These screws were used on all A series engines that had simplex chains (duplex used countersunk heads AEA687 for clearance). These screws fitted into the main bearing cap holding the front timing gear plate to the engine. 1/4 UNF x 5/8" - two (2) required per car.
These screws were used on all A series engines that had simplex chains (duplex used countersunk heads AEA687 for clearance). These screws fitted into the main bearing cap holding the front timing gear plate to the engine. 1/4 UNF x 5/8" - two (2) required per car.
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