Originally Posted by RTB
I have the same (great) engine. Why would you not follow the service
manual directions? You can't screw up anything by re-torquing the bolts. Why not make the effort, since I'm sure the engine is pretty important to you? Not sure what they did when the engine was new. Maybe a scheduled maintenance
was required back then? Just like with new automobiles....
To re-torque the bolts is not extremely difficult, but not easy either. Need to remove the rocker arms and rocker arm shaft (then also need to do a valve adjustment). There are caps on the valve stems so always a chance they could drop down into the block and then that could be a major job to retrieve. The rockers and shaft need to come off as some of the bolt heads are located under this gear
. No way to get a socket on the bolt head without removal
. My other concern is that by re-torqueing, I could actually break the seal between the head gasket and head and block. The service manual may not always be correct, or may not always give good advice. Now if I re-torque, everything might go well with no problems, or I could wind
up damaging something or breaking a head bolt or stud. I could also find that when I tighten the head bolts, no additional torque is needed (maybe others could chime in and tell me what they have found if they did re-torque the head bolts). Just trying to follow the saying "if it ain't broke don't fix it", as with some of my past experiences, I have broken perfectly good gear
trying to make it "better".