Camshaft/Timing

TRIPP3988

MEMBER
2019 DODGE CHARGER
3.6L
V6
2WD
AUTOMATIC
68,000 MILES

I was doing a lifter and rocker arm replacement on bank 1. After putting everything back together I started the engine and heard a loud ticking/knocking noise worse than before. I shut it off and realized that I mistakenly tightened the oil control valve without the cam phaser block tool in place and turned the cam phasers and cam. Bank 2 was not touched at that time. Could that affect the timing?

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Just to confirm the bank 1 you are looking at is the passenger side, correct?

If you do not lock the cam when installing the phaser, then you are going to turn the cam when you tighten it.

https://www.2carpros.com/articles/how-camshaft-variable-valve-timing-works

If this happens then the timing can be off and as the PCM adjusts the phaser incorrectly or not enough and the engine will knock and set codes most likely cam/crank correlation codes.

So, the first thing to do is check for codes now that you ran the engine and see what is there.

However, more than likely we are going to have to try and redo the repair and see if when you lock the cam, and the engine is in time that the noise goes away.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Let us know what codes are there and we can go from there.

Thanks

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Monday, May 23rd, 2022 AT 4:41 PM

TRIPP3988

MEMBER
2 POSTS

Yes, the passenger side is correct. I'm pretty sure the cam and cam phaser turned slightly towards bank 2 while tightening the cam phaser to torque specs even though timing chain was still connected. I have checked and currently there is no check engine light, does that mean no codes necessarily or do I need to have a check ran on the system anyway? I also have a video of the loud ticking if that would help.

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Monday, May 23rd, 2022 AT 7:15 PM

KASEKENNY

MECHANIC
18,907 POSTS

Oh yes. More than likely you will set a code but that is most likely the phaser banging against the lock pin.

If you have a scan tool you can monitor the cam crank sync state and see if they are out.

I know this data is in the OEM scan tool under OBD monitors but I am not sure about aftermarket tools.

Clearly that could be a bearing noise but based on what happened, I would start with the phaser.

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Tuesday, May 24th, 2022 AT 7:25 AM