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How do i set the timing marks on a 3.4 liter engine

How do i set the timing marks

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  • Chevrolet Master
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3.4L Engine Fig. 7: View of the timing chain and related components with the front cover removed — 3.4L engine how do i set the  timing marks on a 3.4 liter engi - 88003gb7.gif
Fig. 8: Retract the timing chain tensioner 88003gb8.gif
Fig. 9: The special tools must be used . . . 88003gb9.gif
Fig. 10: . . . to remove the timing chain, crankshaft sprocket and intermediatehow do i set the timing marks on a 3.4 liter engi - 88003gc1.gifket 88003gc1.gif
Fig. 11: Slide thhow do i set the timing marks on a 3.4 liter engi - 88003gc3.gifnd chain on the shafts, maintaining the proper alignment 88003gc3.gif88003gc4.gif

  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.

Posted on Jul 09, 2010

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Posted on Jan 02, 2017

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SOURCE: timing mark-specs

ADVISE YOU NOT TO TOUCH THIS UNLESS UR MECHANILLY COMPENENT YOU NEED SPECIAL TIMING PINS & BAR FOR THIS & ARE NOT THE EASIEST TO TIME UP.

Posted on Jan 14, 2009

  • 6982 Answers

SOURCE: timing chain mark diagram for a 94 grand am????

Haynes lists the entire procedure for setting the position of the cams etc. Positioning of these is critical...If off by even a slight amount the valves WILL strike the pistons and destroy the engine. DO NOT use any parts made by SA Gear...They have no quality control and will deny any claim made against them. Make sure that the chain guides are in good condition and that the chain tensioner is operating properly.

Posted on Apr 15, 2009

  • 23 Answers

SOURCE: Timing belt specification.

The 1.6l is an interference engine and if the timing belt let loose there is a good chance the pistons met the valves and bent them. I'm thinking that you have a compresson problem either caused by bent valves or having the camshaft out of time with the crank.this link seems to be the best description of where the marks need to be I hope it helps http://honda-tech.com/showthread.php?t=1042236&highlight=d16z6+timing+marks+

Posted on Feb 08, 2010

  • 302 Answers

SOURCE: need timing marks for 88 dodge ram 50 2.6 liter engine

the camshaft and crankshaft has a small dot on them they go dot to dot
with the crankshaft dot being at 12:00 o clock and camshaft dot at 6:00 o clock

Posted on Jun 23, 2010

jturcotte
  • 8269 Answers

SOURCE: Need to find out the proper timing marks for the

the little dots line up with the part of the timing cover surface that points inward.

jturcotte_2402.gif


jturcotte_2403.gif

jturcotte_2401.gif

Posted on Oct 15, 2011

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