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Re: Mack MP-7 Head gasket
Posted to HD/Fleet Forum on 3/8/2018

Oops I forgot, remove the top 3 bolts from the idler gear hub. Leave the lower 2 in place and leave the gear attached to the plate. One bolt will be accessed through the timing gear. There are also 2 through the plate in the area under the camshaft gear Login to read more.