Guidelines And Torque Specifications Of Engine Fasteners Using The Torque-Angle Method (09-EM-006)

Publication date: 2009-08-01
Reference number: 09-EM-006

GUIDELINES AND TORQUE SPECIFICATIONS OF ENGINE FASTENERS USING THE TORQUE-ANGLE METHOD

TECHNICAL SERVICE BULLETIN

Reference Number(s): 09-EM-006, Date of Issue: August, 2009

HYUNDAI:	2003-2008 Tiburon; 2005-2009 Tucson; 2006-2010 Accent Azera, Sonata; 2007-2009 Entourage; 2007-2010 Elantra Santa Fe, Veracruz; 2009-2010 Elantra Touring, Genesis; 2010 Genesis Coupe
GROUP:	ENGINE MECHANICAL

NOTE: This bulletin is an extension of TSB 02-20-002 to include latest models and guidelines.

DESCRIPTION

The information outlined in this bulletin provides reuse guidelines and torque specifications for the cylinder head, connecting rod, and main bearing bolts that must be fastened using the torque-angle method.

VEHICLES AFFECTED

ENGINE TYPE	APPLICABLE MODELS
Alpha 1.6L	(MC) Accent
Beta 2.0L	(HD) Elantra/(FD) Elantra Touring/(JM) Tucson 2.0L (GK) Tiburon 2.0L
Theta 2.0L/2.4L	(BK) Genesis Coupe 2.0L/(NF) Sonata 2.4L
Mu 2.7L	(CM) Santa Fe 2.7L
Lambda 3.3L	(NF) Sonata 3.3L/(TG) Azera 3.3L/(CM) Santa Fe 3.3L
Lambda 3.8L	(BK) Genesis Coupe 3.8L/(TG) Azera 3.8L/(EN) Veracruz (EP) Entourage/(BH) Genesis Sedan 3.8L
Tau 4.6L	(BH) Genesis Sedan 4.6L

REQUIRED TOOLS

Torque Wrench (1/4" for small torque and 3/8" for medium torque values)
(OPTIONAL) Torque Angle Gauge

NOTE: Commercially available torque angle gauges such as the Snap-On (P/N TA360) can be used as an aid to determine the angular values.

Fig 1: Torque Angle Gauge

SERVICE INFORMATION

Always use fresh engine oil to coat the bolt threads and both sides of the washer of a torque-angle fastener.
Follow the loosening and tightening sequence specified in the applicable Shop Manual for the cylinder head bolts and the main bearing cap bolts.

CYLINDER HEAD BOLTS

ENGINE TYPE	TIGHTENING TORQUE
Alpha 1.6L	Initially tighten to 3.0 kgf.m (21.7 lbf.ft) + 90°, then loosen before retightening to 3.0 kgf.m (21.7 lbf.ft) + 90°
Beta 2.0L	M10 bolt: 2.5±0.2 kgf.m (18.1±1.45 lbf.ft) + 60~65° + 60~65° M12 bolt: 3.0±0.2 kgf.m (21.7±1.45 lbf.ft) + 60~65° + 60~65°
Theta 2.0L/2.4L	3.5±0.2 kgf.m (25.3±1.45 lbf.ft) + 90~95° + 90~95°
Mu 2.7L	2.5±0.2 kgf.m (18.1±1.45 lbf.ft) + 60±2° + 45±2°
Lambda 3.3L/3.8L	4.0±0.2 kgf.m (28.9±1.45 lbf.ft) + 120±2° + 90±2°
Tau 4.6L	3.5±0.2 kgf.m (25.3±1.45 lbf.ft) + 90±2° + 120±2°
IMPORTANT: Once a cylinder head bolt is removed, be sure to replace it with a new one.

MAIN BEARING CAP BOLTS

ENGINE TYPE	TIGHTENING TORQUE
Alpha 1.6L	Refer to TSB 02-20-002 or applicable shop manual.
Beta 2.0L	3.0±0.2 kgf.m (21.7±1.45 lbf.ft) + 60~64°
Theta 2.0L/2.4L	3.0±0.2 kgf.m (21.7±1.45 lbf.ft) + 120~125°
Mu 2.7L	M8 bolt: 1.6±0.3 kgf.m (11.6±2.17 lbf.ft)+ 90~95° M10 bolt: 3.0±0.3 kgf.m (21.7±2.17 lbf.ft) + 90~95°
Lambda 3.3L/3.8L	No.1~8 bolt: 5.0 kgf.m (36.2 lbf.ft) + 90° No.9~16 bolt: 2.0 kgf.m (14.5 lbf.ft) + 120°
Tau 4.6L	4.0±0.2 kgf.m (28.9±1.45 lbf.ft) + 120°
IMPORTANT: Once a main bearing cap bolt is removed, be sure to replace it with a new one.

CONNECTING ROD CAP BOLTS

ENGINE TYPE	TIGHTENING TORQUE
Alpha 1.6L	Refer to TSB 02-20-002 or applicable shop manual.
Beta 2.0L	Refer to TSB 02-20-002 or applicable shop manual.
Theta 2.0L/2.4L	2.0±0.2 kgf.m (14.5±1.45 lbf.ft) + 90±2°
Mu 2.7L	2.0±0.2 kgf.m (14.5±1.45 lbf.ft) + 90~94°
Lambda 3.3L/3.8L	2.0±0.2 kgf.m (14.5±1.45 lbf.ft) + 90±2°
Tau 4.6L	2.5±0.2 kgf.m (18.1±1.45 lbf.ft) + 100±2°
IMPORTANT: Once a connecting rod cap bolt is removed, be sure to replace it with a new one.