2012 5.0,lots of smoke cylinder 8 misfire.
7/31/11, 04:27 PM
#23
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Originally Posted by BlackOut2k11
Yeah but I wonder if damage was done while the VCT was offline.
7/31/11, 05:16 PM
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Originally Posted by ShaneGT
Prompt neighborhood of 4-5k. Look into ford racing shortblock for boosting since u wanted to go sc
Ok I'm at work right now so I think I'm going go have my brother go pick up a spark plug for me to see if changing it would help. ( If it's blown , don't know yet)
What kind of spark plug should I buy?
7/31/11, 05:51 PM
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According to 5.0 Mustang Mag, the Coyote 5.0 is a freewheeling engine. Therefore, the VCT failure would not have led to valves hitting the piston top.
If it is an interference engine, the VCT failure could result with valves clashing with each other. That can result in damaged/bent valves - which could explain the oil smoke.
Expensive, but a lot less than damaged pistons.
Of course, the fact that its #8 points to the much discussed (alleged) tune failure.
If it is an interference engine, the VCT failure could result with valves clashing with each other. That can result in damaged/bent valves - which could explain the oil smoke.
Expensive, but a lot less than damaged pistons.
Of course, the fact that its #8 points to the much discussed (alleged) tune failure.
Last edited by cdynaco; 7/31/11 at 05:52 PM.
7/31/11, 05:53 PM
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Originally Posted by ShaneGT
just have him do a compression check on the cylinder.. if you still have good compression, then change plug, check coil..
Autozone and Oreily don't even have the spark plugs!
7/31/11, 05:55 PM
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Park it!
If it is a broken ring like some have had, then you are risking scoring the cylinder and then for sure you're in for big bucks.
If it is a broken ring like some have had, then you are risking scoring the cylinder and then for sure you're in for big bucks.
Last edited by cdynaco; 7/31/11 at 06:03 PM.
7/31/11, 05:58 PM
#30
What kind of smoke are we talking about here? Black? Whitish-blue?
7/31/11, 06:02 PM
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if it was ping(detionation) or fuel starvation, the ring can be shot. the burning smoke, was either 1 of 2 things. Burning of a ton of fuel(unlikely) or oil itself is burning. If you are burning oil, the rings on that cylinder are shot. Do a google search on spark plugs and find a picture of one that is form a engine that burnt alot of oil.. compare them to yours. hell take a pic and post it here.. a Compression check would tell us everything, if I am not mistake, you should see about 180PSI(someone chime in and correct me if I am wrong).
7/31/11, 06:02 PM
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Originally Posted by cdynaco
Park it!
If it is a broken ring like some have had, then you are risking scoring the cylinder and then for sure you're in for big bucks.
If it is a broken ring like some have had, then you are risking scoring the cylinder and then for sure you're in for big bucks.
Thanks.
7/31/11, 06:08 PM
#34
Then you've got problems that a spark plug isn't going to fix. That's oil smoke, which means oil is getting past the rings into the cylinder when it fires. So most likely you've got rings broken, or piston broken. And from the recent #8 cylinder problems I'd say its likely a broken ring land.
7/31/11, 06:16 PM
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Originally Posted by ShaneGT
if it was ping(detionation) or fuel starvation, the ring can be shot. the burning smoke, was either 1 of 2 things. Burning of a ton of fuel(unlikely) or oil itself is burning. If you are burning oil, the rings on that cylinder are shot. Do a google search on spark plugs and find a picture of one that is form a engine that burnt alot of oil.. compare them to yours. hell take a pic and post it here.. a Compression check would tell us everything, if I am not mistake, you should see about 180PSI(someone chime in and correct me if I am wrong).
7/31/11, 06:17 PM
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Originally Posted by Rather B.Blown
Then you've got problems that a spark plug isn't going to fix. That's oil smoke, which means oil is getting past the rings into the cylinder when it fires. So most likely you've got rings broken, or piston broken. And from the recent #8 cylinder problems I'd say its likely a broken ring land.
