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Engine Coolant Leak

Tiny
HAPPYHANDZ
  • MEMBER
  • 1985 MERCEDES BENZ 190E
  • 250,000 MILES
The leak is right on the engine. I can see it plane as day. Its a little half circle cap thing and it drips really slowly. How do I stop it?
Wednesday, September 28th, 2011 AT 11:51 AM

9 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
A little half circle cap thing is a bit hard to place sorry, can you take a pic and post it?
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Wednesday, September 28th, 2011 AT 11:53 AM
Tiny
HAPPYHANDZ
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  • 6 POSTS
Here you go
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Wednesday, September 28th, 2011 AT 12:14 PM
Tiny
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Sorry can you re send I lost the image, my error.
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Wednesday, September 28th, 2011 AT 12:17 PM
Tiny
MHPAUTOS
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I think I have a dead engine at work, so if I can locate the part I will get a better idea as to what is going on. I found the pic, it looks like the rubber 1/2 moon grommet under the rocker cover, this will not be the leak, check around the rocker cover and see if you can find any evidence of coolant leaking, I will still look at the engine at work as well.
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Wednesday, September 28th, 2011 AT 12:22 PM
Tiny
HAPPYHANDZ
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  • 6 POSTS
No I have sat there and watched it leak. Its really slow. Like a drop a min
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Wednesday, September 28th, 2011 AT 12:32 PM
Tiny
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I will check the engine at work in the morning, I am in Australia, it's 10-35PM here just now, so it will be in a few hrs time.
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Wednesday, September 28th, 2011 AT 12:37 PM
Tiny
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See the pic, you will see the 1/2 moon seal on the rocker cover, is this the place you see the leak?
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Wednesday, September 28th, 2011 AT 12:55 PM
Tiny
HAPPYHANDZ
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Yes that would be it. How do I fix it
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Thursday, September 29th, 2011 AT 12:05 AM
Tiny
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There is no coolant behind that seal, I would get the cooling system pressure tested and look around the thermostat housing and the thermo switches on the drivers side, I do feel that coolant is working its way around the rocker cover and coming visible at the front, get this done first.
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Thursday, September 29th, 2011 AT 2:33 AM

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