what bolts on an eagle 5.7/6.4/6.2 are torque to yield/one time use?
I can't believe MMX would spread that around. They aren't torque to yield bolts, they use a torque to angle tightening procedure which is completely different. Sky did a pretty good explanation on his last video, I would guess you have seen it?
That said, it does appear that the factory recommends replacing some fasteners after each use. Here is what I find in the 2015-1018 Charger FSM I have.
No idea why they want the oil pan bolt replaced, but I can see some logic in the rod and flexplate bolts. Not because they are torque to yield, but because a failure is more likely. Maybe the oil pan bolts could be easily crossthreaded and cause a bunch of work? And the oil pan and felxplate bolt's don't use an angle method either.
The damper bolt doesn't even have a torque to angle requirement, nor a requirement to replace it.
I checked the procedures for the cylinder heads and rockers and nothing about replacing the bolts, nor anything for the cam bolt.
I would agree that it might be safer to replace those bolts, but I don't believe it is necessary. But just my opinion. I know I don't plan to replace them when I freshen up the motor going in my '73.
Ask Away! with Jeff Smith: The Truth Behind Torque-to-Yield Fasteners and Torque Angle Fastening - OnAllCylinders
I can't believe MMX would spread that around. They aren't torque to yield bolts, they use a torque to angle tightening procedure which is completely different. Sky did a pretty good explanation on his last video, I would guess you have seen it?
That said, it does appear that the factory recommends replacing some fasteners after each use. Here is what I find in the 2015-1018 Charger FSM I have.
No idea why they want the oil pan bolt replaced, but I can see some logic in the rod and flexplate bolts. Not because they are torque to yield, but because a failure is more likely. Maybe the oil pan bolts could be easily crossthreaded and cause a bunch of work? And the oil pan and felxplate bolt's don't use an angle method either.
The damper bolt doesn't even have a torque to angle requirement, nor a requirement to replace it.
I checked the procedures for the cylinder heads and rockers and nothing about replacing the bolts, nor anything for the cam bolt.
I would agree that it might be safer to replace those bolts, but I don't believe it is necessary. But just my opinion. I know I don't plan to replace them when I freshen up the motor going in my '73.
Ask Away! with Jeff Smith: The Truth Behind Torque-to-Yield Fasteners and Torque Angle Fastening - OnAllCylinders