Audi 100

1982-1990 of release

Repair and car operation

3.1.2.17. Assemblage of shatunno-piston group

PERFORMANCE ORDER

1. To heat up the piston 7 (fig. the Cranked shaft see and details of shatunno-piston group), having lowered it on 2–3 mines in water, нагретую to temperature 50–80 ° With. 2. Into the hot piston 7 quickly to insert a rod 10 and запрессовать a finger 4. To insert lock rings 8. To watch, that an arrow on a head of the piston and inflow on a rod and a rod cover have been directed to one party. 3. Before installation of new piston rings to measure a backlash in the lock of each ring, inserting them into cylinders as it has been described above. If a backlash less nominal (for компрессионных 0,3–0,45 mm, for маслосъемных 0,25–0,5 mm) to grind off a file end faces of rings. On piston rings the word of "TORAHS" is engraved, rings need to be established this word to a piston head. Locks of piston rings to arrange in regular intervals at an angle 120 ° from each other. 4. To establish in rods 10 and covers 11 loose leaves 2 шатунных bearings so that a loose leaf ledge has entered into rod or cover dredging. 5. To grease cylinders and pistons with engine oil and to insert pistons into cylinders so that the marksman on a piston head has been directed forward to a belt of a drive of a camshaft. 6. To grease with engine oil loose leaves and necks of a cranked shaft and to establish a cover 11 on a rod 10 so that cylinder number on the bottom head of a rod and number on a cover were on the one hand. To insert шатунные bolts, to wrap nuts and to tighten the moment in two etapa:1 th stage – 30 Н·м (3,0 кгс·м); 2nd stage – to tighten further on a turn quarter (90 °). 7. To turn a cranked shaft, to be convinced of ease of its rotation. 8. Similarly to establish other pistons with rods. 9. To check up probeом a lateral backlash between the bottom head of a rod and a cheek of a cranked shaft. It should be equal 0,37 mm. 10. To establish the oil pump, a head of the block and a belt of a drive of a camshaft.