Intake Valve Sticking in Some Carburetor Engines Neste Oy Finland

Format:

Conference/Event

Author/Creator:

Mikkonen, Seppo, author.

Conference Name:

1988 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1988-10-10 : Portland, Oregon, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1988

Summary:

Intake valve sticking, created by the accumulation of deposits on the valve stems, caused cold starting problems and engine failures at low temperatures (below + 5°C). Sticking was promoted by the high olefin content in gasoline (over 25% FIA). Sticking did not occur if gasoline contained no detergent additives. Some additives even led to sticking while some solved the problem. Engine oils containing polymeric additives promoted sticking.Clearances of intake valve stems and stem seals were probably factors affecting sticking. Tests were made using cars on the road on an urban driving cycle

Notes:

Vendor supplied data

Publisher Number:

881643

Access Restriction:

Restricted for use by site license