What are the torque settings for head bolts?
SOURCE: head bolts torque settings According to my haynes manual for G-S reg, 1989-1998 it goes as follows, Stage 1:- Tighten all bolts by hand until bolt heads just contact cyl. head. Stage 2:-Tighten all bolts to 40Nm or 30lb ft. Stage 3:-Angle tighten all bolts a further 60 degrees. Stage 4:-Angle tighten all bolts again a further 60 degrees.
What is the torque for the head bolt?
The medium-head bolts need 22 foot-pounds of torque and a 65-degree rotation. The long cylinder head bolts required 22 foot-pounds of torque and a 75-degree rotation.
What are torque specifications?
Torque specifications are for dry threads only. The fastener threads should be free of oil, dirt, grit, corrosion, etc. The hardware should turn freely without binding when tightened by hand. It is important NOT to lubricate hardware threads or seats. The friction at which torque is measured against should come from the hardware seats.
What is head bolt torque?
Head Bolt Torque. Head bolt torque refers to the amount of rotational force that must be applied to the cylinder head bolts for a safe and secure connection either to the engine block or another cylinder head depending upon the engine.
Stage 3:-Angle tighten all bolts a further 60 degrees. Stage 4:-Angle tighten all bolts again a further 60 degrees. Stage 5:- M12 x 140mm bolts ONLY angle tighten a further 20 degrees. Hope this helps everyone, sorry it seems longwinded but that is how it’s written in the manual.
How much torque does a Vortec head have?
Type: Bolt Crankshaft Position Sensor To Engine Block 5.92 71 8.02 Vortec – Crankshaft Sensor Bolts (MFI) Type: Bolt Cylinder Head To Engine Block 46 552 62.37 Vortec – Head Bolts – LONG – 2 Steps: 46FtLbs; +90deg Type: Bolt 43 516 58.3 Vortec – Head Bolts – SHORT – 2 Steps: 43FtLbs; +90deg
What are the torque specifications for a torkspec engine?
94.91 Vortec – Main Bearing Cap Bolts Type: Bolt 9 108 12.2 Vortec – Crankshaft Sensor Bolts (MFI) Type: Bolt 7.33 88 9.94 Vortec – Crankshaft Sensor Bolts (MFI) Type: Bolt Crankshaft Position Sensor To Engine Block 5.92 71 8.02 Vortec – Crankshaft Sensor Bolts (MFI) Type: Bolt Cylinder Head To Engine Block 46 552 62.37
How much torque does a 4.3L V6 have?
Type: Bolt Cylinder Head To Cylinder Head 65 780 88.13 Type: Bolt Cylinder Head To Cylinder Head 22 264 29.83 Vortec – Head Bolts – LONG – 2 Steps: 22FtLbs; +75deg Type: Bolt Cylinder Head To Cylinder Head 22 264 29.83 Vortec – Head Bolts – MEDIUM – 2 Steps: 22FtLbs; +65deg Type: Bolt Cylinder Head To Cylinder Head 22 264 29.83