SOURCE: Engine Bolt Torques- 2005 Chevy Impala/3400 Engine
Head Bolts
Step one 37 ft lbs then tignten 120 degrees more
Rocker arms
Step one 11 ft lbs then tighten 90 degresss more
Upper intake
89 inch lbs
Lower intake
132 inch lbs
SOURCE: I need to know the torque specs for the rocker arm
Hello.
The torque specification on the rocker arm nut is 22 ft/lbs
I hope your repair goes well.
KL
Testimonial: "Thanks a million! My repair is going very well and should finish up tonight."
SOURCE: Rocker arm torque specs on a 97 gmc jimmy 4.3
4.3L Engine
The 4.3L engines may be equipped with either of 2 rocker arm retaining systems. If your engine utilizes screw-in type rocker arm studs with positive stop shoulders, no valve lash adjustment is necessary or possible. If however, you engine utilizes the pressed-in rocker arm studs, use the following procedure to tighten the rocker arm nuts and properly center the pushrod on the hydraulic lifter:
Another method to tell when the piston is coming up on the compression stroke is by removing the spark plug and placing your thumb over the hole, you will feel the air being forced out of the spark plug hole. Stop turning the crankshaft when the TDC timing mark on the crankshaft pulley is directly aligned with the timing mark pointer or the zero mark on the scale.
The valve arrangement is as follows:
E-I-I-E-I-E (right bank-front-to-rear)
E-I-E-I-I-E (left bank-front-to-rear)
374 views
Usually answered in minutes!
×