TimberJack Posted October 2, 2016 Share Posted October 2, 2016 Just installed a new rear head on my AC 427. Got it all put back together and was running overhead and had a problem on #4 Jake adjustment, with the screw backed all the way out I could not get my feeler gauge in between actuating pin and the piston. I had no problem with the others. Any help would great. Thanks Quote Link to comment Share on other sites More sharing options...
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