Where are the timing marks for a 5.3 liter Chevy engine

Duane Wong

• 6826 Answers
• Posted on Jul 09, 2010

SOURCE: how do i set the timing marks on a 3.4 liter engine

3.4L Engine Fig. 7: View of the timing chain and related components with the front cover removed — 3.4L engine
Fig. 8: Retract the timing chain tensioner
Fig. 9: The special tools must be used . . .
Fig. 10: . . . to remove the timing chain, crankshaft sprocket and intermediate shaft sprocket
Fig. 11: Slide the sprocket and chain on the shafts, maintaining the proper alignment
Fig. 12: The crankshaft sprocket must be pressed on to specifications using a special tool

1. Disconnect the negative battery cable.
2. Raise and safely support the vehicle.
3. For 1991 vehicles, perform the following:
   1. Remove the starter motor and flywheel cover.
   2. Remove oil pan retaining nuts and bolts. Remove lower frame and powertrain onto transmission table.
4. Remove the front cover, as outlined earlier this section.
5. Matchmark the intermediate sprocket, chain link, front face of cylinder and crank sprocket for reference.
6. Retract the timing chain tensioner shoe by using J–33875 or equivalent, on both sides of the tensioner and pulling on the thru pin in the tensioner arm to retract the spring. While spring is retracted, insert a holding tool to hold it.
7. Remove the timing chain tensioner retaining bolts.
8. Raise and safely support the vehicle.
9. Remove the timing chain, crankshaft sprocket and intermediate sprocket using tools J 8433 and J 28611, as shown in the accompanying figure. If the intermediate gear does not slide off easily with the timing chain assembly, rotate the crankshaft back and forth to loosen the tight fit.
10. If necessary, remove the timing chain tensioner. To install:
    
11. Check to ensure that crankshaft key is installed and fully seated and the chain tensioner is fully installed and blade retracted.
12. Slip both sprockets and chain over the proper shaft and engage the slot in the key. The intermediate shaft may move against the rear cover. Slide the sprocket and chain on the shafts, maintaining the proper alignment shown in the accompanying figure. While installing note the following:
    1. Make sure the rubber and tension blade of the tensioner does not become caught, misaligned, or dislodged.
    2. The large chamfer and counterbore of the crankshaft sprocket are installed towards the crankshaft. The intermediate sprocket spline sockets are installed away from the case.
    3. The crankshaft sprocket must be pressed on for the final 0.31 in. (8mm) to the seated position using tool J38612 or equivalent, as shown in the accompanying figure.
    4. Check to make sure timing was maintained. Remove the retaining pin from tensioner.
13. For 1991 vehicles, install the oil pan retaining nuts and bolts, and the flywheel cover and starter.
14. Install the front cover, as outlined earlier in this section.
15. Connect the negative battery cable. Start the engine and check for leaks.

SOURCE: No timeing marks on a chevy 383 stroker engine

you could bring it up on tdc on comp stroke and make your own mark on crank pulley and block then at least you know where tdc is and google some 383's that have close to same equip as you and see what degree they are running or just play with it and see how it runs .

joecoolvette

• 5660 Answers
• Posted on Jul 21, 2009

SOURCE: need timing marks for Daewoo engine in Chevy Aveo

The crankshaft gear has a triangle timing mark on it. On the outside of the gear near the teeth. This points straight down, and lines up with a notch, on the bottom of the rear timing cover.

The camshafts have a mark on the outside of the gear, near the teeth. The camshafts are turned, so that the marks are to the inside, (in-between the gears), and the marks point to each other.