FORD'S SCORPIO

1985-1994 of launch

Repair and operation of the car

The use of pistons and rings of piston can be normally in the moment of the emergence of signs of the lifted consumption of oil and a low compression that is joined sometimes with the cylinders use.

Another sign of the use of the piston is the blow of the similar piston to the noise of an end of inclination that has to be distinguished of the loads blow. It is possible to listen to it exactly in small turns of the motor the absence of the load (for example, in the way that wastes time), and one hears much less in the increase of turns of the motor. The use of the piston normally appears around a skirt or the face of end more decrease of the piston. Considerably also, where is the thickness of a skirt differentiated of the normal one.

ORDER OF REALIZATION

Since the check of the use of the piston touches to withdraw rings of the piston, to insert rings in cylinders from above, having pressed them approximately in 40 mm through the piston (of which the rings were withdrawn). Then to measure a slit in rings locks through the probe of the measurement of slits. If the slit exceeds the specified maximum, substitution of necessity to cancel.

Inside some time the flutes in which the rings in the piston are installed also can increase in sizes. The slit between a ring and the piston in a flute must not exceed 0,102 mm of two superior rings of fighter and 0,076 mm of the ring of scraper of lower oil.

Nevertheless rarely turn out to be that the piston only was worn away in rings flutes, and the necessity of the substitution for only one this reason hardly can appear. In any pistons substitution the weight of four plays of pistons and sticks will be inside the modification in 8 grams to guard the general balance of the motor.

ORDER OF REALIZATION

1. For the removal of rings of piston it is careful to move them to the superior part of the piston so that it does not scratch the league from aluminum; to never move them to a piston skirt. Prevention It is easy to damage rings of piston if they are withdrawn carelessly, therefore, this operation has to be executed extremely carefully. It is possible to use old probes. 2. To lift one of edges of a ring of piston that has to be taken of a flute and to insert below him the probe. 3. To drive slowly around the probe around the piston and when the ring leaves the flute, to withdraw it, and the probe will prevent it from slipping in an empty flute if it is already available. Prevention The piston rings must always withdraw in top the piston. 4. To check which flutes pure piston rings.

The easiest way of the installation of rings is the use of the probe, and the rings installation is done in one, from the lowest ring of scraper of oil. Then the probe can remove other flutes of rings of piston down until the necessary flute is got. Then the piston ring moves from the probe for the necessary flute.

Another method of the installation of rings is a deduction his great fingers and fingers of rate. Such a method demands strong hands and great care like the ring can confide exaggerated strongly and crack.