RADIATOR & AFTERCOOLER GP 3440694 - Caterpillar

start by: a) remove valves Use Special Instruction Form No. GMG02114, Using 8S7170 and 9S3080 Valve Seat Insert Puller Groups, for references. 1. Remove the valve seat insert with tool group (A).2. Clean and remove any burrs from the valve seat bore. 3. Install the new valve seat insert with tool group (A). When installing the valve seat insert in the cylinder head, do not cause an increase in the diameter of the extractor. When the extractor head starts to become larger, damage will be done to the extractor lips.4. Grind the valve seat insert according to specifications given in the Service Manual Specifications.end by: a) install valves