Why do we need a torque specification for a TTY bolt?
This torque specification applies the proper clamp load to the joint while accounting for friction provided by the threads and the underside of the bolt head. Today’s engines require higher clamping forces (due to increased combustion pressure) which cannot be achieved with conventional small diameter bolts normally found in these engines.
What are the torque specifications for a DOHC cylinder head?
240 27.12 LQ1 – DOHC – Camshaft Carrier to Cylinder Head Bolts Type: Bolt 8 96 10.85 LQ1 – DOHC – Camshaft Position Sensor Bolts Type: Bolt 15 180 20.34 LQ1 – DOHC – Rod Caps – 2 Steps: 15FtLbs; +75deg Type: 37 444 50.17 LQ1 – DOHC – Main Caps – 2 Steps: 37FtLbs; +75deg Type: 8 96 10.85 LQ1 – DOHC – Crankshaft Position Sensor Bolts Type: Bolt
How is the torque of a bolt determined?
Traditionally, a torque specification is a calculated number. This torque specification applies the proper clamp load to the joint while accounting for friction provided by the threads and the underside of the bolt head.
What are the torque specifications for a 3.4L V6?
10.85 LQ1 – DOHC – Camshaft Position Sensor Bolts Type: Bolt 15 180 20.34 LQ1 – DOHC – Rod Caps – 2 Steps: 15FtLbs; +75deg Type: 37 444 50.17 LQ1 – DOHC – Main Caps – 2 Steps: 37FtLbs; +75deg Type: 8 96 10.85 LQ1 – DOHC – Crankshaft Position Sensor Bolts Type: Bolt Cylinder Head To Cylinder Head 44 528 59.66
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 the ARP bolt torque specifications?
- Rod Bolts. Rod bolts with part no.
- and FBV8716 with 90 foot-pounds of torque using oil and 65 foot-pounds of torque using ARP lube.
- Cylinder Head Studs. Cylinder head studs with part no.
- Main Studs.
What are the torque specifications for a metric bolt?
Metric Bolt Torque. If the bolt diameter is 5 mm, thread series is Coarse, ISO 898-1 Property Class is 8.8, then. Torque for Ecoguard Bolt is 4.0 Nm, Lubricated is 4.6 Nm and dry is 6.2 Nm.