Opel Corsa B, Combo, Tigra

Since 1993-2000 of release

Repair and car operation

Removal and installation of a head of cylinders

Removal

The head of cylinders acts in film only from the cooled down engine. The inlet pipeline and a final collector can to be disconnected.

Components of assemblage of a head of cylinders

1— The Head of cylinders 2 — the Camshaft 3 — the Cover of the bearing of a camshaft 4 — the Eye 5 — the Hairpin 6 — the Hairpin 7 — the Cover 8 — a camshaft Epiploon	9 — the Valve 10 — the Bottom plate of a spring of the valve 11 — Maslootrazhatelnyj a cap 12 — a valve Spring 13 — the Top plate of a spring of the valve 14 — Crackers 15 — a valve Pusher 16 — the Adjusting washer

PERFORMANCE ORDER

Disconnect a negative wire from the battery. Uncover a broad tank of system of cooling, having pitted thereby pressure in system. Remove the air filter and a hose of giving of air. Merge cooling liquid (see the Head of Adjustment and car routine maintenance). On a turbodiesel turn out bolts of fastening and remove the holder of a soaking up pipe and a pipe of forced air on a head and the block of cylinders. Remove directing tube щупа level of impellent oil from the block of cylinders. Close open connecting flanges on турбонагнетателе Remove a gear belt from cogwheels ТНВД and a camshaft (see Has undressed Removal and installation of a belt of drive ГРМ). Turn out bolts of fastening of a cogwheel of a camshaft. Turn out a lock bolt of position ВМТ from a cogwheel of a camshaft and remove a cogwheel Bolts of fastening of a cogwheel of a camshaft Turn out the top bolts of fastening of a back cover of a gear belt. Turn out bolts of fastening and remove a reception pipe of system of release from a collector and from the holder on an intermediate flange, on a turbodiesel - from a connecting branch pipe турбонагнетателя. Turn out bolts of fastening and remove a thermofilter from a final collector. On a turbodiesel turn out a hollow bolt pressure head маслопровода on турбонагнетателе. Remove fuel highways from atomizers and with ТНВД, without changing their form. Remove a hose with returnable топливопровода. Disconnect burn down electroconductings from the inlet pipeline. On a turbodiesel remove a pressure head hose at the inlet pipeline. Disconnect electroconducting of the contact tyre of candles накаливания. Separate socket Д/B of temperature of a cooling liquid and the temperature gauge. Disconnect hoses of system of cooling from the thermostat case. On the engine without pressurisation disconnect a pipe of system of cooling from a final branch pipe. On a turbodiesel wring out a connecting branch pipe of the bottom hose of system of cooling from a pipe. Give bolts of fastening of a head of cylinders outside inside at first on a quarter, and then on a half-turn. Then completely turn out bolts. Order отдавания bolts of fastening of a head of cylinders To turn out bolts follows only at the cooled down engine. Wring out a little aside a back cover of a gear belt and raise a head of cylinders with the inlet pipeline and a final collector.

The description of procedure of dismantling of a head of cylinders in case of need carrying out of its regenerative repair, is resulted in the Part the General and major repairs of the engine of the present Chapter.

Preparation for installation

PERFORMANCE ORDER

Carefully smooth out and dry wipe interfaced surfaces of a head and the block of cylinders. Use a firm plastic or wooden scraper for removal of all traces of a material of an old lining and a deposit. Also clear the bottoms of pistons. Be extremely cautious - surfaces easily to damage. Remember that the dirt should not get in маслотоки, water galleries channels and carving apertures - закупорьте their stoppers or stick with an adhesive tape. For prevention of hit of a deposit in backlashes between pistons and cylinders, fill the last of dense greasing which on termination of clearing procedure will be easy for removing a rigid brush. On termination of cleaning wipe all surfaces pure dry rags. Survey interfaced surfaces of a head and the block on presence of deep scratches, cracks and other damages. Small defects can be eliminated small шабером, in more serious cases the head should be pierced, or to replace. Make sure of cleanliness and dryness of carving apertures, - just in case blow their compressed air (it is possible to take advantage of the bicycle pump). Presence at deaf apertures of traces of greasing can lead to block destruction at a tightening of bolts as a result of increase of hydraulic pressure. Bolts of fastening of a head are subject to replacement without fail, without dependence from their current condition. By means of a steel ruler and щупа лезвийного type check up planeness of an interfaced surface of a head (the Part the General and major repairs of the engine of the present Chapter see). On the given engines the backlash size between a head and pistons is regulated by thickness of a lining. As marks on the narrow party of a lining are available two either one aperture or apertures can not be. If the head or the block of cylinders were processed, or new pistons were established, the thickness of a sealing lining is necessary for defining again. For this purpose by means of the indicator the size of its excess is measured in three points of the piston. Preliminary remove the rests of products of combustion on the bottom of the piston and the block of cylinders. Size measurement выступания pistons on engines of 1.7 l SOHC

If at measurement выступания the piston one of 12 values exceeds the top border of a corresponding range on 0.05 mm, it is necessary to choose the following class of a thickness.

Sealing lining of a head of cylinders

Installation

Replacement of bolts of fastening of a head of cylinders is made without fail, without dependence from their current condition!

PERFORMANCE ORDER

Put a new sealing lining without hermetic on a fat-free interfaced surface so that not to block an aperture. The inscription OBEN/TOP not to a lining should be turned upwards and towards a gear belt of the engine. Establish a head of cylinders. Thus any of pistons should not be in position ВМТ. For this purpose preliminary turn a cranked shaft forward or back on a turn quarter. Screw in regular intervals new bolts of fastening of a head of cylinders in an order, the return specified in illustrations. Apply necessarily new bolts. Bolts are necessary for tightening in three steps: at first with effort of 40 Nanometers, then twice on a corner 60 75 hailstones. Establish a cover of a head of cylinders with a new lining and tighten its fixture cross-wise with effort of 8 Nanometers. Installation is made in an order, the return to an order of dismantle of components. Tighten fixture with demanded effort. Use new consolidations at installation of a directing tube щупа measurements of level of impellent oil, hoses турбонагнетателя, a reception pipe of system of release of the fulfilled gases. In installation end fill cooling system, and also check up and, if necessary, modify oil level in the engine. If the engine acted in film owing to damage of a sealing lining of a head of cylinders, replace oil and the oil filter since in impellent oil there can be a cooling liquid. Check up and, if necessary, adjust number of turns of idling and the maximum number of turns.