What is the torque on rocker arm bolts?
For 3.1-liter engines built between 1995 and 1997, the rocker arm bolts require two steps to reach 7.42 foot-pounds of torque in order to attach to the cylinder head. For later engines, these same bolts should receive 14 foot-pounds of torque to join properly.
Do you have to replace rocker arm bolts?
“On 1996-99 vehicles, the rocker arm bolts are designed to permanently stretch when tightened. The correct part number fastener must be used to replace this type of fastener. Do NOT use a bolt which is stronger in this application.
Can you reuse rocker arm bolts?
The intake manifold, rocker arm, and rear cover bolts can be reused. The vertical main bolts can also be re-used, but the side bolts are often replaced because they have sealant on them. These can be re-used if sealant is re-applied.
How do you know if your rocker arm is loose?
2 Signs Your Car Engine’s Rocker Arm Is Loose Or Broken
- Engine’s Performance Has Decreased Dramatically. One sign that your car’s engine has a loose or broken rocker arm is when the engine’s performance has dramatically decreased.
- Ticking Sounds Are Constantly Heard While the Engine Is Running.
Is it hard to replace a rocker arm?
Because rocker arm repair is tedious work, it can be time intensive so hiring an auto mechanic or dealership to do the job is not cheap. Expect to pay anywhere from $500 to $1,500 (parts + labor) depending on the vehicle. A good chunk of the expense is for labor as it can take a long time to access the necessary parts.
What kind of rockers do I need for a hemi engine?
The Arrington HEMI rocker arms will allow you to run double springs and take your HEMIs RPMs north of 6,500! These are the factory Mopar Exhaust Rockers w/ shafts and bolts for all GEN III HEMI engines. These are factory Mopar Intake Rockers w/ shafts and bolts for all GEN III HEMI heads.
How much torque should a hemi engine have?
As with all engines, the 5.7-liter HEMI’s bolt torque specifications must be followed closely. Tighten the exhaust manifold bolts to 18 foot-pounds of torque, and the manifold’s head shield nuts to 11 foot-pounds. Tighten the camshaft thrust plate bolts to 21 foot-pounds.
What size exhaust manifold bolts do I need for Hemi?
As with all engines, the 5.7-liter HEMI’s bolt torque specifications must be followed closely. Tighten the exhaust manifold bolts to 18 foot-pounds of torque, and the manifold’s head shield nuts to 11 foot-pounds.
What could be wrong with my rocker arms?
Will Definitely be on more often if this helps my problem so, what I’m assuming probably happened is when you tightened down the rocker arms, there were probably valves or something partially open putting pressure on the rockers, and they didn’t quite get torqued down enough so when the engine rotated you had some slack in the valve train.