Valve cover gaskets
Diesel Enthusiast
Joined: Jan 2015
Posts: 104
Likes: 30
Rocker Cover Installation
Clean the sealing surfaces on the cylinder head and rocker arm cover with carburetor cleaner or equivalent. Apply 3/16" bead of RTV sealant GM P/N 12345739) to the valve covers, inboard of the bolt holes. Refer to figure 66 (see attached). The sealer must be wet to the touch when the bolts are tightened.
Tighten valve cover bolts to 16 ft lbs...
Notice: Do not allow RTV sealant into the valve cover bolt holes. This may cause a "hydraulic lock" condition when the bolts are tightened, damaging the cylinder head casting.
Clean the sealing surfaces on the cylinder head and rocker arm cover with carburetor cleaner or equivalent. Apply 3/16" bead of RTV sealant GM P/N 12345739) to the valve covers, inboard of the bolt holes. Refer to figure 66 (see attached). The sealer must be wet to the touch when the bolts are tightened.
Tighten valve cover bolts to 16 ft lbs...
Notice: Do not allow RTV sealant into the valve cover bolt holes. This may cause a "hydraulic lock" condition when the bolts are tightened, damaging the cylinder head casting.
