[W126 Coupe] Valve lifter ticking

[jralex at ix.netcom.com]

When the car has been stored for a period of time some people recommend removing the coil wire and turn the starter a few cranks to get oil onto the dry parts. Then put the coil wire back in place and start engine. The idea is that if the engine starts immediately as it should do that RPM's with dry parts cause considerable wear. Whereas coil wire removal is not necessary when driven daily since some oil from previous day remains on parts. Frequent oil changes are important for Mercedes engines but even more so with infrequently driven cars due to acid numbers buildup from only periodic start ups and short running times. It is best to run these cars often and for along enough period of time to get hot for a while. The catalytic converter become reactive, fires-off, to neutralize the sulfur and such which will also keep exaust system in good shape. Ever noticed how many SL's which seem to be the most garage not driven cars. They advertise a car with ultra low miles but already
  has a new stainless exaust. Caused by starting to idle only once a month and as exaust cools it pulls water from the atmosphere where resides unburned sulfur as in sulfuric acid. Another big time item that suffers from storage is the fuel distributor. I have been long winded as a confession of quilt. I too need to drive my car more often. Who am I saving it for! Jim Alexander

-----Original Message-----

>From: Nils-Helge Boge <nhb1962 at hotmail.com>

>Sent: Dec 1, 2006 6:34 AM

>To: mbcoupes at mbcoupes.com

>Subject: Re: [W126 Coupe] Valve lifter ticking

>

>Thanks a lot for your kind answer.

>Togheter with mechanic I check the "plastic oil guides" when turning enginee 

>with starters. After  few seconds oil come out and lubricate the cam.

>I also speak with the mechanic one more time and he was sure it was air in 

>the valve lifter which cause the problem with tcking soun when enginee was 

>cold. I will be in touch with "Englevakten"

>Is it possible that a camshaft ,with no new oil on cam during winter 

>storage, could get worn when engine is started due to dry surface of cam?

>

>Regard

>Nils-Helge

>

>

>>From: "Axel Wulff" <axelwulff at hotmail.com>

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

>>To: mbcoupes at mbcoupes.com

>>Subject: Re: [W126 Coupe] Valve lifter ticking

>>Date: Thu, 30 Nov 2006 10:22:38 -0500

>>

>>

>>

>>Nils-Helge,

>>

>>Looks like we have another Norwegian on the forum. Welcome!

>>

>>No, it is not normal to have the camshafts be worn after only 107k KM (~60K 

>>miles) and the ticking sound should definitely not be there after you 

>>changed the cams and lifters.

>>

>>There is a Norwegian guy, Englevakten, on benzworld.org that you can 

>>contact to find the best service location for your car.

>>

>>Good luck.

>>

>>

>>Regards,

>>Axel J. Wulff

>>610-731-5453 Cellular

>>610-572-4611 Home

>>

>>

>>

>>

>>

>>

>>

>>From:  "Nils-Helge Boge" <nhb1962 at hotmail.com>

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

>>To:  mbcoupes at mbcoupes.com

>>Subject:  [W126 Coupe] Valve lifter ticking

>>Date:  Thu, 30 Nov 2006 15:31:35 +0100

>> >Hi

>> >I bought a 560SEC 87 Euro some months ago with 107000km. Nice car which 

>>has

>> >not been driven during winter months and all services documented.

>> >Because there was some ticking from the enginee I get the enginee 

>>inspected

>> >by a mechanic. To my surprise both camshaft was worn for some of the 

>>valves.

>> >Both camshaft and all valve lifters was replaced.

>> >Still, when the engine is cold there is still ticking sound.

>> >1.Is it normal that camshaft get worn out at 107000Km

>> >2. Is it normal that there is

>>thicking sound when motor is cold?

>> >

>> >Regard

>> >Nils-Helge Boge

>> >

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