Opel Corsa B, Combo, Tigra

Since 1993-2000 of release

Repair and car operation

Installation of piston rings

Before installation of new piston rings it is necessary to check up backlashes in their locks. It is meant that lateral backlashes of landing of rings in flutes of pistons are checked already up and correspond to the accepted norms.

PERFORMANCE ORDER

Spread out shatunno-piston assemblages with complete sets of rings on a working surface of a workbench. From this point on each complete set of rings will be rigidly adhered"to the piston. Now it is possible to start measurement of backlashes in locks of rings. Fill top (№ 1) компрессионное a ring in the first cylinder of the engine and level it perpendicularly, having pushed downwards the piston bottom. The ring should appear around the bottom border of a working course of rings in the cylinder. Define backlash size in the ring lock with the help щупа лезвийного type. The edge () щупа should slip hardly in the lock. Compare result of measurement to requirements of Specifications. If the backlash size leaves in this or that party for limits of an admissible range before to undertake any actions on situation correction (see more low), once again make sure that have not mixed a ring. Backlash measurement in the lock of a piston ring If the backlash is too small, it is possible to expand it with a way расточки a file with a small tooth. Clamp a rectangular file in a vice, then put on a ring the lock a file so that the end of the last has appeared in a circle. Slowly pull a ring on itself, removing surplus of metal from its end faces in the lock. Having reached the file end, remove a ring, again check up a backlash, in case of need repeat procedure. At all do not push a ring from itself on a file as thus lock edges will converge, and the risk of destruction of metal is great! The backlash size should not exceed value of 1.02 mm. Once again make sure that the got complete sets of rings meet under the characteristics to requirements of the engine of your car. Repeat procedure for the remained rings (the second компрессионного and маслосъемного) the piston of the first cylinder, then for rings of all other pistons. Remember that now each complete set of rings "is unequivocally adhered" to the piston on which it should be established. Having checked up and having modified properly backlashes in locks of rings, it is possible to start their putting on on the pistons. The first on the piston puts on маслосъемное (bottom) ring. The maslosemnoe ring consists of three separate sections. At first fill in the bottom flute of the piston a spring dilator. If the dilator is equipped противоротационным by a uvula, track, that last has got to reciprocal drilling in a piston flute. Now establish in a flute the bottom working section of a ring. In order to avoid casual damage of working sections маслосъемного rings do not use for their installation any tool, - simply get in a flute under/over a dilator at first one end of section, densely press its finger and, moving on ring perimetre, fill the rest. In last turn the top working section of a ring is established. Having planted in the bottom flute of the piston all three components маслосъемного rings, check up rotation freedom (slidings in a flute) the top and bottom working sections. The following establishes the second (bottom) компрессионное a ring. The ring should be established by marks upwards (to the piston bottom). Strictly follow instructions of manufacturers of rings which are usually printed on complete set packing. Do not mix the second компрессионное a ring with the first (top) - they have various cross-section section Top and bottom компрессионные rings differ from each other the section form Having taken advantage of a special dilator and having tracked, that the ring has been turned by marks upwards, plant it in an average flute on the piston. Try not to plant the lock of a ring more than it is really necessary for its unobstructed putting on on the piston. Operating in a similar manner, establish the first (top) компрессионное a ring (marks upwards). Try not to mix the top ring with the second. On some engines top компрессионное the ring is not marked and can be established by any party upwards. Operating in a similar manner, serially complete with rings all remained pistons.