[W126 Coupe] Camshaft replacement

[Andrew Sporner]

Hi Jas,

There are groves on at least one of the cams (visible from the oil fill hole).
But given that the "clacking" goes away after the motor runs for about a minute
or so probably has to do with the pump and lines.  This should a "relatively
trivial thing" to take car of.

There are funny rules here about where one can and can't work on cars and
the street is definately not one of them.   They have this hobby garages here
where one can rent time.  I will probably have to find one (in Stuttgart should
not be problem).

But especially because of the Euro/Dollar exchange it might just be cheaper
to do this stuff in the US.

Thanks again.



Andy


On 6/26/08, stefansj at canisius.edu <stefansj at canisius.edu> wrote:

> I recently replaced my left camshaft and it was not a very hard job at all ( I did

> have the Mercedes Engine manual however). Unless your rocker arms have signs

> of wear I wouldn't necessarily replace all of them, depending on the mileage of

> the engine and prior maintance. You definitely need a cam oiler kit (no more

> than $3-4), I also replaced the cam oiler pipeline because that tends to clog up.

> Thats about $50. 1500 euro is very high compared to what my total was, I paid

> 350 for a OEM cam, $60 for the pipeline, $25 rocker, and $4 oiler kit. Goodluck!

> Jas

>

> ---- Original message ----

> >Date: Tue, 24 Jun 2008 14:07:44 +0200

> >From: "Andrew Sporner" <asporner at googlemail.com>

> >Subject: Re: [W126 Coupe] Camshaft replacement

> >To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>

> >

> >I see you took magic in the spirit intended ;-)

> >

> >I had a price here of EUR 1500 to do this and was advised not

> >to do it on account of the value of the car itself.

> >

> >I am rather torn on this---but if I figure I do anything to the motor

> >it is something

> >that can be salvaged into another car later if the body is too far gone.

> >

> >Ideas?

> >

> >

> >Andy

> >

> >On 6/24/08, Pete Williams <hwilliamsjr2 at cox.net> wrote:

> >> Andy,

> >> Cam timing marks are already there. There is a lot more "magic" involved. At

> >> least two special tools, spring compressor and offset hex head wrench.

> Don't

> >> try to just get by. There is the danger of the threads coming out with the

> >> bolts. Half of the bolts go into the head, half are head bolts entering the

> >> block at approximately 1-1/2 degrees off perpendicular. Get all new

> rockers.

> >> You'll need at least an oiler kit, very inexpensive. It'll be a good time

> >> for a timing chain and tensioner if they haven't been replaced in recent

> >> memory. If you do end up with tread problems, then you'll have to be a

> >> magician to master all of the "magic" involved. Make sure no washers, bolts,

> >> master links, or loose timing chain ends fall into the engine where the

> >> timing chains enter. Remove the plugs for easy engine rotation. In case the

> >> chain jumps on the other head, it's best to remove all of the rockers. If

> >> you do decide to do it yourself, there are a lot more "tricks" involved but

> >> there are a lot of magicians on this forum to help you. It's all possible

> >> and can be very rewarding, but there can be a lot of frustration too.

> >> Good luck,

> >> Pete Williams

> >> 1972 350SL 4.5

> >> 1983 500 SEC AMG

> >> 1984 500 SEL (parts)

> >> MBCA, Central Oklahoma Section

> >>

> >> -----Original Message-----

> >> From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-

> bounces at mbcoupes.com]

> >> On Behalf Of Andrew Sporner

> >> Sent: Tuesday, June 24, 2008 2:54 AM

> >> To: Mercedes Coupes Mailing Lists

> >> Subject: [W126 Coupe] Camshaft replacement

> >>

> >> I am told that the right camshaft needs to be eventually replaced

> >> (makes a clacking sound when the motor is cold and their are grooves

> >> on one of the cams)  They tell me that the car can go up to 50K Kilometers

> >> more without problems -- or die next week.

> >>

> >> Can anybody suggest the level of difficulty.  I am not foreign to working

> >> on cars (rebuilt the motor on my 1976 Ford mustang -- though admittedly

> >> I sent the top-head away to get remachined).

> >>

> >> I suppose you just have to mark the gears on the timing chain and just

> >> replace?  Or is there more magic involved?

> >>

> >> Andy

> >> The MB Coupes Website!

> >> W126 SEC Mailing List

> >> Postings remain property of MB Coupes, L.L.C.

> >>

> >>

> >> The MB Coupes Website!

> >> W126 SEC Mailing List

> >> Postings remain property of MB Coupes, L.L.C.

> >>

> >The MB Coupes Website!

> >W126 SEC Mailing List

> >Postings remain property of MB Coupes, L.L.C.

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>