GM 2.8, 3.1 & 3.4 Stripped Threads – TIME-SERT 1812CORE
November 10, 2011 Chevrolet, GM Intake, How To Auto Repair, TIME-SERT Kits 3 CommentsDenLorsTools.com Summary: Suggestions on how to properly repair stripped threads for rocker arm bolts in cylinder heads. Tools for repairing rocker arm bolt holes for gm 2.8, 3.1 and 3.4’s. Affected engines in GM vehicles are 2.8, 3.1 and 3.4 Liter V-6 motors. Aluminum cylinder heads used in Chevrolet, Oldsmobile, Buick and Pontiac’s have a common problem with rocker arms coming loose. Misfire codes and very rough running conditions can indicate a fallen rocker arm.