melman8r
Well-Known Member
Joe,(NEVER RETURN COLLECTED OIL BACK INTO THE ENGINE)
The two small screws are gently tightened as they are designed for the customer to be able to remove so they can install the lower portion of the diffuser on the dirty/pcv side of the catch can. Also, the collected contents contains fuel and oil and should not be returned as the fuel that gets into the crankcase during operation will evaporate much faster and you never want to return oil with room temperature gasoline as it can reduce lubrication of the internals during startup and it only takes one time to scar or cause premature wear on bearing surfaces.
So please remember that its never worth it to try and reuse oil from your catch can after it has sat in the can over time. If the vehicle has a system design to recirculate the contents daily and when the engine is at temperature that would be a different story and considerable. Otherwise dump that few ounces of oil collected and just add fresh as the fresh is always better to top off your existing oil with.
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UPR Catch Can, Breather Tank, and Check Valve information
1. UPR Catch Can Maintenance
Check your catch can every 500 miles for the first few oil changes to get
to know your vehicles Oil consumption.
Never return collected oil back into the engine.
2. O-ring Protection / Tightening Catch Can
Do not over tighten your Catch Can as it can stretch or tear the O-ring or
even ruin the threads and seize your catch can shut. Extreme weather
conditions and or handling can also damage O-rings.
Replacements can be purchased at UPRproducts.com
3. Check Valve Operation
Check Valves always face away from the catch can. Once Check Valves
are opened or taken apart this will break the seal and potentially lose parts.
4. Plug n Play™ Fitting Protection > Female Fittings <
To R&R UPR plug and play fittings keep them parallel to the Male fitting to
avoid damaging internal O-rings. Push/Squeeze to remove, depending on
style. Clips are not removable and will need to be replaced if taken apart.
Replacements can be purchased at UPRproducts.com
5. Catch Can Fitting Maintenance > Male Fittings <
You will need to put a rubber hose over the fitting to protect them and grip
them with a pliers. Use Teflon tape when installing to seal threads.
Replacements can be purchased from UPR.
6. Weather conditions
Cold weather maintenance, always drain contents after driving to avoid
freezing overnight. You can pour hot water into the catch can to unfreeze contents
7. Catch Can Contents
Catch Cans are plumbed into the PCV line allowing Catch Can contents to be
smelled through the intake tube/airbox. Always check all connections are secure.
An oil/fuel smell is normal if you don’t empty your catch can daily.
8. Catch Can Flow Direction
The dirty line from PCV goes to the IN fitting. The clean line to the intake goes to
the OUT fitting. The IN is Top Center of all top fitting cans. The OUT is the silver
tip on all side mount cans.
5038 catch cans with Multi-Level diffuser run the lower chamber on PCV side.
You can easily switch the lower chamber of the diffuser to either side by R&R
the two screws and tightening.
9. Catch Can Fittings
All fittings should always have Teflon or thread sealer whenever needed.
Permatex Thread Sealant Recommended
(Call UPR Catch Can technical assistance 561-588-6630 ask for the Catch Can Man)
Thank you. I called and spoke to Steve today, he told me if I have a 2020 JL the can won't fit. I need to wait for the updated oil cap, please update us here when it is available. Thank you for all your assistance and guidance.
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