NoScope
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Doing timing job. While cleaning cylinder head I came across O-rings were plugs screw into. Anyone have a part# or what the heck they're called?
Spark Plug Boot Seal?
- Thread starter NoScope
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99WhiteC5Coupe
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Year, make, model & engine?
Could be this: https://www.amazon.com/Motorcraft-W...61306&sprefix=Motorcraft+wr613,aps,249&sr=8-1
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NoScope
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2010 5.4 3V (Post 10/2009) 4WD
If you look you can see the O-Ring in this pic. Probably for water seepage?
If you look you can see the O-Ring in this pic. Probably for water seepage?
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NoScope
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Nobody has any ideas on this?
jeff kushner
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Looks to be the edge of spark plug tube seals, typically embedded/installed on the underside of the valve cover then pressed/pulled in when you tighten the bolts of the cover. I replaced them on my 2.3Supercharged Mercedes. When posts "go missing":, many won't bother.
If a vehicle sits, sometimes they shrink them leak and fill the tube at next startup.....as happened to me....huge smoke out the rear was a clue, as was the miss!
If a vehicle sits, sometimes they shrink them leak and fill the tube at next startup.....as happened to me....huge smoke out the rear was a clue, as was the miss!
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NoScope
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Thanks Jeff.
If that O-Ring were to leak however how could that cause any smoke, a miss etc...? Even a bit of water in there would still be kept out by the plug itself. I do understand the Valve Cover possibility. Taking a better look at Covers in the morning.
3 Ford Stealers called. 2 Straight up said they have no idea.. like wtf? The 3rd in CherryHill NJ spent dam near an hour and was stumped as well. Told me they'd contact me later in the week. But what's wrong with taking 2 minutes to walk into the shop and asked the most experienced mech his thoughts? "Uhhh we're not actually allowed to do that" In other words Bring it in...
The Pic is clear as day and I pulled out 8. Wished I'd have pulled out a Weasely Wabbit instead.
What do you mean 'Posts Go Missing'?
Thanks again for taking the time.
If that O-Ring were to leak however how could that cause any smoke, a miss etc...? Even a bit of water in there would still be kept out by the plug itself. I do understand the Valve Cover possibility. Taking a better look at Covers in the morning.
3 Ford Stealers called. 2 Straight up said they have no idea.. like wtf? The 3rd in CherryHill NJ spent dam near an hour and was stumped as well. Told me they'd contact me later in the week. But what's wrong with taking 2 minutes to walk into the shop and asked the most experienced mech his thoughts? "Uhhh we're not actually allowed to do that" In other words Bring it in...
The Pic is clear as day and I pulled out 8. Wished I'd have pulled out a Weasely Wabbit instead.
What do you mean 'Posts Go Missing'?
Thanks again for taking the time.
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jeff kushner
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The oil, in my case. The leaking seals allowed the oil to fill the spark plug tube and shorted the plug so it didn't fire. Feeding raw fuel into a cat converter makes a heck of a lot of smoke!
When I asked a Mercedes dealer, they gave me the same blank stare.....so I fixed it myself!
When I asked a Mercedes dealer, they gave me the same blank stare.....so I fixed it myself!
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NoScope
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Jeff... Ummm yea it does. Concerning the valve covers. Nothing there. uugghh
jeff kushner
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Here's what they look like on a Mercedes.....this is the underside of the valve cover.....
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NoScope
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