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Oil around intake ports

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Old 06-20-2021 | 12:03 AM
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Default Oil around intake ports

Does this mean I need a oil catch can?
Old 06-20-2021 | 06:29 AM
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I think that is simply condensed oil vapor being pulled through the engine by the Positive Crankcase Ventilation system. I don't run a catch can on my 5.3 engine.

Rick
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Old 06-20-2021 | 06:30 PM
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Originally Posted by B52bombardier1
I think that is simply condensed oil vapor being pulled through the engine by the Positive Crankcase Ventilation system. I don't run a catch can on my 5.3 engine.

Rick
I figured that's what it was. I didn't know if a catch can would be beneficial. The plugs don't foul and it doesn't burn oil.
Old 06-20-2021 | 07:04 PM
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Sealed can will help to keep some of it from going back into the intake manifold.
Old 06-20-2021 | 08:09 PM
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How does the air get into the combustion chambers to mix with the injected fuel? Intake manifold.

What happens when you use the intake manifold to draw in air from the crankcase? You get the blow-by gases and the moisture from the heat of combustion mixing with the fresh air coming in from the air box.

What are the long term effects of this? Dirty/oily intake manifold, dirty intake and exhaust runners on the cylinder heads leading to coated valves.

Get the picture!
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Old 06-20-2021 | 09:10 PM
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How does the inside of the intake itself look? Are you running an aftermarket cam?
Old 06-21-2021 | 12:53 AM
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Originally Posted by LLLosingit
How does the inside of the intake itself look? Are you running an aftermarket cam?
I haven't checked in about a year. It was pretty oily in the intake when I cleaned the **** out of it previously. It's a stock LQ9 with stock cam.
Old 06-21-2021 | 12:56 AM
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Originally Posted by 01CamaroSSTx
Sealed can will help to keep some of it from going back into the intake manifold.
Do you have any recommendations for a can or will any sealed can do? There are cheap ones on Amazon and I know they can go for over $100 other places
Old 06-21-2021 | 08:25 AM
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That doesn't look so bad but personally I would run a catch can anyways. No harm in doing so tbh
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Old 06-21-2021 | 08:44 AM
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Oil on your valves is like running sand through them.. it will waste your valves and seats over time sharpening the valves like razors. Don't believe me research it for yourself. Anyone who doesn't run a catch can is a plain lazy fool
Old 06-21-2021 | 08:59 AM
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Originally Posted by Smitty454
Do you have any recommendations for a can or will any sealed can do? There are cheap ones on Amazon and I know they can go for over $100 other places
I've used the Norris catch can and it works. I'm sure there's cheaper ones out there but I like the design and if your going to run PCV then you should probably put one on.
Old 06-21-2021 | 09:01 AM
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You could also build a can. A lot of truck guys are doing that and they seem to hold up and work just fine
Old 06-21-2021 | 09:56 AM
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It's not rocket science. Basically it is a stopover to "drop the oil off" prior to getting sucked into the intake
Old 06-21-2021 | 07:43 PM
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Just saw this.

https://ls1tech.com/forums/market/1950249

Old 06-21-2021 | 11:51 PM
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Originally Posted by G Atsma
It's not rocket science. Basically it is a stopover to "drop the oil off" prior to getting sucked into the intake
Yes G, but like I said, there are some that are $30 and some that are $130. Whats the reason for that? Sorry Im not a catch can expert.
Old 06-22-2021 | 12:12 AM
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Originally Posted by Smitty454
Yes G, but like I said, there are some that are $30 and some that are $130. What's the reason for that? Sorry I'm not a catch can expert.
Good question. Unnecessary braided lines and anodized aluminum fittings for the detail-obsessed? Billet can? Go from there...
A $130 dollar puke can is mainly for those whose wallet far outshines their mental capacity. The $30 one, PROPERLY INSTALLED, will do the same job.
Old 06-22-2021 | 08:35 AM
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Originally Posted by G Atsma
Billet can?
B-b-but it's billet!!!!!
Old 06-22-2021 | 09:17 AM
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Originally Posted by shakenfake
B-b-but it's billet!!!!!
Saaa- LUTE!
Old 06-22-2021 | 09:48 AM
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OP I have a Mike Norris can that's anodized red that I no longer use. $60 plus shipping and PM if interested.
Old 06-22-2021 | 04:00 PM
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Originally Posted by G Atsma
Good question. Unnecessary braided lines and anodized aluminum fittings for the detail-obsessed? Billet can? Go from there...
A $130 dollar puke can is mainly for those whose wallet far outshines their mental capacity. The $30 one, PROPERLY INSTALLED, will do the same job.
Thanks G


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