237316108 MINI Cooper Cooper S Clubman R55 R56 R57 Service Manual 2007 2013 Excerpt Vanos units removing and installing N12 N16 N18 engine PDF

Preview

Summary

MINI MANUAL R55 R56 R57...

Description

Camshaft Timing Chain 117-19 VANOS units, removing and installing (N12, N16, N18 engine)

 Intake camshaft VANOS solenoid valve: • Disconnect electrical connector (A).

117

• Remove fastener (B). • Remove solenoid valve (C). If necessary, valves can be rotated in cylinder head to aid in removal and installation.

 Exhaust camshaft VANOS solenoid valve: • Disconnect electrical connector. • Remove fastener (A). • Remove solenoid valve (B). If necessary, valves can be rotated in cylinder head to aid in removal and installation.

–

Installation is the reverse of removal, making sure of the following: • Replace O-ring and coat lightly with oil. dirt.

VANOS solenoid to cylinder head (replace sealing O-ring)

9 Nm (7 ft-lb)

VANOS units, removing and installing (N12, N16, N18 engine) Engine timing is adjusted when pistons are locked in 90° position. This is an updated procedure that eliminates using top dead center (TDC) when setting camshaft and crankshaft correlation. Special tools and procedures are required to remove and install VANOS units and to time camshafts. WARNING — • To avoid personal injury, be sure engine is cold before beginning the procedure. CAUTION— • Disassembly, removal and assembly of camshafts or VANOS units without special tools poses the risk of damage: Valves may be bent by contact with the piston crowns. • Throughout this procedure, unless otherwise specified, crankshaft and camshafts remain locked against rotation using MINI special tools.

–

Check camshaft timing. See Camshaft timing, adjusting in this repair group.

117-20

Camshaft Timing Chain

VANOS units, removing and installing (N12, N16, N18 engine) VANOS units, removing

–

Switch ignition OFF and remove key.

–

Disconnect negative (–) cable from battery. CAUTION— • Prior to disconnecting the battery, read the battery disconnection cautions in 001 Warnings and Cautions.

–

Raise vehicle and support safely. WARNING — • Make sure vehicle is stable and well supported at all times. Use a professional automotive lift or jack stands. A floor jack is not adequate support.

–

Remove ignition coil cover. See 020 Maintenance.

–

Remove spark plugs. See 020 Maintenance.

–

Remove cylinder head cover. See 113 Cylinder Head Removal and Installation.

 Using MINI special tool 11 9 590, secure crankshaft in 90° piston ire repair process.

aligning engine can be mixed up. Verify engine is in 90° position by viewing piston position through spark plug hole.

 Remove fasteners (A), then remove timing chain slide rail (arrow).

Camshaft Timing Chain 117-21 VANOS units, removing and installing (N12, N16, N18 engine)

 N12, N16 engine: Using MINI special tool 11 9 540, lock camshafts

117

in 90° piston position. Tighten down tool with supplied fasteners (A). Tool remains in place during entire repair process.

 N18 engine: Using MINI special tool 11 7 440, lock camshafts in

90° piston position. Secure with supplied fasteners (A). Tool remains in place during entire repair process

 Remove timing chain tensioner (A). Be prepared to catch any dripping oil in a shop towel.

117-22

Camshaft Timing Chain

VANOS units, removing and installing (N12, N16, N18 engine)

 Working at right side front of cylinder head, remove timing chain guide rail bearing bolt (arrow).

 Working at front of camshafts: • Loosen and remove exhaust and intake VANOS unit mounting fasteners (arrows). Discard fasteners. • Disengage timing chain from camshaft adjustment unit sprockets.

–

Remove intake VANOS unit (A).

–

 VANOS units can be mixed up. Check markings prior to installation. • Intake VANOS unit marked IN. • Exhaust VANOS unit marked EX.

Camshaft Timing Chain 117-23 VANOS units, removing and installing (N12, N16, N18 engine) VANOS units, installing

 Use new bolt (A) to reattach exhaust VANOS unit (B). VANOS unit may be installed in any position initially. Finger-tighten mounting bolts for now.

Install timing chain on exhaust VANOS unit (B).

117

–

 Use new bolt (A) to reattach intake VANOS unit (B). VANOS unit may be installed in any position initially. Finger-tighten mounting bolts (A, C) for now.

–

Install timing chain on intake VANOS unit

 Install timing chain slide rail (arrow) and torque fasteners (A). Tightening torque Timing chain guide rail to cylinder head M8 (replace seal)

20 Nm (14.7 ft-lb)

117-24

Camshaft Timing Chain

VANOS units, removing and installing (N12, N16, N18 engine)

 Install MINI special tool 11 9 340 in timing chain tensioner mounting hole and pretension timing chain to 0.6 Nm (5.3 in-lb).

 Using a torque wrench and angle protractor, torque intake VANOS unit fastener (A).

Tightening torque VANOS unit to camshaft (use new fastener) • Stage 1 • Stage 2

20 Nm (15 ft-lb) additional 180°

 Using a torque wrench and angle protractor, torque exhaust VANOS unit fastener (A).

Tightening torque VANOS unit to camshaft (use new fastener) • Stage 1 • Stage 2

–

20 Nm (15 ft-lb) additional 180°

Remove dummy tensioner and install timing chain tensioner. Use new seal. Tightening torque Timing chain tensioner to cylinder head M22 x 1.5 (replace seal)

65 Nm (48 ft-lb)

–

Check camshaft timing. See Camshaft timing, adjusting in this repair group.

–

Reassemble engine. CAUTION— • Be sure to remove crankshaft and camshaft locking tools before rotating or starting engine.

established 1950 Automotive Reference™

BentleyPublishers .com

MINI Cooper (R55, R56, R57) Service Manual: 2007-2013 Cooper, Cooper S, John Cooper Works (JSW) including Clubman and Convertible Price: $139.95 Bentley Stock Number: BM13 Publication Date: 2014.10.01 ISBN: 978-0-8376-1730-5 Hardcover, 8 3/8 in. x 11 in. Case quantity: 5 1064 pages, 1845 photos, illustrations and diagrams Includes color MINI Cooper familiarization section The MINI Cooper Service Manual: 2007-2013 is a comprehensive source of service information and specifications for MINI Cooper models from 2007 to 2013 (Mk II). The aim throughout this manual has been simplicity, clarity and completeness, with practical explanations, step-by-step procedures and accurate specifications. Whether you’re a professional or a do-it-yourself MINI owner, this manual will help you understand, care for and repair your car. Step-by-step instructions for resetting CBS service items. 020 Maintenance

Features:

system. This manual tells you what to do and how and when to do it.

High pressure fuel system service on turbo engine, including replacing HP fuel pump. 160 Fuel Tank and Fuel Pump

seal replacement and external service. Detailed engine service, including VANOS camshaft timing adjustment. 117 Camshaft Timing Chain

component replacement. Models & engines covered: Cooper:

component section with detailed illustrations and photos.

Cooper S:

1.6 liter normally aspirated engine (engine codes N12, N16) 1.6 liter supercharged engine (engine codes N14, N18)

Transmissions covered: Manual: Automatic:

6-speed Getrag (GS6-55BG for Cooper, GS6-53BG for Cooper S) 6-speed with Agitronic, Aisin (GA6F21WA)

Bentley Publishers, 1734 Massachusetts Avenue, Cambridge, MA 02138-18 04 USA http://www.bentleypublishers.com/contact-us bentley_bm13_new.product.announcement.pdf...