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4.19.1. Check of a working gap of the bearing


The sequence of tightening of bolts of fastening of covers of radical bearings on chetyrekhts the lindrovy engine

The sequence of tightening of bolts of fastening of covers of radical bearings on the engine 3VZ-FE

The sequence of tightening of bolts of fastening of covers of radical bearings on the engine 1MZ-FE

The sequence of tightening of side bolts of fastening of covers of radical bearings on the engine 1MZ-FE

Screwing up of bolts of fastening of covers of radical bearings on the V6 engine

PERFORMANCE ORDER
1. Clear a back part of inserts and the place of their installation in the block of cylinders and covers of radical bearings.
2. Install inserts on the places in the block of cylinders of the engine.
3. One of methods which assumes existence of a micrometer for measurement of diameter of openings (see item 4) consists in installing covers of radical bearings together with inserts on the block of cylinders and to screw them the required moment. Measure the internal diameter of each collected couple of inserts of bearings. Measure diameter of each radical neck of a bent shaft. Subtract the corresponding diameter of a radical neck of a bent shaft from the measured diameter of the bearing.
4. The second (and more exact) the method consists in using the product known as Plastigage. It is a round sovy core of plastic which contracts between an insert and a neck of a bent shaft. After removal of a cover of the radical bearing the deformed plastic core is measured by a special template which is available in Plastigage set. The procedure for Plastigage use following.
4a. On the inserts installed in the block of cylinders establish a bent shaft without lubricant. Necks of a bent shaft and inserts have to be absolutely pure and dry.
4b. Cut off several pieces of a plastic core of Plastigage (they have to be slightly shorter, than width of the main bearings) and establish on each neck of a bent shaft.
4 century. Establish covers with the lower inserts and tighten fastening bolts the required moment. In the course of measurement of a gap by Plastigage method do not rotate a bent shaft (see rice. The sequence of tightening of bolts of fastening of covers of radical bearings on chetyrekhts the lindrovy engine, the Sequence of tightening of bolts of fastening of covers of radical bearings on the engine 3VZ-FE, the Sequence of tightening of bolts of fastening of covers of radical bearings on the engine 1MZ-FE, the Sequence of tightening of side bolts of fastening of covers of radical bearings on the engine 1MZ-FE).
4 g. Unscrew a cover of fastening of an insert, remove it and apply a large-scale ruler to the deformed plastic core. Comparing width of the deformed plastic core to control width on a large-scale ruler, determine gap size.
4. In conclusion carefully clear Plastigage-material traces from inserts and a bent shaft.