be between 0,038 and 0,069 mm instead of between 0,045 and 0,109 mm

Whatever the engine type, reduced clearances are obtained by the creation of four categories of lower half-shells of differing thicknesses instead of only one

This modification must be carried out in the case of any work on the half-shells

Interpretation of markings made in the factory

The category to be used is selected by referring to bar codes or alphanumeric characters

• (A) bar codes are used exclusively by the assembly plant
• (B) alphanumeric codes for identification of the lower half-shells to be fitted the first character on the left refers to bearing No. 1 (со стороны маховика двигателя)

Вкладыши

Метка цвета (C) позволяет идентифицировать класс

Parts Division supplies the half-shells individually

Двигателя XU10

The reduction in the crankshaft bearings clearance can only be carried out on engines with a compatible lubrication system

The following specific points must be observed

• Шкив (1) должен содержать 26 зубьев
• Цепь (2) должна содержать 52 звеньев
• Толщина проставки (3) должна составлять 1,1 мм

Шкив (1): реферанс P.R 0513.54

Цепь (2): реферанс P.R 1033.10

Проставку (3): реферанс P.R 1012.07

The discharge valve spring (4): реферанс P.R 1157.11

Направляющая ось (5) пружины разгрузочного клапана: реферанс P.R 1157.19

Таблица парности

Follow the order of the alphanumeric markings on the cylinder block and the crankshaft

Match up these markings on the matching table to determine the category of lower half-shell to fit to the corresponding main bearing cap

Пример

• H = first character on the cylinder block
• 6 = first character on the crankshaft

In this case, the half-shell to be used is of category D with a red paint mark

In all cases, the five upper half-shells are always of the same thickness and bear a paint mark

• Желтого цвета: XU5, XU7JP, XU9
• Черный: XU10

Matching procedure

When work is carried out on the crankshaft bearing half-shells, several conditions may occur

A - the cylinder block and the crankshaft have alphanumeric codes

In this case, refer to the matching table to determine the categories of half-shells to be fitted

B - the cylinder block and the crankshaft have no alphanumeric code or only one of the two units has one

В данном случае для точного измерения зазора можно использовать пластиковый щуп PLASTIGAGE PG1: реферанс P.R 9769.42

Использование пластикового щупа

This operation is carried out using five grooved upper half-shells

• Желтого цвета: XU5, XU7JP, XU9
• Черный: XU10

Five lower half-shells of category A (blue paint mark corresponding to the type of engine concerned)

The five lower half-shells will be placed, once the measurements have been taken, in the XU engine kit Part No. (-).0153 (reference parts)

Рабочий режим

Position the five grooved upper half-shells in the cylinder block

Carefully remove all traces of oil from the half-shells

Вставьте коленчатый вал в блок цилиндров

Cut five lengths of PLASTIGAGE to the width of a bearing shell

Open the paper envelopes and extract the plastic wires

Установите

• A plastic wire to each of the crankshaft bearings
• The main bearing caps keeping them in order (затяните с рекомендованным моментом)

Снять крышки коренных подшипников

Measure the width of the gauge, flat at its widest point, using the markings on the envelope (use the side marked in millimetres)

Determine the category of lower half-shells to be fitted by referring to the following tables

After fitting the half-shells of fixed thickness, check the clearance using the method described above

Такие действия должны проводиться в ИСКЛЮЧИТЕЛЬНЫХ СЛУЧАЯХ; это может привести к повышению шума при работе двигателя