BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

3.1.5. A cover of a head of cylinders

THE GENERAL DATA

Nuts of fastening of a cover of a head of cylinders and a ventilating hose


Order of a tightening of nuts of a cover of a head of cylinders 4-cylinder (above) and 6-cylinder (in the bottom of) engines


Removal and installation

PERFORMANCE ORDER

1. Remove the air filter. 2. Disconnect from a cover of a head of cylinders a ventilating hose. 3. On engine M20 remove a rack of a soaking up collector and an arm of gauges (or the valve of stabilisation of turns of idling), preliminary having disconnected sockets. 4. Turn away a nut of fastening of a cover. Disconnect the holder of high-voltage wires, or remove a casing of wires from hairpins (in drawing on the right – the 4-cylinder engine, in drawing at the left – the 6-cylinder engine). 5. Uncover heads of cylinders of engine M40 and a lining. 6. On engine M40 also uncover a cam-shaft. 7. Get semicircular заглушку in a forward part of a head of cylinders of engine M40 (if are provided). 8. Before installation clear condensed surfaces of a cover and a head of cylinders of the rests of consolidations. 9. Replace semicircular заглушку, having greased a place прилегания to a lining of a cover of a head of cylinders with hermetic RTV. Wrap nuts during no more than 10 mines after hermetic drawing. 10. Uncover also a lining. On engine M40 also uncover a cam-shaft. Get semicircular заглушку in a forward part of a head of cylinders (if are provided). 11. On engine M40 establish a cover of a cam-shaft and a new lining. In regular intervals tighten nuts as it should be specified in illustrations, without supposing their excessive tightening, that not сдеформировать a cover. 12. Further assemblage is carried out upside-down.