IMS timing question

[piper6909]

If the chains have marked links, it's probably to help you during chain installation. I.e. so you don't have to count the links between the sprockets. Timing belts have marks that line up with marks on the sprockets, so you don't have to count teeth. Maybe these chains do too?

I'm surprised no one on here who actually takes these motors apart has chimed in yet. But, like others who have replied, I believe the IMS sprockets are not timed.

[Gilles]

Originally Posted by piper6909

If the chains have marked links, it's probably to help you during chain installation.
Yes, the timing chain has one link with a different color that you are supposed to align with the dot on the sprocket

I am really sorry, I did not put attention and assumed that the picture was from one of the Cam Sprockets...
.

[maytag]

Originally Posted by Gilles

Yes, the timing chain has one link with a different color that you are supposed to align with the dot on the sprocket

Interesting.
What purpose does that serve? What is it "timing" that way?

[Homeoboxter]

Originally Posted by Gilles

Yes, the timing chain has one link with a different color that you are supposed to align with the dot on the sprocket

Apart from the two small chains in the heads, I don`t remember seeing any other chain marked, but I`ll take a second look.