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New Version of PCV

Gorilla57

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Same thing happens without catch can, it's why I want ot see what they have changed in this new PCV
True, but a catch can will hold more oil than just the line alone. I run a can, but always drain it before I go wheeling. Luckily, mine has never had a lot in it and I’ve done some steep vertical climbs.

I’m with ya though. Really wanna see if there’s an improvement in the PCV.
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Gear_AU

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True, but a catch can will hold more oil than just the line alone. I run a can, but always drain it before I go wheeling. Luckily, mine has never had a lot in it and I’ve done some steep vertical climbs.

I’m with ya though. Really wanna see if there’s an improvement in the PCV.
The top of the bank holds way more oil than the catch can when on the angle, the catch can fills very quickly and becase it's at that angle as well it has reduced capacity too.

The current Teraflex setup stops the oil ingestion on the angles,but doesn't help with the excessive oil in normal use, I want to see what this PCV does for that.
 

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will this prevent hydro lock or contribute to it ? as when oil enters the cylinders due to high angles ?
The reason for the TSB and potential hydrolock would both be caused by the valve sucking oil into the intake tract so it "should" help in both scenarios.

If anyone is interested we will sell one at cost so that they can present their findings here. Shoot me a PM with your email address if interested.

- Benny
 

Gear_AU

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The reason for the TSB and potential hydrolock would both be caused by the valve sucking oil into the intake tract so it "should" help in both scenarios.

If anyone is interested we will sell one at cost so that they can present their findings here. Shoot me a PM with your email address if interested.

- Benny
I helps until the catch can is full or the drain is covered by oil when on angle.

Jeep Wrangler JL New Version of PCV 20230410_144049
 

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There is an Australian Jeep 3.6 that had a catch can installed that Jeep said caused his hydrolock problems , so they denied his repairs . is this one approved by FCA ?
No, If its 3rd party/aftermarket it would not be approved. I have not seen the terraflex offerings but I would imagine someone has or can build a catch can system with a check valve in place that would prevent it from feeding your intake oil.

- Benny
 

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Gear_AU

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This is my RHD setup with the Teraflex kit. The circled part is the check valve. I do want to put a catch can inline to help with normal driving conditions unless the new PCV helps in those conditions.
Jeep Wrangler JL New Version of PCV 20230425_154341

Jeep Wrangler JL New Version of PCV 20230425_154332
 

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I'm no expert on PCV systems here but I would question the size of the canister used here, If this accumulates any substantial amount of oil what is preventing it from getting sucked into the vacuum port rather than the oil fill housing. Also the angle of the canister would seem to make it worse at containing oil and when in an incline it would almost be horizontal.

Its very different in design than the can I linked to.

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Gear_AU

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I'm no expert on PCV systems here but I would question the size of the canister used here, If this accumulates any substantial amount of oil what is preventing it from getting sucked into the vacuum port rather than the oil fill housing. Also the angle of the canister would seem to make it worse at containing oil and when in an incline it would almost be horizontal.

Its very different in design than the can I linked to.

- Benny
That's not a catch can it's just the check valve. It's a metal ball in a channel, when level ground it's open, when on an angle (noise up) it moves to block this path.
 

The Last Cowboy

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I helps until the catch can is full or the drain is covered by oil when on angle.

20230410_144049.jpg
Ouch! I take it that you avatar pic was taken about the time this happened?
 

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Gear_AU

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Ouch! I take it that you avatar pic was taken about the time this happened?
No, probably 15k kms before. I had the ingestion on slopes around 6 times before it randomly decided to let go driving down the highway.
 

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That's not a catch can it's just the check valve. It's a metal ball in a channel, when level ground it's open, when on an angle (noise up) it moves to block this path.
I see therefore there is no reservoir at any point in the system. FCA denied your warranty claim with this system in place or another?
 

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Ahhh, engines these days. The machining is too precise and the tolerances are too tight. What ever happened to the good old days of sloppy engines that used a lot of oil. This sort of tragedy would have never happened. :LOL:
 

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I see therefore there is no reservoir at any point in the system. FCA denied your warranty claim with this system in place or another?
UPD catch can. I wasn't running this setup until my new motor, the Teraflex kit out of the box doesn't mount into RHD. You can read the full report here
 
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Gear_AU

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Ahhh, engines these days. The machining is too precise and the tolerances are too tight. What ever happened to the good old days of sloppy engines that used a lot of oil. This sort of tragedy would have never happened. :LOL:
I think the JK 3.6 gets away with it as it's lower compression. I'm thinking in the JL everytime it happens it's doing a little bit of damage to the rod, combined with the pinging in normal conditions it was only a matter of time...
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