How do you torque Subaru head bolts?

Loosen all bolts in reverse order. Loosen them again another 160°. Tighten bolts one and two to 25 to 36 foot-pounds. Tighten bolts three, four, five and six to 132 inch-pounds.

How much torque is required for tightening the cylinder head?

If an engine produces 1,500 pounds of pressure and the cylinder head has 8 bolts, then each bolt must be tightened to 187 foot-pounds of torque to secure the cylinder head to the block.

What size are Subaru head bolts?

The Snap-on Headbolt Socket for Subaru vehicles (No. S6214) is a 1/2″ drive, 12 point 14mm mid-length specialty tool that is designed to remove and install headbolts on 1995 to current Subaru vehicles.

Is it OK to reuse head bolts?

Can I reuse head bolts? A head bolt should not be reused if the threads are galled or badly damaged. Chasing damaged head bolt threads with a die will clean up the threads but also remove material (metal) and undermine the head bolt’s ability to torque down and hold to specs.

Do Subaru head bolts need to be replaced?

When it’s done properly, the head bolts shouldn’t be permanently stretched to their yield point, as they are with the TTY method. For this reason, it may not be absolutely necessary to replace the head bolts. In fact, Subaru service information does not specify new head bolts as part of a head gasket repair job.

What kind of engine does a Subaru have?

Subaru 2.2 Liter Engine 4 his edition of The End Wrenchintroduces the Subaru 2.2 liter naturally aspirated (N/A) and 2.2 liter turbocharged horizontally opposed overhead cam (OHC) engines. It reviews the mechanical features of these engines and the differences between existing engines.

Where are the bearing journals located on a Subaru?

The camshaft bearing journals are located in the cylinder head. This design improves camshaft support. The left camshaft is longer than the right camshaft to properly align the cam belt sprockets due to cylinder head offset. A camshaft sup- port bolts to the front of the left cylinder head to support the camshaft.

What are the Pistons on a Subaru 2.2 liter engine?

The 2.2L pistons are cast aluminum alloy and feature a 2mm offset piston pin. The pistons are directional for the left and the right side of the engine and are stamped with an “L” or “R”. In addition, each piston is stamped with an arrow which must point to front of the engine.

Where is the serial number on a Subaru 2.2 liter engine?

The engine serial number is located on the machined boss on the left side of the clutch housing. The 2.2L engine designation is EJ22. Piston and bearing dimension information is stamped on a machined surface where the crankcase halves meet.