Tourqe Specs
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Intake base to heads:
24 lb-ft == 1st pass, beginning with two center bolts on each side
45 lb-ft == final torque, I like to snug down around to final
Then walk away for >24hrs, return and reset final torque before installing rest of intake.
I don't have torque specs on the intake runner to base nor plenum torque specs. I well hand start each bolt, snug down each bolt and then snug till it feels solid. Even with used gaskets this method has never resulted in a leak.
Pay particular attention to the 9th injector bolt as it's easy to have it misaligned and bend the mounting flange.
24 lb-ft == 1st pass, beginning with two center bolts on each side
45 lb-ft == final torque, I like to snug down around to final
Then walk away for >24hrs, return and reset final torque before installing rest of intake.
I don't have torque specs on the intake runner to base nor plenum torque specs. I well hand start each bolt, snug down each bolt and then snug till it feels solid. Even with used gaskets this method has never resulted in a leak.
Pay particular attention to the 9th injector bolt as it's easy to have it misaligned and bend the mounting flange.
Pro
Joined: Mar 2007
Posts: 595
Likes: 355
From: Mt Prospect IL
2025 C4 of the Year Finalist - Unmodified
Intake Manifold Runner 25 ft.lb
Intake Manifold Except tightening sequence positions 1 & 4 35 ft.lb
Tightening sequence positions 1 & 4 45 ft.lb
Plenum Bolts Torque Plenum Bolts 25 ft.lb
Position 1 &4 are the two center bolts on the passenger side of the manifold
Tighten the bolts in a circular pattern starting at the center and working your way out
Have Fun
Intake Manifold Except tightening sequence positions 1 & 4 35 ft.lb
Tightening sequence positions 1 & 4 45 ft.lb
Plenum Bolts Torque Plenum Bolts 25 ft.lb
Position 1 &4 are the two center bolts on the passenger side of the manifold
Tighten the bolts in a circular pattern starting at the center and working your way out
Have Fun
