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JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 15758
Experience:  ase tech
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Im replacing a timing chain 0n a 2005 Silverado 4.3 v6 my

Customer Question

im replacing a timing chain 0n a 2005 Silverado 4.3 v6 my book says to put it at tdc on #4 cyl and none of the a marks are even close to aligning how can I start from scratch to time this truck
Submitted: 1 year ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 1 year ago.

did you line up the marks prior to teardown?

Customer: replied 1 year ago.
I did for number 4 at tdc but nothing lines up inside so Im not really trusting I did it right
Expert:  JOHN aka Eauto replied 1 year ago.

the first step to line the timing gear marks up did you do that as in the attached pic?

Customer: replied 1 year ago.
right now my key on the crank is at 6 o clock and the cam got moved after the chain got removed but was pointing at 10 now it is at 6
Expert:  JOHN aka Eauto replied 1 year ago.
  1. Rotate the camshaft so that the timing mark on the balance shaft drive gear is in the 12 o'clock position.Rotate the balance shaft so that the timing mark on the balance shaft driven gear is in the 6 o'clock position
  2.  

  3. Position the balance shaft drive gear onto the engine camshaft.
  4. Look to ensure that the balance shaft drive gear and the balance shaft driven gear timing marks are aligned.
  5. Install the timing chain and the camshaft sprocket.
  6. Install the valve lifter pushrod guide.
Customer: replied 1 year ago.
my cam gears are ligned up and now the arrow on my timing sprocket are pointed at 6 o clock but the crank gear is also pointing at 6 as well my book shows to be at 12?
Expert:  JOHN aka Eauto replied 1 year ago.

your 180 off

Customer: replied 1 year ago.
can I rotate without any interference and how can I verify #4 tdc
Expert:  JOHN aka Eauto replied 1 year ago.

you sure #4 Is on compression stroke?

Expert:  JOHN aka Eauto replied 1 year ago.

should befine to rotate as long as you feel no binding

Customer: replied 1 year ago.
to the best of my knowledge felt air pressure then rotated clock ways until timing marks line up
Expert:  JOHN aka Eauto replied 1 year ago.

likely was not at tdc

Customer: replied 1 year ago.
ok now all of the alignment marks are where they are supposed to be but now if I install my balancer the marks are pointing at the passenger fender . it is a two piece is it possible it slipped is there a way to clock them?
Expert:  JOHN aka Eauto replied 1 year ago.

can you attach a pic?

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