Volvo RWD 444-544 Forum

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544 bACKFIRES 444-544

posted by  someone claiming to be Dick on  Fri Sep 1 20:53 CST 2023 [RELATED]

I don't know the actual rpms (no tach) but reving it up high in second gear
(especially uphill) has produced rapid, violent backfire. Compression is low
from 110 to 125, and mileage is 181,000....Brand new plugs have helped a lot.

I will recheck the valve adjustment in future; apparently if the valves do not
stay adjusted, it could mean the lobes on camshaft are worn, requiring a new
camshaft... Thanks James






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New 544 bACKFIRES [444-544]
posted by  someone claiming to be Dick  on Sat Aug 19 15:47 CST 2023 >


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