Racer8x

Started out with a simple timing chain and adjuster replacement only to find that the gear on the right side when looking at the motor from end on has several teeth that are worn badly.

This is the gear that has E marked on it, is that the EXHAUST while the A marked gear is the INTAKE?

Thanks in advance, still trying to find the best price on a replacement, but want to make sure I order the correct one!

jetta02awp

If the layout of the m271 is the same as the m111 (which I would suspect it is) then the drivers side cam would be the intake and the passenger side the exhaust

Racer8x

Thanks Jetta, I actually found this other post that had a WIS document. You are correct, passenger side is exhaust and drivers side is intake. pretty much makes sense given where the exhaust manifold is located!

https://mbworld.org/forums/c-class-w...placement.html

jetta02awp

I was going by the manifold placement on my car and I assumed that it was not changed on the m271

LILBENZ230

Expensive part? What year/mileage are you at?

Racer8x

Its a 2005 with 85k miles on it. I actually got the car about a month ago and had some time off from work and thought I would do a little maintenance on it. I heard the slight noise at startup and right away suspected the timing chain.

Dealers was around $900 for a single camshaft gear!!! I have found a few online places with the OEM part for $680 range so I will be making calls to them.

ncmudbug

It's early for a chain replacement, but since you're going to be working in that area, it might be a good idea to go ahead and change it so you don't have to worry about it for a LONG time.

LILBENZ230

85k and the teeth on the cam sprockets are worn off?

How does that even happen?

Racer8x

No idea, but I can say that I am not a happy camper about it. When I pulled the valve cover, the timing chain looked like it was in pretty good shape and I thought about not replacing it. Since I had the parts already I thought I better do it. Guess that was a good decision given the only way to know that the teeth were worn down was to have the chain off.

Locating the cam gear has proven to be a challenge, appears to only be a dealer item and has to be ordered from MB direct with none of the 3 local dealers near me stocking it.

LILBENZ230

Getmercedesparts.com has them for $637.50 each. I can't understand why they cost so damn much. Can you post up pics of what it looks like?

LILBENZ230

2710501147

Is this the part number? It shows as the "adjuster" that so many people had problems with. My car had both replaced in 2009 due to rattling.

Racer8x

Yes that is it. I found it with http://www.mymercedesparts.com for $634.

I also found the following information that was of value.

http://www.mbpartsworld.com/showAsse...sembly=1075622

C230 Sport Coup

That crazy money for a gear.
I have a leaking head gasket on the #4 cylinder which is common for M111.
While I have all the parts, it's probably less expensive to just swap the whole engine.
Ideally, get a wrecked 2002 Blue coupe, swap the engine and trans, and the rear hatch which is damaged for like 2 grand. I saw a complete engine on ebay with 6?K miles for like 1200.

Meanwhile I just keep driving it.

Blashbenz

Great info! Curious was the timing chain install pretty straight forward? Did you have to pull the new timing chain in by rotating the crank shaft or the cam shaft? Any special tools needed to keep the timing chain in place while you draw the new one in?

hahaitzmickey

Racer8x,

When you rotate your chain by hand to make sure it makes a complete rotation does it happen to jump at that right cam teeth? I'm stuck on that part putting things back on. I do notice on mine that the teeth are worn as well *driver side* I had to rebuild my block from valves to new adjuster and chain.