Oil Catch Cans

[5.0KDM]

To anyone with one installed does it fully get rid of the cloud of smoke when accelerating hard or does it just lessen it?

 

[pulsar]

If your burning oil for some reason, don’t see a catch can doing anything to help if you have oil-blow by getting around a valve stem or your rings. There are many prior discussions here on CC and what their purpose is and how they are plumbed in. Suggest you read up on those. My CC maybe gets an ounce or two of oil between oil changes (5000 miles) so no way can I see a tiny amount of oil mist from the crankcase going back thru the manifold on a typical drive causing any visible smoke. You have oil getting into the combustion chamber from some alternate source or a worn-out component.

 

[glennk]

If your burning oil for some reason, don’t see a catch can doing anything to help if you have oil-blow by getting around a valve stem or your rings. There are many prior discussions here on CC and what their purpose is and how they are plumbed in. Suggest you read up on those. My CC maybe gets an ounce or two of oil between oil changes (5000 miles) so no way can I see a tiny amount of oil mist from the crankcase going back thru the manifold on a typical drive causing any visible smoke. You have oil getting into the combustion chamber from some alternate source or a worn-out component.

Other than a dealer, do you have a recommended indy mechanic?

 

[SuperKing]

To anyone with one installed does it fully get rid of the cloud of smoke when accelerating hard or does it just lessen it?

That cloud of smoke is burning rich at full throttle, it's not oil. It's kinda brownish/black in colour, if it was oil it'd be blue.

 

[5.0KDM]

That cloud of smoke is burning rich at full throttle, it's not oil. It's kinda brownish/black in colour, if it was oil it'd be blue.

Is that normal?

Other than a dealer, do you have a recommended indy mechanic?

Yes I do.

If your burning oil for some reason, don’t see a catch can doing anything to help if you have oil-blow by getting around a valve stem or your rings. There are many prior discussions here on CC and what their purpose is and how they are plumbed in. Suggest you read up on those. My CC maybe gets an ounce or two of oil between oil changes (5000 miles) so no way can I see a tiny amount of oil mist from the crankcase going back thru the manifold on a typical drive causing any visible smoke. You have oil getting into the combustion chamber from some alternate source or a worn-out component.

I'll get a video if start up td. Ill have to change my oil soon so I'll check if I'm losing oil. The exhaust doesnt smell sweet but I will also check my coolant levels.

 

[pulsar]

Other than a dealer, do you have a recommended indy mechanic?

Sorry, I do not. I rarely have anyone work on my cars other than me unless warranty work. Our ECMs in theory should not have the engine go rich enough to blow visible smoke. Most cars unless they have been chipped are always on the verge of being lean. It’s possible to do a differential compression check to verify sealing integrity of the rings and the seals on the valve stems. Not sure shops these days know how to do this for its sort of old school. Aircraft mechanics still do this on piston engines for it checks leak down rate to allowed specs. Another option might be to borescope the intake manifold and each cylinder looking for adverse amounts of caked on carbon deposits in a cylinder. To pull heads for a valve job or change piston rings is an expensive proposition when a shop does all the work. Unless your keeping the car for 3 or 4 years I’d probably not worry too much over some smoke as long as you pass inspection here and watch your oil levels.

 

[SuperKing]

Is that normal?

It's completely normal. All cars run rich at full throttle to reduce the chances of knock. While it's possible for the manufacturer to come up with a cleaner burning tune, they usually don't because these are consumer vehicles that need to last 250k miles. You'll rarely see these clouds coming out of something like a Lamborghini because they're tuned for performance instead of longevity so it'll make use of the extra fuel to make more HP.

 

[glennk]

That cloud of smoke is burning rich at full throttle, it's not oil. It's kinda brownish/black in colour, if it was oil it'd be blue.

High amounts of soot, due to rich run is normal.

 

[glennk]

Sorry, I do not. I rarely have anyone work on my cars other than me unless warranty work. Our ECMs in theory should not have the engine go rich enough to blow visible smoke. Most cars unless they have been chipped are always on the verge of being lean. It’s possible to do a differential compression check to verify sealing integrity of the rings and the seals on the valve stems. Not sure shops these days know how to do this for its sort of old school. Aircraft mechanics still do this on piston engines for it checks leak down rate to allowed specs. Another option might be to borescope the intake manifold and each cylinder looking for adverse amounts of caked on carbon deposits in a cylinder. To pull heads for a valve job or change piston rings is an expensive proposition when a shop does all the work. Unless your keeping the car for 3 or 4 years I’d probably not worry too much over some smoke as long as you pass inspection here and watch your oil levels.

Might have to hire you after my warranty is up. The dealers are a rip for basic maintenance. Can't imagine what it will be like after 100,000 miles.

 

[skipgen]

High amounts of soot, due to rich run is normal.

My 5.0 has almost 94k on it - I've never noticed soot/smoke out of the back at full throttle.

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