1987 420 SEL Engine Help - Page 2 - PeachParts Mercedes-Benz Forum

rcaron · #16 01-12-2005, 05:23 PM

Quote:

Originally Posted by BenzMatic

You might be able to pull a while without the stem seals, even though it burns one qt every 750 miles. You will eventually need them, it is a bit complex job but you can do it. It will cost you about $25 in parts and 8 hours plus labor. Do a search on the stem seals, you will get a lot of information. The best sign is to check first thing in the mornig, when you start first time and if gives a puff of blue smoke you need stem seals but if it stop smoking after first start, you can buy some time but eventually need to do it. This is a 100K miles item, an indie will charge you $500-$700 to do the job.
As for as burning oil smell, it very well could be leaking valve cover gaskit or leaking tranismission oil which drips overt he exhaust and burns.
Good luck and Keep us posted.

I love your info,,, It is really helpful.
Now what you said about the cost $500-$700 to do it sounds great.
Funny that you said valve covers,,,,, they were loose. Now the tranny is leaking but i dont know were it is coming from. I did have the car on a lift and put a new tranny seal in it and the leak slowed down. I put on the lift and check it again.

Rob

rcaron · #17 01-12-2005, 05:40 PM

Quote:

Originally Posted by donbryce

I'll second that opinion. I did my own seals, helluva job but stopped the oil burning completely. Also, try some quality top-end gas additive to see if that doesn't clear a clogged compensator, which it might, like Techron.
P.S.: Are those pointy things on the consol your addition, or the previous owner's?

I Forgot to add that the Spikes only represent the Goth side of my wife and I.

donbryce · #18 01-12-2005, 06:43 PM

Quote:

Originally Posted by rcaron

The engine is burning some oil and I here a clicking noize on the passenger side of the over head Cam. I am thinking of sending the car in for new piston rings, Valve Stem Seal Kit, Valve Guide and Valve Keeper. Is there something I may be missing besides what I have listed. Is there a local shop in seattle that some one trusted. Or should I spend the money on a rebuild engine.

rcaron@nwdemarc.com

Adsit lists a rebuilt 116.965 engine at $4995.00, FOB Muncie IN.

Quote:

Originally Posted by rcaron

It is funny you said "Cam's"
I have been thinking about replacing them. Here is the cost and you tell me what you think.
Camshaft left $303.37
Camshaft Right $294.37
Rocker Arm Laso $19.88 for one.

You'll need 16 rocker arms and 16 lifters (est. @ $19.00 ea.) plus cam bearings (no $$ idea, but imagine big$), valve shims, stuff I am omitting because I'm not a mechanic, and of course, labour.

I think you're better off to have a pro examine the situation and advise the condition of the cams, valve guides, valve stem seals, and related components (maybe only 1 or 2 lifters bad). Have the rings checked with a leak-down tester. I'm betting if the guides and cams are acceptable, you will be OK with new seals and replacing the bad lifter(s) (if any).

Nice sound system, and be sure to post pics of the CNC milled speaker grilles.

BenzMatic · #19 01-12-2005, 07:30 PM

Try changing your oil weight to get rid of "ticking" noise in the morning. I had it done so, I switch to 20-50W, the noise went away. It could be a lifter or it could be the wrong oil viscosity, and finally it is possible that valve in the oil filter housing is bad and let the oil flow back to the crankcase. Try doing a search on the forum and you will find tons of post on this topic.
Do not throw money on the issue, try to diagnose before spend some, you can end up spending $$$$ on a problem which could be very easy to fix. If you are not a serious DIYer, try to find a reliable independent machanic. This forum also has a link, look under "general discussion" and then click on "Good MB shops".
Hope it helps, Keep us posted.