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  #1  
Old 12-29-2013, 02:39 PM
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1992 300D 2.5 head gasket?

I changed my head gasket 2 years ago, can a head gasket go bad in 2 years? I have a oil/coolant leak on the bottom of my exhaust manifold on cylinder #5. When my car is idling It stumbles every once in a while, and when it stumbles I get a puff of smoke from the bottom of the exhaust manifold on #5 cylinder. What is going on?

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Old 12-29-2013, 02:45 PM
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It's not unheard of. Oil alone could might not be the head gasket. Coolant in that area can only be the head gasket. There's a coolant supply fitting for the cabin heater by the oil filter. I don't think coolant can quietly get to the other side of the engine but you might have a look.

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Old 12-29-2013, 05:24 PM
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Quote:
Originally Posted by sixto View Post
It's not unheard of. Oil alone could might not be the head gasket. Coolant in that area can only be the head gasket. There's a coolant supply fitting for the cabin heater by the oil filter. I don't think coolant can quietly get to the other side of the engine but you might have a look.

Sixto
87 300D
I know where you are talking about, I checked there and all is dry. I have coolant that is slowly disappearing, so? Not sure what to do. If its just oil then what? Could be a cracked head? Also, what about the stumble and puff of smoke?

Last edited by 04 Diesel; 12-29-2013 at 05:35 PM.
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Old 12-29-2013, 05:38 PM
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smoke gets in your eyes
 
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If it's otherwise running well with no excessive pressure in the cooling system and no odd temperature behavior, a new head gasket is probably all you need. You might try a cooling system pressure test.

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87 300D
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Old 01-02-2014, 09:35 PM
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Took head off yesterday and there is a crack by #5 and coolant passage. This new head gasket better last longer than 2 years.
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Old 01-02-2014, 10:23 PM
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...crack in the gasket, right? What brand was it?
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Old 01-03-2014, 04:14 PM
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What brand was the previous head gasket? Might it have overheated over the last couple of years?

Sixto
87 300D
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Old 01-03-2014, 07:49 PM
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Sorry guys, I don't remember what brand it was.
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Old 01-04-2014, 06:55 PM
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Took the valves out of the head tonight, The valve guide seals were all gone. Not one was there, not even any pieces. What is the deal? I replaced the valve guide seals on my 76 Dodge W100 this summer and there were a few that had fallen apart. But there should be something there.

Last edited by 04 Diesel; 01-04-2014 at 10:03 PM.
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  #10  
Old 01-07-2014, 08:30 PM
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I took the head to the shop today, should get it back Friday. I cant wait to get her back on the road.
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Old 01-11-2014, 07:49 PM
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Problem!! All my exhaust seats are cracked, getting new ones put in. Should get the head back midweek.
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Old 02-14-2014, 08:59 AM
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Ok, got her all put back together and she runs good. I have a question, The fuel lines that run from injector to injector. I got some fuel line that is rated up to 50lbs of pressure, Will that fuel line be ok? I forgot to get the line that was on it. Will it be ok?
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Old 02-14-2014, 09:40 AM
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Glad you were able to save that car.

The line that runs from injector to injector is the low pressure return line.

In a pinch use weed wacker fuel line from the home center.

The proper return hose can be found here
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Old 02-19-2014, 06:37 PM
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So the fuel line that I got will work?

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