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Best Way to Empty a Catch Can

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Old Jan 25, 2015 | 12:05 AM
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Default Best Way to Empty a Catch Can

I installed a Chrome catch can similar to the one in the picture below. What is the best or recommended way to check and empty the excess oil? Should I open the petcock valve on the bottom (by screwing it up, closer to the can) and let it drain out into a container or should I remove the can completely after disconnecting the hoses and unscrewing the top cap?



Thanks!

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Old Jan 25, 2015 | 12:18 AM
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If you've got the room, I'd just place a plastic cup under the petcock valve, open the valve and drain the trapped oil. I wouldn't go to the trouble of removing the catch can from the car, at least not every time. Perhaps every so often remove it just to inspect that everything inside is OK (not sure what the inside of that product looks like as I have an Elite Engineering one on my car).

Question is, what does the manufacturer of the catch can recommend?
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Old Jan 25, 2015 | 12:26 AM
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Originally Posted by Vetteman Jack
If you've got the room, I'd just place a plastic cup under the petcock valve, open the valve and drain the trapped oil. I wouldn't go to the trouble of removing the catch can from the car, at least not every time. Perhaps every so often remove it just to inspect that everything inside is OK (not sure what the inside of that product looks like as I have an Elite Engineering one on my car). Question is, what does the manufacturer of the catch can recommend?
Thanks. I bought it from CCA and I'm not sure who the actual manufacturer is. The only instructions I have were regarding the installation.
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Old Jan 25, 2015 | 04:12 AM
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I just undue the petcock and drain any oil. Have never pulled the can apart.
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Old Jan 25, 2015 | 10:52 AM
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The petcock failed on mine on it's second use, it was replaced with a miniature ball valve and barb fitting so that a small hose can be attached and the oil drained into a container.
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Old Jan 25, 2015 | 11:44 AM
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I have one very similar to yours if not the same one. I couldn't get mine in chrome so I sent it out for the chroming. I just open the valve on the bottom and drain. Have never taken it off since install.

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Old Jan 25, 2015 | 12:32 PM
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R these cc worth anything or just another fancy mod?
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Old Jan 25, 2015 | 12:37 PM
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Originally Posted by Vetteman Jack
If you've got the room, I'd just place a plastic cup under the petcock valve, open the valve and drain the trapped oil. I wouldn't go to the trouble of removing the catch can from the car, at least not every time.

Question is, what does the manufacturer of the catch can recommend?
Bingo

Or

- Unscrew the top
- Roll up some paper towels
- Insert into the can and let absorb

You should only get 2-3 oz per oil change for street driving - Track
driving can get you 2-3 oz per session

Regards
Chip
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Old Jan 25, 2015 | 03:06 PM
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Originally Posted by mstromquist
I have one very similar to yours if not the same one. I couldn't get mine in chrome so I sent it out for the chroming. I just open the valve on the bottom and drain. Have never taken it off since install.

Thanks. My set-up is very similar to yours including braided hose lines. My challenge is that the can petcock is right above the one braided line so it's a tight fit. I think I can work around it, however once the petcock is screwed up towards the can, how much flow should I expect? I want to make sure I don't make too much of a mess.

Originally Posted by CCA Corvette Parts
Bingo

Or

- Unscrew the top
- Roll up some paper towels
- Insert into the can and let absorb

You should only get 2-3 oz per oil change for street driving - Track
driving can get you 2-3 oz per session

Regards
Chip
Thanks Chip. I use mine for street driving and the occassional spirited exercise on back roads so I'm not expecting a lot. I just don't want to make a mess.

Last edited by MSG C5; Jan 25, 2015 at 07:36 PM.
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Old Jan 25, 2015 | 03:09 PM
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Originally Posted by bjones7131
R these cc worth anything or just another fancy mod?
They provide an outlet for unused oil deposits that would normally route through your intake/exhaust. Below is a link that sums up the benefits of oil catch cans.

http://oilcatchcan.com/

The chrome cans do add to the engine bling appeal, but you can order them in other finishes, etc.
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Old Jan 25, 2015 | 03:35 PM
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Turkey baster. It works real fast.
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Old Jan 25, 2015 | 03:55 PM
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I have not installed mine yet but was thinking of a hose on the bottom to make it easier to drain ??? ( route it where you like)
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Old Jan 25, 2015 | 04:05 PM
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Thanks for all the feedback guys. I was able to work around the braided hoses I installed and able to squeeze in a plastic dixie cup underneath the petcock in order to screw it up closer to the bottom of the can and drain the captured oil. I only needed a shop rag to wipe off a little bit of residue. Pretty simple process and I'm glad I didn't need to remove the can or disconnect the hoses. Below are some pics as to what I captured in weekend street driving since my last annual oil change.





All cleaned and buttoned back up.

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Old Jan 25, 2015 | 06:26 PM
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Also remember, there is a set screw on the bracket, you can loosen
the set screw and lift the can up a few inches without uninstalling.

That should give you enough room to get a Dixie cup under without
to much effort

Regards
Chip
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Old Jan 25, 2015 | 09:15 PM
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Originally Posted by CCA Corvette Parts
Also remember, there is a set screw on the bracket, you can loosen
the set screw and lift the can up a few inches without uninstalling.

That should give you enough room to get a Dixie cup under without
to much effort

Regards
Chip
That is exactly how I empty mine.

I don't even bother with the set screw .
I leave it loose on the can.
The can easily slides up enough to get loosen the pet **** & put a container under it for draining.
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Old Jan 26, 2015 | 11:26 AM
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Originally Posted by MSG C5
Thanks for all the feedback guys. I was able to work around the braided hoses I installed and able to squeeze in a plastic dixie cup underneath the petcock in order to screw it up closer to the bottom of the can and drain the captured oil. I only needed a shop rag to wipe off a little bit of residue. Pretty simple process and I'm glad I didn't need to remove the can or disconnect the hoses.
Sorry I didn't respond sooner. I work the graveyard shift and sleep during the sun up time. You did it the way I do though.
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Old Jan 26, 2015 | 11:31 AM
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Bit off topic here but I just noticed your fuse cover ****. Where did you find that little piece if you don't mind me asking?
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Old Jan 26, 2015 | 11:55 AM
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Originally Posted by bjones7131
R these cc worth anything or just another fancy mod?
This is what was in my intake when I bought my car it had 5300 miles, I have not yet checked the intake after installing my catch can, I have run it for 3 summers.

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Old Jan 26, 2015 | 12:08 PM
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thanks for the info my pet **** didn't work the last time I changed oil and it was a pain to remove and empty.
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Old Jan 26, 2015 | 01:16 PM
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Originally Posted by mstromquist
Bit off topic here but I just noticed your fuse cover ****. Where did you find that little piece if you don't mind me asking?
It's a stainless steel battery den cover from American Car Craft that I had powder coated black.
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