Thread: Engine: 140 1986cc B20A: - Rough Idle solution?
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Old Aug 2nd, 2021, 16:05   #17
c1800
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It appears that 10 deg timing is for B20B, and 21-23 deg is for the B20A.

https://www.volvoclub.org.uk/manuals...ualOct1970.pdf

https://volvo1800pictures.com/docume..._B20A_B20B.pdf
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