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  #1  
Old 05-15-2009, 08:46 PM
Jim Lee
 
Join Date: Feb 2009
Location: Durham, North Carolina
Posts: 61
Maybe a valve tick 1995 e320

Just did my head gasket because of the typical 1995 e320 leak that makes the cabin smell like an oil field. I am pretty sure it is a valve tick, tick, ticking away as opposed to an exhaust leak but I do need to yank out the stethoscope. I thought that was pretty strange acquiring a valve tick after reworking the head but I am hoping that there is some foreign object stuck somewhere where it should not be. My first thought is to add some Marvel Mystery Oil or Risoline (sp?) to the oil to see if I can move the potential foreign matter down to the oil sump so I it can be gone.

Thoughts , suggestions, guffaws?

Thanks,
Jim Lee
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  #2  
Old 05-16-2009, 11:16 AM
Registered User
 
Join Date: Jan 2005
Location: St. Louis Missouri
Posts: 473
I have mistaken a noisy smog pump as valve tick, also, if you have the early version of the belt tensioner (the one with the little shock absorber) they can sometimes rattle a bit as well. Somewhere I remember reading a suggestion about adding a flat rubber washer to the top shock mount to quiet the rattle. (May have been a post by Arthur Dalton.....)

Hope this helps.

J. M. van Swaay
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1994 E320 Wagon, 230,000 miles
1995 E320 Sedan, 106,000 miles
1994 E500 Sedan, 79,000 miles
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  #3  
Old 08-19-2012, 09:31 PM
Registered User
 
Join Date: Aug 2012
Posts: 7
Hi

I just finished the head gasket replacement, and a valve job since I am in there. The engine runs fine for about 30 minutes and then suddenly developed this valve tick.

Possible cause is somehow an old piece of silicon gunk ended up in an oil passage and causing a valve lifter to make that noise.

Question 1: should I just drive it a few weeks to see if it passes like a piece of Lego in a kid?

Question 2: Should I bite the bullet, pull the cam shafts and inspect the lifters? What are the signs of a bad lifter?

I should add that this is my sister's car and she let hack mechanics work on it for a long time. I found all kinds of silicon junk outside and inside the engine.

thank for any insight.

Last edited by yelcab; 08-19-2012 at 09:45 PM.
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  #4  
Old 08-20-2012, 10:39 AM
Registered User
 
Join Date: Jun 2009
Posts: 68
I just solved the same problem in my '94 e420 that I have had for a few months. Car would start fine but then develop a ticking noise after fully warmed. Changed the plastic camshaft oil tubes located under the valve covers and, as car was due for an oil change, switched to a 5w-40 fully synthetic oil (I believe that MB recommended a 15w-40 mineral oil and no clue about what car had in it before). Your camshaft lubrication setup may or may not differ because your car has a different engine. Have heard that oil additives with silicone can do more harm than good because they block oil passages. Good luck.
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Brian
'94 E420 - 99K
'12 C300 4 Matic

Previously owned:
'06 CLK 500K Cabriolet
'85 300SD (Old Smokey)
2002 Boxster
2002 C320 (The five-pointed star Mercedes)
1993 300E 3.2 (Dealership's cash cow)
1979 300SD (Chrome beauty)
1983 300D (Old faithful)
1983 240D (Right lane cruiser)
1977 240D (Miracle of bondo)
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  #5  
Old 08-20-2012, 12:14 PM
ChrisArnt's Avatar
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Join Date: Dec 2009
Posts: 279
Flint's mystery oil added to the engine oil has resolved much valve ticking in my day

Flint's mystery oil added to the engine oil has resolved much valve ticking in my day.

Red bottle

1/2 to one half quart in the oil fill.
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96 E300D, 71 Baja Beetle, 77 Convertible Beetle, 2003 Subaru Forester.
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  #6  
Old 08-20-2012, 12:38 PM
Registered User
 
Join Date: Aug 2012
Posts: 7
Quote:
Originally Posted by Brian77 View Post
I just solved the same problem in my '94 e420 that I have had for a few months. Car would start fine but then develop a ticking noise after fully warmed. Changed the plastic camshaft oil tubes located under the valve covers and, as car was due for an oil change, switched to a 5w-40 fully synthetic oil (I believe that MB recommended a 15w-40 mineral oil and no clue about what car had in it before). Your camshaft lubrication setup may or may not differ because your car has a different engine. Have heard that oil additives with silicone can do more harm than good because they block oil passages. Good luck.
So, it is OK to drive with that valve ticking noise, and you can make it go away by

1. Changing the plastic camshaft oil tubes, and
2. Going to synthetic oil.

Is that right ?
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  #7  
Old 08-20-2012, 10:16 PM
I told you so!
 
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,791
Been there with my 95 E320. After replacing my head gasket, I had a valve tick that brought my spirits down. It went away after one or two weeks.
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  #8  
Old 08-20-2012, 10:49 PM
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Join Date: Aug 2012
Posts: 7
Quote:
Originally Posted by Kestas View Post
Been there with my 95 E320. After replacing my head gasket, I had a valve tick that brought my spirits down. It went away after one or two weeks.
Then I simply let my sister drive it for a couple thousand miles and deal with it later. I think the silicon gunk I find in the engine convinces me that one of the valve oil galley is stuffed up with it.
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