Pit-Pony

I read elsewhere there are possible problems with the cams.

There was a thread here at some point but it's now gone.

I'm not trying to cause a stir but if there is any concern we should find out more definitively as part of the enthusiast community here.

gthal

If the thread that you read which is now deleted was Jeffield's, he didn't provide a reason for the engine failure and I don't believe was told what the issue was. The thread was removed at his request for personal and smart reasons .

Pit-Pony

No , there was another referring to a lawsuit, you know the one.

I would sure like to know how many engines failed, if any besideds the folks that may have tuned or modified. I'm not concerned with those necessarily unless they are a leading indicator.

CELLryuu

https://mbworld.org/forums/c63-amg-w...on-thread.html

C63newdude

Saying that the cam wears out is very absurd and very unlike. There are just less than hal dozen people with C63 with more than 60-70,000 miles. I find one trillion chances to have the cams wear out so early. You can have the biggest POS cars made in this planet, cars with one million miles and not have cams worn out.

I AMG actually put soft materials on the cam then you can say that they are the biffest underengineer on the planet. Cams don't wear out enough to cause any issues.

Sincity

I thought the claim was the lifters wearing prematurely and not the cams?

Cylinder Head

iTrader: (1)

This. Supposedly a bad metallurgy match between cams and lifters. I think it was just out-of-spec parts or Hans had one too many Weissens at lunch.

Merc63

I got 50,000 HARD KM on my car and she is running like a champ.

Yuille36

I really don't think that this is an issue.

SonnyakaPig

This issue, as stated in the complaint, is that because of the alleged incompatibility of the metal used in the camshafts [cast nodular iron] and the lifters [9310-grade steel] that they make contact with, the camshafts may wear prematurely in as little as 5,000 miles. This can lead to scoring of the camshaft lobes.

Scoring on the camshaft lobes allegedly can lead to premature wear on the lifters, leaving a "gouged ring in the top of the valve lifter. The gouged ring wear on the [lifters] also indicates the [lifters] are not spinning as intended by design."

The complaint provides that this issue can be caused by "soft camshaft metal and/or improper heat treating and/or improper camshaft offset."

So, both the camshaft and lifters are claimed to be affected.

Yuille36

People, lets just wait until the outcome of the lawsuit, before we jump to judgement. There have been many threads written about this issue already. We are all just speculating at this point. I've been on this forum, and have heard very very few cases of engine failure in a AMG. I think this thread is just stirring the pot again.

SonnyakaPig

Personally, I was quoting the complaint. Just trying to present the claim that is being made. No speculation on my end.

Yuille36

SonnyakaPig,

I wasn't directing my reply at you. I was just speaking in general. Sorry for the confusion.

SonnyakaPig

It's all good. I understand. Thanks for the clarification, Yuille36.