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theksmith

Late to the Party: theksmith's 2016 JK Unlimited Rubicon (Gadget)

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On 11/23/2020 at 6:00 PM, ob1jeeper said:

I'm probably late to this conversation, as yiou likely have it all back together by now...   But is there any oil in the intake system upstream from the PVC ?    (IE:  Do you see traces of oil in the intake closer to the air filter ?... )

 

It appears there may be a trace of dirt/dust in the oil film that I see in the manifold runners??.   Which begs the question...  What airfiltering system have you installed?  (sorry, did not re-read the 60-odd pages to get that background info)...  

 

that dirt in the intake was from this summer when my air filter had come loose for an unknown amount of time, good eye.

 

 

there's no oil in the air intake before the throttle body (where the crankcase fresh air in tube connects). rather it all seems to be coming from the PCV valve directly into the intake manifold after the throttle body. upon more research it would seem that is perfectly normal and common with this engine - even to the point of having the inside of the manifold completely coated in oil.

 

Joe at On Point Performance & Offroad told me the 3.6L draws a high vacuum on deceleration and i guess a fair bit of oil mist makes it past the factory oil-air separator no matter what.

 

my intake valves did not appear to have a bunch of carbon build-up (as far as i could see them when the manifold was off). also my oil level has never noticeably lowered between oil changes.

 

all signs point to there NOT being any issue here, however i'm still going to do 4 things...

 

  1. try again to replace that PCV myself (in case it's stuck open or the internal seal is bad). Joe let me know to remove the battery tray to access it better.
  2. send Blackstone Labs a new oil sample for analysis. they will be able to tell if i'm getting excessive blow by (worn rings).
  3. install an inexpensive catch-can between the PCV and intake manifold so i can see just how much oil is getting back in.
  4. run a can of Mopar combustion chamber cleaner though. i've had noticeable results with it on previous vehicles, and Gadget is at nearly 110k miles already!

 

 

 

 

 

Edited by theksmith
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Good to hear you are not having oil come in above the PCV connection...   If I were a betting man, I'd say that this trace amount of oil in the intake is not worry-worthy item, and it will continue to provide you excellent long-term service...  ;)

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Gadget was feeling a little down-n-dirty compared to her new boujee roomate, so she got a mini-detail at the carwash today!

 

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Kris, did you happen to notice an increase in oil pressure since you fixed the leak?

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8 hours ago, johnpa said:

Kris, did you happen to notice an increase in oil pressure since you fixed the leak?

 

no, probably just because it varies so much that it would be really hard to tell... if it's warmed up i might see as low as 22psi at idle - but then hit 99psi if i floor it.

Edited by theksmith

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belly slide

 

i used the black friday/cyber monday sales to grab a Clayton JK Transfer Case Skid that i had been eyeing for a while. it already showed up and i got it painted and installed yesterday.

 

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it mainly replaces this factory t-case skid, which has been plenty strong but the new one works with Clayton's other JK skids to tie everything together for a smooth under-belly with no major bolt-heads, holes or bars to get hung up on.

 

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that factory skid was about 15lbs and the new one is 58, for a net increase of 43 pounds - ouch! armor is the one thing i'm willing to go heavy on though and Clayton's products can really take a beating. if you're not planning to do extreme trails, then you'd be fine with much lighter products. 

 

at least the weight is low on the rig!

 

 

just one more piece...

 

i plan to eventually get their gas tank skid to complete the set. mine is a wrecked mess, and that's one reason i went with the Clayton stuff - they are one of only 2 skid systems that fully replace the factory tank skid.

 

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their tank skid is nearly $1k though, so it will be a while before my undercarriage looks like this:

 

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for now here she is with the new belly:

 

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new project

 

my next project will be making a custom plate to tie my water tank skid into this t-case skid so there's not a big hole between them to get stuck on a boulder. and yes, that did happen to Gadget once already!

 

i want to design it so emergency fluids can be stored in this space too, which will keep their extra weight down low and centered.

 

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Edited by theksmith
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