TERRY GRAVES Posted January 2, 2020 Share Posted January 2, 2020 NEED TO KNOW THE VALVE SETTINGS FOR THE CROSSOVER ARMS FOR 4 VALVE ENGINE. 16000 IN. 24000 EX ON VALVES...HOWEVER....IM NEEDING THE CROSSOVER ARM SETTINGS. ANY HELP WOULD BE APPRECIATED. Quote Link to comment https://www.bigmacktrucks.com/topic/60364-87-mack-r686st/ Share on other sites More sharing options...
0 j hancock Posted January 4, 2020 Share Posted January 4, 2020 In 1986, the yoke adjustment was 0.010. Possibly the same for 1987. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/60364-87-mack-r686st/#findComment-439420 Share on other sites More sharing options...
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TERRY GRAVES
NEED TO KNOW THE VALVE SETTINGS FOR THE CROSSOVER ARMS FOR 4 VALVE ENGINE. 16000 IN. 24000 EX ON VALVES...HOWEVER....IM NEEDING THE CROSSOVER ARM SETTINGS. ANY HELP WOULD BE APPRECIATED.
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https://www.bigmacktrucks.com/topic/60364-87-mack-r686st/Share on other sites
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