S-Prihadi

Joe,

When and if you are removing those injectors, may I suggest send it for testing and you get it cleaned and the piezo stack refresh while at it.
Read here : https://mbworld.org/forums/e-class-w...intenance.html

Porno Joe

Ok could use a quick sanity check here im confusing myself!

I got the car all apart last night no major issues

this morning I started putting in some new parts

i took out my old cam adjuster- this is right intake.

when I went to install the new one, its like the dowel pins for cam and timing mark are in a different spot than the original I took out?

here is a pic. I used white paint to mark timing mark on back.



timing mark at the bottom you can see cam alignment dowels aren’t in the same location. Is this normal to have to move cam? Am I over thinking it?

Porno Joe

Also to add. I turned the motor over by hand to check with paint mark lines and my adjuster was jumping. So is it slightly off because it was jumping?

Crito

I had an i7-6500U and it's literally a regular i7 cut in half, with just two cores. A more recent i5 would have four cores. It's an i7 in name only... like many Republicans. LOL

CaliBenzDriver

these 2 parts look really similar.
This VVT gear should last given good working oil pressure.

CaliBenzDriver

PJ be sure not to turn your crank without camshafts connected...

Timing is jumped when camshaft rotates forward. This is what good tensioners help prevent while VVT is unlocked.

Porno Joe

Spent all day double checking my timing.

I believe, when I disconnected everything to change intake cam adjuster, the exhaust cam moved so I was out of time.

I followed the WIS for checking thru the hall sensor holes and knew I was off- confirmed my exhaust cam moved. So I took it back apart rigged up some tools to lock my cams in time using the lines on the back. Bolted it together and checking thru the holes looks good to me. Even had my wife double check she agreed they look centered.

CaliBenzDriver

Nice team work! Aligning timing marks through sensor holes is

The last step is rotate crank manually to double-check for interferance.

S-Prihadi

No you are not over thinking, you just don't seems to realize that this is VVT mechanism able to do approx 40 degrees variable degree.
Sold new the VVT would be in locked position, which if for my engine M276 3.0 Turbo and is only a few degrees different to M276.9 3.5NA.... mine is at +33 degrees
On M276.9 3.5NA the difference is only like 3 degrees to my engine.

So, what you have is a VVT not locking at its home base or zero position, and you are comparing it to a new one "parked" at its "zero" position.

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Now that you have access to your camshaft, do check your tone wheel position. It can spin out of position.



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This tone wheel being OFF can also create the DTC for out of spec timing between CAM and CRANK.

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