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  #1  
Old 01-12-2008, 12:31 PM
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Join Date: Oct 2004
Location: Baton Rouge La
Posts: 2,632
Valve stem seal conundrum

Did the valve seals on the 260e... was burning a quart every 350 miles... 214k
Now not burning or going through any oil.

Did the valve seals on the 300CE... was burning a quart every 600 miles 165k
Now burning oil at a quart every 400 miles. although I am using 15w-40 instead of 20w-50

I did not use the plastic protectors on the intake valves on either car.

I was hoping that this would stop the oil problem in the CE.. the 260E i figured probably needed a valve job, but apparently not...

Maybe the CE does.. or i wonder if i scored the intake valve seal stems... I do have another package of seals

Both cars run perfectly.

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


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  #2  
Old 01-12-2008, 12:51 PM
RAYMOND485
 
Join Date: May 2005
Location: CALIF
Posts: 508
Valve Seals

Always Install The Plastic Protectors Over The Valve Stem Before
Install The Seals
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  #3  
Old 01-12-2008, 03:26 PM
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Join Date: Sep 2004
Location: Seattle
Posts: 1,971
Could be the rings or just a single ring. Valves aren't the only way to burn oil. I don't think that failure to use the plastic protectors would totally destroy the new seals. It is best do use them but I don't think failure to use them will affect the performance of the new seals that much.
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
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  #4  
Old 01-13-2008, 11:02 AM
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Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
The 103 motor uses VG seals regularly, I've never seen a VG seal problem in a 104 motor. I'd look elsewhere.
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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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  #5  
Old 01-13-2008, 01:28 PM
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Join Date: Oct 2004
Location: Baton Rouge La
Posts: 2,632
Quote:
Originally Posted by stevebfl View Post
The 103 motor uses VG seals regularly, I've never seen a VG seal problem in a 104 motor. I'd look elsewhere.
Steve... the CE has the 103 motor since it is a 1989...

I guess in a few weeks i will pull the spark plugs and see if they are oil fouled..

__________________
1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]
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