How hard is it to set the correct timing once it has jumped on a '95 Olds Cutlass Supreme 3.4L. Belt is off.

A pully failed, and my timing belt wore past the tensionor, which aloud the belt to slip and jump time. I have removed the old belt, replaced the bad part, and now i need to replace the belt and re-time the motor. Not sure if I have to set the timing marks togather on the overhead cams, and then how do i find TDC? I have never done a motor like this before.How hard is it to set the correct timing once it has jumped on a '95 Olds Cutlass Supreme 3.4L. Belt is off.http://www.autozone.com/

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Look in to these, they should help.How hard is it to set the correct timing once it has jumped on a '95 Olds Cutlass Supreme 3.4L. Belt is off.GENERAL MOTORS

3.4L V6

MANUFACTURER'S SUGGESTED SCHEDULED MAINTENANCE



The manufacturer recommends the belt be replaced at 60,000 mile intervals.



CAUTION: For 1996-97 models, this application is an interference engine. Do not rotate camshaft or crankshaft when timing belt is removed, or engine damage may occur.

REMOVAL %26amp; INSTALLATION

TIMING BELT

Removal



1. Disconnect negative battery cable. Remove air cleaner and duct assembly. Drain engine coolant.

2. Remove accelerator and cruise control cables from throttle body. Remove fuel rail cover. Relieve fuel pressure. Remove fuel lines from fuel rail. Remove fuel mounting bracket.

3. Remove heater hose and bracket from lower intake manifold. Remove PCV valve and vacuum line from throttle body. Remove electrical connectors from EGR valve, canister purge solenoid and MAP sensor. Remove vacuum lines from upper intake manifold tee.

4. Remove wiring loom bracket for rear spark plug wires. Remove upper intake manifold. Remove coolant recovery tank. Remove serpentine drive belt and drive belt tensioner.

5. Siphon fluid from power steering pump. Disconnect power steering lines and remove power steering pump.

6. On 1991-93 vehicles only, reposition Powertrain Control Module (PCM) out of way. Remove PCM mounting bracket. On 1994-95 vehicles only, disconnect PCM connectors and secure out of way.

7. On all vehicles, note position for reassembly reference and remove spark plug wires from spark plugs. Remove wiring harness cover at right side (passenger) strut tower. Remove fuel line bracket.

8. Remove timing belt covers. Remove breather hose from rear camshaft cover and crankcase vent from breather manifold. Remove camshaft carrier covers.

9.



NOTE: Actuator assembly uses a tapered bushing between the actuator and mounting base. DO NOT lose or damage the bushing when removing the actuator assembly.

Remove side plate bolts securing timing belt tensioner actuator. Rotate actuator assembly from tensioner pulley socket and out of mounting base. Remove timing belt tensioner pulley. See Fig. 1 .

10. Position timing belt tensioner actuator in vise with rod tip (rubber boot end) pointing down.

11.



CAUTION: Allow oil to flow towards boot end of actuator for at least 5 minutes prior to refilling.



NOTE: Tensioner actuator is oil filled. Removal of plug may allow oil to escape. DO NOT remove vent plug.

Straighten out a standard paper clip (.032%26quot; with no serrations) and form a loop at one end. See Fig. 2. Remove rubber end plug from rear of tensioner actuator. Push paper clip through end of vent plug and into pilot hole. Insert a small screwdriver into the screw slot inside actuator, behind rubber end plug.

12. Retract actuator plunger by rotating screw in a clockwise direction until it is fully retracted. Push on paper clip and slowly rotate screw counterclockwise until paper clip engages. Remove timing belt.

13.



NOTE: Remove timing marks from camshaft and intermediate shaft sprockets.

Rotate crankshaft so that No. 1 cylinder is at TDC of compression stroke. Mark the timing indicator with White paint or equivalent on the crankshaft balancer and front cover. See Fig. 3 .

14. Position camshafts so that flat spots are %26quot;UP%26quot; for installation of Camshaft Hold-Down Tools (J 38613-A). Install Camshaft Hold-Down Tools (J 38613-A) on both camshaft carriers. See Fig. 4 .

15. Remove camshaft sprocket center bolts. Note difference between early and late designs. See Fig. 5 . Lightly tap on rear of sprockets to remove from camshaft.



Fig. 1: Identifying Timing Belt Assembly Components

Courtesy of GENERAL MOTORS CORP.



Fig. 2: Reworking Paper Clip

Courtesy of GENERAL MOTORS CORP.



Fig. 3: Aligning Timing Marks

Courtesy of GENERAL MOTORS CORP.



Fig. 4: Installing Camshaft Hold-Down Tools (J 38613-A)

Courtesy of GENERAL MOTORS CORP.



Fig. 5: Identifying Camshaft Timing Sprocket Designs

Courtesy of GENERAL MOTORS CORP.

Inspection



1. To determine if timing belt length is within specifications, measure tensioner actuator from centerline of tensioner actuator to end of rubber boot. See Fig. 6. If measurement is 3.2-3.7%26quot; (80.5-94.0 mm) for a used belt, the belt is in acceptable range. Replace belt is measurement is more than 3.7%26quot; (94 mm).

2. Inspect belt teeth and back side of belt for cracks, tears or other damage. Inspect components for excessive wear or unusual conditions. Note any evidence of oil or other fluid intrusion.



Fig. 6: Measuring Timing Belt Tensioner Actuator Length

Courtesy of GENERAL MOTORS CORP.

Installation



1. Install camshaft sprockets with bolts and locks. Tighten bolts finger tight. Install timing belt onto camshaft sprockets in a counterclockwise direction. Continue installing timing belt, making sure timing belt teeth are fully engaged with all sprockets.

2. Install timing belt tensioner pulley. Tighten timing belt tensioner pulley bolt to 37 ft. lbs. (50 N.m).

3.



NOTE: If tensioner oil has been lost, fill tensioner with Mobil 1 SAE 5W-30 synthetic engine oii through plug hole. Fill to bottom of plug hole only when plunger is fully retracted and pin is installed.

Install rubber end plug in rear of tensioner assembly until flush. Ensure plug is sealed against case.

4.



NOTE: Ensure actuator bushings and appropriate holes in side plate are clean. DO NOT lubricate bushings.

Install actuator bushing into side plate. Install timing belt actuator and actuator side plate. Tighten side plate bolt to 20 ft. lbs. (27 N.m).

5. Rotate pulley assembly into timing belt a maximum of 11 ft. lbs. (15 N.m) to allow engagement of actuator shaft into pulley pocket arm socket. Pull the paper clip from the actuator. Retighten pulley assembly counterclockwise to seat pulley into belt.

6. Tighten both right hand camshaft sprockets (bank closest to firewall) to 96 ft. lbs. (130 N.m). Remove camshaft hold-down from right hand camshaft carrier.

7. Rotate crankshaft one full turn (360 degrees) clockwise, as viewed from front of engine. Align crankshaft reference marks. See Fig. 3. Make sure both right hand camshaft flat spots are down. Tighten both left hand camshaft sprockets (bank closest to radiator) to 96 ft. lbs. (130 N.m). Remove camshaft hold-down from left hand camshaft carrier.

8. Rotate engine clockwise (as viewed from front) 2 times to seat belt and verify correct valve timing. DO NOT reverse rotation. Make sure both camshaft flat spots are up on one bank and down on opposing bank.

9. Install camshaft carrier covers. Install breather hose and crankcase vent onto rear cover. Install timing belt covers.

10. To complete installation, reverse removal procedure. Refill cooling system with 50/50 mix of water and coolant. Open air bleed valve on thermostat housing while filling cooling system. Adjust drive belts to proper tension.



TORQUE SPECIFICATIONS



TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)

Camshaft Sprocket Bolt 96 (130)

Crankshaft Balancer Bolt 79 (107)

Crankshaft Pulley Bolt 37 (50)

EGR Valve Bolts 18 (25)

Front Cover Bolts

Large Bolts 35 (47)

Small Bolts 18 (25)

Intermediate Shaft Belt Sprocket Bolt 96 (130)

Serpentine Belt Tensioner Bolt 33 (45)

Timing Belt Actuator Side Plate Bolt 20 (27)

Timing Belt Tensioner Pulley Bolt 37 (50)

Timing Chain Tensioner Bolt 18 (25)

Upper Intake Manifold Bolts %26amp; Nuts 22 (27)

INCH Lbs. (N.m)

Camshaft Carrier Cover Bolts 97 (11)

Timing Belt Cover Bolts 89 (10)

Water Pump Bolt 97 (11)

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