[W126 Coupe] Conversion 380 to 500euro

[attila13 at bellsouth.net]

I'm going to print-off your reply, and take it to Crane on 
my next trip. Thanks. Attila.

> 
> From: Dan Landiss <dan at landiss.com>
> Date: 2006/02/20 Mon AM 10:49:57 EST
> To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> Subject: Re: [W126 Coupe] Conversion 380 to 500euro
> 
> David G. Cole wrote:
> > It is a good point of concern. Stu Ritter is fairly set in his opinion
> > that aftermarket cams do not hold up, performance or otherwise. He has
> > installed a fair share of aftermarket cams, only to have them chew the
> > lobes off in a relatively short amount of time.
> >   
> 
> I would not go so far as Ritter and generalize to ALL aftermarket cams 
> for MBZ, but I do have anecdotal evidence.
> 
> Iskendarian ground a set of cams for my 450SL and they ran fine for a 
> few days. As described, the lobes wore down. A local metallurgist 
> declared that the heat treating was defective and Isky agreed to have a 
> look at them.
> 
> Isky declined to comment on the quality issue, but they did say that the 
> cam follower angles on the 450 head are so severe that unusual loads are 
> placed on the lobes. They bought me a new set of stock cams and 
> followers but declined any further experimentation with regrinding for MBZ.
> 
> I wouldn't say it can't be done -- after all, MBZ does it. But any 
> aftermarket grinder should be advised in advance of the heat treating 
> issues.
> 
> -- 
> 
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