Oil consumption.
21 - 40 of 55 Posts
2012 Cts-v , B-15, ported blower , fic 1100, 2.38/9.55 pulley , tsp 2” LT, DW300’s/DSX AUX
Joined
·
40 Posts
Personally to me it just looks like a fouled plug …. This is also why I asked what fuel you’re using. If you had oil issues in that cylinder there would also be white deposits …..
Someone fat fingered it …. I would just put it back to 50
so here's the problem i am having. i thought it was just a fouled plug as well. went out bought a new plug put her in and took for a drive. feels perfect. drove for about 20 minutes. brought it back home, let it cool down and pulled the plug again to check and back to oil coated. not a ton but coated again
2012 Cts-v , B-15, ported blower , fic 1100, 2.38/9.55 pulley , tsp 2” LT, DW300’s/DSX AUX
Joined
·
40 Posts
Regardless I would still change it. I would also put a new plug in it and go clear out the cylinder before performing your leak down …..I almost guarantee it would be low if you were to just test as is now.
2012 Cts-v , B-15, ported blower , fic 1100, 2.38/9.55 pulley , tsp 2” LT, DW300’s/DSX AUX
Joined
·
40 Posts
Is your car consuming oil ? If it were oil and enough oil to outright foil a plug , your car would definitely be smoking …..as others have said , a compression test as well as leak down is where you want to start !
the car is consuming about a half a quart at around 200 miles or more but no smoke which is weird. either way I'm scheduled to bring it to the dealer on monday for a full diagnose. fingers crossed🥺
Joined
·
1,766 Posts
Good luck. Be prepared to bend over.
Is there an opening like a breather in the valve cover to stick the borescope in?
I would look for oil pooling.
Is there an opening like a breather in the valve cover to stick the borescope in?
I would look for oil pooling.
Joined
·
22,842 Posts
That’s a lot of oil.the car is consuming about a half a quart at around 200 miles or more but no smoke which is weird. either way I'm scheduled to bring it to the dealer on monday for a full diagnose. fingers crossed
Sent from my iPhone using Tapatalk
Joined
·
6,105 Posts
Believe it or not. . .
That is not as unusual as it might seem.
The early Chevrolet V8's burned about that much oil,
but you never saw it come out of the tailpipe.
Those early engine blocks had a high Nickle content. which
is very hard, along with a hone pattern that was wrong.
The factory cure for the Chevrolet 265 CID was to pull the air cleaner / oil bath, put the engine up on high idle via the cold-start choke linkage, and pour Bon Ami down the Carburetor. LOL
Before GM helped to design a proper ring, the 1965 - 1966 Cadillacs burned about 1 quart in 500 miles. Again, nothing visible from the tailpipe.
In both cases above spark plugs were not fouled, that I know of.
Owners simply got tired of having to put oil
in the engine every time they got gas.. 😢
Now, it would seem that if one is burning that much
oil through 8-Cylinders, one might not foul plugs.
But your engine, it seems, is burning it only through one cylinder. This could be the reason the plug is fouling.
i just popped off the pcv and filler cap right above the valves in question. snaked my borescope down both holes with nothing out of the ordinary. no shavings or anything bent.all looks clean. my only guess at this point until my guy at the stealership pulls the valve cover is a bad valve guide seal. hopefully that's al it is. then the wonder of why it failed so soon
Joined
·
3,449 Posts
I would echo others leakdown and compression test are good first steps.
so i took the car to the dealer and my buddy diagnosed the car to find nothing wrong. he said that he had is tech pull the plug in question and its clean/runnng perfect. i wonder if performing a lot of downshifting could cause a plug to foul out and cause oil consumption. he said for me to run the car and document my mileage as to how much oil i may be consuming. at this point im not going to be downshifting any time soon.
Joined
·
6,105 Posts
Downshifting will cause a large vacuum to be generated in the cylinder.
If you do have a bad valve seal, this is when it will pull oil into the cylinder.
Also, something caused that spark plug to oil / foul up.
Cleaning the plug would not, I believe, cure the problem. . .
Joined
·
6,105 Posts
Call me confused, but you wrote:
"so here's the problem i am having. i thought it was just a fouled plug as well. went out bought a new plug put her in and took for a drive. feels perfect. drove for about 20 minutes. brought it back home, let it cool down and pulled the plug again to check and back to oil coated. not a ton but coated again.
This time I believe your stating you still had a miss,
but the plug was 'not' oil coated. . .
If this happens again, you should look into this more deeply (JMHO).
If you don't, your liable to wash the rings out of that cylinder.
A simple compression test, followed up with verifying
the state of tune, might help you feel better. .
Cheers
After all your help and searching the net for answers I stumbled upon a pic showing a rich condition to a plug, my heart dropped. This makes more sense with the mileage of the car and the lack of beating on it. At first I will admit when I first pulled the plug when it was misfiring I noticed a dark coated plug and automatically assumed it would be oil after more than a week of searching the web I realized it’s not oil
![Automotive tire Font Art Rectangle Gas]()
![Automotive tire Gas Font Household hardware Rim]()
Joined
·
640 Posts
that looks like the ''max torque timing'' table, it is not actual timing and dont touch it unless u really have too, if is stock then leave it
21 - 40 of 55 Posts
