Need Help?

1977 Pontiac Lemans Base

1977 Pontiac Lemans
Do you own this car?
Estimated Mileage
 Miles
Enter current mileage for most
accurate info about this vehicle


Track Your Service Records
Get Recall Alerts
Get Updated Value Estimates on Your Car.

back to question list

Ask the Community

Ask Our Auto Mechanics


October 30, 2009, 11:37 am

Anne M
 

Question: What are the settings/specs for changing the timing belt

what are the specs/ settings for changing the timing belt on a 93 pontiac lemans 1.6 l


November 6, 2009, 11:32 am

Tyler O
Expert Mechanic

From the manual:

CRANKSHAFT PULLEY

Remove or disconnect

1. Negative (-) battery cable.
- Loosen generator upper and lower mounting bolts.

2. Serpentine drive belt from generator and power steering pump pulleys (if equipped).
- Raise and suitably support vehicle.

3. Right-side splash shield.
- Loosen A/C compressor upper and lower mounting bolts (if equipped).

4. A/C compressor drive belt from crankshaft and compressor pulleys (if equipped).

5. Serpentine drive belt from crankshaft pulley.

6. One bolt and crankshaft pulley from crankshaft.

Install or Connect

1. Crankshaft pulley to crankshaft; secure with one bolt.
- Tighten Crankshaft pulley retaining bolt to 55 N.m. (41 lb.ft.).

2. Serpentine drive belt to crankshaft pulley.

3. A/C compressor drive belt to crankshaft and compressor pulleys (if equipped).
- Reposition A/C compressor and tighten upper and lower mounting bolts (if
equipped).

- Tighten A/C compressor upper and lower mounting bolts to 25 N.m. (18 lb.ft.).

4. Right-side splash shield. Lower vehicle.

5. Serpentine drive belt to generator and power steering pump pulleys (if equipped).
- Reposition generator and tighten upper and lower mounting bolts.

- Tighten Generator upper and lower mounting nuts and bolts to 25 N.m. (18
lb.ft.).

6. Negative (-) battery cable.

TIMING BELT FRONT COVERS

Remove or Disconnect

1. Negative (-) battery cable.
- Loosen generator upper and lower mounting bolts.

2. Serpentine drive belt from generator and power steering pump pulleys (if equipped).

3. Three bolts and power steering pump pulley (if equipped).

4. Two bolts retaining power steering pump (if equipped).

5. Three bolts and upper timing belt front cover.
- Raise and suitably support vehicle.

6. Right-side splash shield.
- Loosen A/C compressor upper and lower mounting bolts (if equipped).

7. A/C compressor drive belt from crankshaft pulley (if equipped).

8. Serpentine drive belt from crankshaft pulley.

9. One bolt and crankshaft pulley from crankshaft.

10. Three bolts and lower timing belt front covers.

Install or Connect

1. Lower timing belt front covers; secure with three bolts.

- Tighten Lower timing belt front cover bolts to 8 N.m. (71 lb.in.).

2. Crankshaft pulley to crankshaft; secure with one bolt.

- Tighten Crankshaft pulley retaining bolt to 55 N.m. (40 lb.ft.).

3. Serpentine drive belt to crankshaft pulley.

4. A/C compressor drive belt to crankshaft pulley (if equipped).
- Reposition A/C compressor; secure with upper and lower mounting bolts (if
equipped).

- Tighten A/C compressor upper and lower mounting bolts to 25 N.m. (18 lb.ft.).

5. Right-side splash shield.
- Lower vehicle.

6. Upper timing belt front cover; secure with three bolts.

- Tighten Upper timing belt front cover bolts to 8 N.m. (71 lb.in.).
- Reposition power steering pump; secure with two bolts (if equipped).
- Tighten Power steering pump bolts to 25 N.m. (18 lb.ft.).

7. Power steering pump pulley to pump; secure with three bolts (if equipped).

- Tighten Power steering pump pulley bolts to 27 N.m. (20 lb.ft.).

8. Serpentine drive belt to generator and power steering pump pulleys (if equipped).
- Reposition generator; secure with upper and lower mounting bolts.

- Tighten Generator upper and lower mounting nuts and bolts to 25 N.m. (18
lb.ft.).

9. Negative (-) battery cable.

TIMING BELT

Remove or Disconnect

1. Negative (-) battery cable.

2. Upper timing belt front cover.

3. Power steering pump (if equipped).
- Raise and suitably support vehicle.

4. Right-side splash shield.
- Align timing marks on crankshaft pulley with indicator on lower timing belt cover
(Figure 15).

5. Lower timing belt front cover.
- Release timing belt tension and remove timing belt from crankshaft.
- Lower vehicle.

6. Timing belt from engine.

Install or Connect

Important: Ensure camshaft timing mark is in the 12 o'clock position before a new timing
belt is installed (Figure 15).

1. Timing belt onto engine.
- Raise and suitably support vehicle.
- Pull back timing belt tensioner and install timing belt onto crankshaft timing
sprocket.

2. Lower timing belt front covers.

3. Right-side splash shield.
- Lower vehicle.

4. Power steering pump (if equipped).

5. Upper timing belt front cover.

6. Negative (-) battery cable.


0/0 users found this helpful.

Ask our panel of certified auto mechanics a question. We pay for their advice so you don't have to



My Auto Score

See the free AutoCheck score

Meet The Experts
Kim Perrin
Kim Perrin is our resident mechanic here at DriverSide. Kim worked as…
Tyler Orr
Tyler Orr is an expert in German and Japanese cars and has been a mechanic …
Elizabeth Kriesten
Elizabeth Kriesten worked as an automotive technician for several years at Dodge…
Tips on Servicing

Car Brakes: How Do You Know When to Change Them?

By Zach Bowman For those who suffer a daily commute through heavy traffic, your vehicle's braking system can bring thousands of pounds of metal, plastic and empty Starbucks cups to a stop hundreds of times before you get to work. It goes without saying that these pieces wear out, but they do so slowly, meaning you may not notice they need attention until ...

Read more…