[R129 SL] ticking sl500

[Baktash Taghehchian]

What weight motor oil are you using? Is the noise
dependant on whether your A/C is on or off?

Baktash

--- mrthor at att.net wrote:

> It does not always make noise when cold. It comes
> and goes all the time. This morning I started up the
> car no noise. Drove it to a appointment about 1/2 an
> hours drive it was ticking. Then I drove it maybe 5
> miles to work and no ticking when I parked it and
> put up the top??? 
> 
> The oil preausre is between 2 and 3. Around 2 at
> idle and 3 when driving.  I have put 1 small bottle
> of clean into the engine however I am not sure how
> much cleaner I should add before taking it to the
> next level? I was also told that I could use
> automatic transmition fluid to cean it???? But I
> have not done so. 
> 
> Thanks 
> 
> Thor
> 
> Chicago, IL
> 
> 
> 
> -------------- Original message from mid-co
> <mid-co at ix.netcom.com>: -------------- 
> 
> 
> > Does it make the sound just 
> > at a cold start ? What's your 
> > oil PSI showing when it 
> > "ticks" ? 
> > 
> > Sounds like a hydraulic lifter not pumping up , 
> > or a timing chain issue. You can isolate it 
> > with a short length of garden hose. Put 
> > one end to your ear and the other near 
> > the area of the sound , taking care not 
> > to get any clothes tangled in moving 
> > parts. 
> > 
> > I've had LOTS of internal engine issues with 
> > my one owner , low miles '95 SL 500. 
> > This car has been on Mobil-1 , changed at 
> > 3.5 - 4-K intervals. Dealer serviced & PAMPERED. 
> > 
> > I'd have the OIL TUBES checked. It's hard for 
> > me to believe that a car that costs 90-K would 
> > have a PLASTIC tube carry the oil to the top 
> > of the engine , but this one does. ( I believe 
> > these were replaced "quietly" , under warranty 
> > on many cars ). 
> > 
> > 
> > More : Seems there was a timing chain issue 
> > with mid-90's 5 liter engines. I believe 
> > this was very year specific. Maybe another 
> > member knows just what years to look 
> > out for. 
> > 
> > The lifters also can be a problem in 
> > the 5 liter motor , even at low miles. 
> > 
> > 
> > 
> > Bruce in Nashville. 
> > 
> > 
> > 
> > 
> > 
> > The MB Coupes Website! 
> > R129 SL Mailing List > The MB Coupes Website!
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