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Old 06-04-2013, 09:10 AM   #1
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I just noticed that the cam shaft/tensioner/chain assembly I removed from the 4-6 head does not have the color coded links lined up with the index dots on the gears. Did I remove the 4-6 cams with having 1-3 on TDC exhaust? Seems like I am a cycle out. Should I carefully spin the engine and guide the chain and gear that are just sitting for the 4-6 head until I reach TDC for the other side since that is not apart? Whats the safest way to retime this engine now that I have it apart, and what seems to be out of sequence?
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Old 06-04-2013, 09:38 AM   #2
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Originally Posted by Wilson01S View Post
I just noticed that the cam shaft/tensioner/chain assembly I removed from the 4-6 head does not have the color coded links lined up with the index dots on the gears. Did I remove the 4-6 cams with having 1-3 on TDC exhaust? Seems like I am a cycle out. Should I carefully spin the engine and guide the chain and gear that are just sitting for the 4-6 head until I reach TDC for the other side since that is not apart? Whats the safest way to retime this engine now that I have it apart, and what seems to be out of sequence?

There is a 50% chance you are 360 degrees off for setting 4-6cyl cam timing. To verify remove the 1-3cyl green cam plugs to visually verify 1-3cyl cams are timed right. If the 1-3 cams are correct for TDC then 4-6 bank is 360 degrees off & you need to turn engine 1 revolution CLOCKWISE back to TDC. 1-3cyl cam notches will now be upside down & 4-6 cams are ready for install & timing.
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Old 06-04-2013, 10:42 AM   #3
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There is a 50% chance you are 360 degrees off for setting 4-6cyl cam timing. To verify remove the 1-3cyl green cam plugs to visually verify 1-3cyl cams are timed right. If the 1-3 cams are correct for TDC then 4-6 bank is 360 degrees off & you need to turn engine 1 revolution CLOCKWISE back to TDC. 1-3cyl cam notches will now be upside down & 4-6 cams are ready for install & timing.
Ok great, Thanks again. Thats what I was thinking. I'm 99% sure 1-3 is TDC right now, and 4-6 are 360 out.
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Old 06-04-2013, 01:17 PM   #4
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This is the tensioner below the A/C compressor.

Does that seem to be a bad wear pattern on the side? It is only worn on one side.
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Old 06-12-2013, 09:02 AM   #5
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Originally Posted by BYprodriver View Post
There is a 50% chance you are 360 degrees off for setting 4-6cyl cam timing. To verify remove the 1-3cyl green cam plugs to visually verify 1-3cyl cams are timed right. If the 1-3 cams are correct for TDC then 4-6 bank is 360 degrees off & you need to turn engine 1 revolution CLOCKWISE back to TDC. 1-3cyl cam notches will now be upside down & 4-6 cams are ready for install & timing.
Is there a safe way to turn this engine over without having the cylinder 4-6 cams installed? I can hold the chain and sprocket while someone turns the engine over for me, but I do not want to over pressurize cylinders since all 12 valves will be closed
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