[BadAss70Nova]

Noticed my car is smoking blue out of the drivers side exhaust, only after when its warmed up and hot, i replaced the pcv valve, and intake manifold gasket, and it still did the same thing, i took a compression test and found all cylinders on drivers side as follows: 145 145 155 140, im running out of ideas to think, i have a pair of brand new brodix IK200 Heads on there, i have no clue what to think??? any help would be appreciated, btw car still runs really strong!!!

 

[chevyIIheavy]

little bit of blow bye is all . although it does look like one cylnder is starting to go bad ( 140 ) i would look at this one just to make sure

 

[BadAss70Nova]

little bit of blow bye is all . although it does look like one cylnder is starting to go bad ( 140 ) i would look at this one just to make sure

well they are all around the same range so how can it really be bad?

 

[chevyIIheavy]

that cylnder is the lowest you have two that are the same and one the highest. so the one with the highest number is the good cylinder , the two that are the same are still good as well , then you have one down 140 usually its a difference between two cylinders means something is a miss might want to see if the cam is still good see if it is clossing the valves all the way, maybe adjust the valves and then do another comp test ....... what is the other bank say for a comp test ( i mean did you do boht sides when you did a comp test ) and how far off are they...... oh sorry i didnt mean to say it was dead and never going to work again. just that i would suspect this one is doing some thing different

 

[64PRONOVA]

You should do a compression test of the other side that doesn't burn oil as a comparison.

 

[chevyIIheavy]

exactly what he said up der ^^^^^^

 

[BadAss70Nova]

You should do a compression test of the other side that doesn't burn oil as a comparison.

what will that show me though? thats not the problem side?

 

[Tubbed63]

what will that show me though? thats not the problem side?

Compare to good side to the bad side.

Lets narrow it down some.

The IK200 heads are fresh right? Well that leaves out guides or valve stem seals. What does that leave? Rings. So we need to compare the side that doesn't smoke with the side that does.

 

[BadAss70Nova]

Compare to good side to the bad side.

Lets narrow it down some.

The IK200 heads are fresh right? Well that leaves out guides or valve stem seals. What does that leave? Rings. So we need to compare the side that doesn't smoke with the side that does.

i just checked the other side for compression and got the same results, where do i go from here?

 

[74 hatchback]

Noticed mine had blue smoke out of the drivers side last week and found the #7 plug fouled so new hotter plugs and a 20w50 oil change fixed it, try the same, i recommend lucas oil stablizer also if you go with a thinner oil.

 

[scott costa]

You could take the header off on that bank and see which cylinder smokes.

 

[danthegeek]

You may want to check the valve seals too to make sure none of them are damaged. I had a fouling problem with a camaro that had a few bad valve seals. It would smoke a bit and foul the plugs after about 30-40 miles. After putting in umbrella valve seals the problem went away. Its easy to check anyway if you have an air compressor for the cylinders and a valve spring compressor.

 

[JRouche]

And if you have a temp sensor, the hand held type check the header tubes. After she is up to operating temps, after a nice drive shoot the tubes. I have seen a dead cylinder that way. Was 100 degrees cooler than the others. Mine is EFI so it lead me to a bad injector. It may show a bad spark to that cylinder. Pulling the plugs and reading them will tell you mountains of info. You may find a dead cylinder that way. You already pulled them all, how do they read??? JR

 

[BadAss70Nova]

Noticed mine had blue smoke out of the drivers side last week and found the #7 plug fouled so new hotter plugs and a 20w50 oil change fixed it, try the same, i recommend lucas oil stablizer also if you go with a thinner oil.

You could take the header off on that bank and see which cylinder smokes.

And if you have a temp sensor, the hand held type check the header tubes. After she is up to operating temps, after a nice drive shoot the tubes. I have seen a dead cylinder that way. Was 100 degrees cooler than the others. Mine is EFI so it lead me to a bad injector. It may show a bad spark to that cylinder. Pulling the plugs and reading them will tell you mountains of info. You may find a dead cylinder that way. You already pulled them all, how do they read??? JR

plugs look good, they are new too, new 20 50 oil, im gonna shoot the tubes tommorow and see what it reads

 

[Z-man]

the blues

Typically if it is a head issue it will only show when starting as the seals will let oil gather (at the given cylinder) when the car is off and then burn off as you start it up, then seems like the problem goes away. You will still notice on the offending cylinder with a read of the plugs. If you run the car and don’t see blue until it is warmed up then my dime is on the oil ring going or a scored cylinder that is letting the oil past when everything is relaxed at the operating temp. Couple of questions....does it do this under idle, normal operation, hard acceleration? Did it start all of a sudden? Has your oil consumption gone up? For a compression test if you are within +/- 10% on the cylinders you are running ok...start to worry when you have 150 155 145 90... or less, but that will indicate valve or compression ring issues......again I think you have an oil ring or scored cylinder to deal with. But that is just my two cents worth....or dime...or what ever a dollar is worth today.....also make sure that it is indeed oil (blue) vs. unburnt fuel (black/grey) that you are chasing.....else it will be a long few days and a lot of grief.

 

[pops]

Intake manifold gasket might be leaking between the manifold and the head...just something to look at...

pops

 

[BadAss70Nova]

Typically if it is a head issue it will only show when starting as the seals will let oil gather (at the given cylinder) when the car is off and then burn off as you start it up, then seems like the problem goes away. You will still notice on the offending cylinder with a read of the plugs. If you run the car and don’t see blue until it is warmed up then my dime is on the oil ring going or a scored cylinder that is letting the oil past when everything is relaxed at the operating temp. Couple of questions....does it do this under idle, normal operation, hard acceleration? Did it start all of a sudden? Has your oil consumption gone up? For a compression test if you are within +/- 10% on the cylinders you are running ok...start to worry when you have 150 155 145 90... or less, but that will indicate valve or compression ring issues......again I think you have an oil ring or scored cylinder to deal with. But that is just my two cents worth....or dime...or what ever a dollar is worth today.....also make sure that it is indeed oil (blue) vs. unburnt fuel (black/grey) that you are chasing.....else it will be a long few days and a lot of grief.

i really appreciate the help bro, yes this just started happening, it does it at idle, and if i get on it hard it only smokes when i let off the gas, oil has been good, plus all looked good believe it or not lol, but yeah im thinking it may be a ring, so im gonna have to pull the motor out soon, and get that taken care of, o yea its def blue smoke without a doubt, and only happens when the car gets up to a warm operating temp

 

[Bill's II]

Smoking Out of Drivers Side Exhaust

Hey Now I believe Pops is right on the mark. I think you are sucking oil mist from intake gaskets. He needs to change the Intake gaskets, pulling oil from underside of intake. Also be sure that you Re-check Compression readings with all sparkplugs removed and same number of compression strokes for each cylinder. Why you ask?, Two Side by Side cylinders with exact same compression readings can indicate a blown/leaking Head Gasket. Respectfully, "Bill's" II

 

[BadAss70Nova]

Hey Now I believe Pops is right on the mark. I think you are sucking oil mist from intake gaskets. He needs to change the Intake gaskets, pulling oil from underside of intake. Also be sure that you Re-check Compression readings with all sparkplugs removed and same number of compression strokes for each cylinder. Why you ask?, Two Side by Side cylinders with exact same compression readings can indicate a blown/leaking Head Gasket. Respectfully, "Bill's" II

not the intake gasket, i just replaced it