Volvo DL 1981 Owner Manual

IV Engine Crankcase Ventilation System, Page 73 of 127 pages for Volvo DL 1981 Owner Manual. The Owner Manual is applied into the following products: GL 1981, GT 1981

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1981 Volvo DL, GL and GLT Ignition timing The ignition timing should be inspected at the 600-1,200 miles (1,000-2,000 km) inspection. All adjusting work should be done with the proper equipment. The distributor is one of the most sensitive engine units. Careless handling can lead to decreased engine output and high fuel consumption or even serious damage to the engine. IV Engine Crankcase Ventilation System Crankcase ventilation The engine is provided with positive crankcase ventilation which prevents crankcase gases from being released into the atmosphere. Instead, the crankcase gases are admitted to the intake manifold and cylinders. Cleaning PCV valve The calibrated positive crankcase ventilation valve should be cleaned every 60,000 miles. Rubber hoses should be checked for damage at the same time. Replace if necessary. pg. 59 Servicing file:///K|/ownersdocs/1981/81_dl_gl_glt/81DLGLGLT_03a.htm (16 of 18)12/22/2006 10:28:38 PM

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