Paul J A Posted September 24, 2023 Share Posted September 24, 2023 (edited) Cummins *****Series 871***** ISX 600 & 650 HP Valve Issue. The initial ISX were , ***** Series 870*****. ISX in 525, 600, 650 HP. Any one have or had a issue with, Series 871, *****that***** generation, of the ISX Engine? Edited September 24, 2023 by Paul J A Link to comment Share on other sites More sharing options...
Solution vito.a Posted September 24, 2023 Solution Share Posted September 24, 2023 Over on IRV2.com, one or maybe two folks have had issues with the CM870 ISX. But several have had issues with the CM871 650hp engine. Link to comment Share on other sites More sharing options...
Dr4Film Posted September 24, 2023 Share Posted September 24, 2023 I have also read about some people having engine valve problems over on iRV2.com Link to comment Share on other sites More sharing options...
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