Rx Catch Can hissing sound - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Russell James · 04-09-2011, 10:04 AM

I'm installing one right now on an LS3. I need to turn the elbows 180 deg to face the engine. Do they both turn? I got the center one turned but the outer one won't budge. Should it turn counterclockwise?

IndeedSS1 · 04-09-2011, 10:09 AM

Quote:

Originally Posted by Russell James

I'm installing one right now on an LS3. I need to turn the elbows 180 deg to face the engine. Do they both turn? I got the center one turned but the outer one won't budge. Should it turn counterclockwise?

The center one is just a press fit as you noticed and can rotate to any position. The outer one with the check valve is threaded. You could turn it out but will have to pull off the center fitting first.

IndeedSS1 · 04-09-2011, 10:11 AM

Quote:

Originally Posted by TAPSHIFT

fyi.....I've just received a PM from Tracy who is reviewing this thread. He is sending me a replacement fitting that does not contain a check valve. Hopefully this will elliminate the noise I am experiencing.

That didn't work for ssmike. Tracy sent me one too but I've not tried it out yet.

SC2150 · 04-09-2011, 10:15 AM

Yes, turn it counter clockwise as it is threaded all the way in. Can you post a picture so I can see what direction is best?

Oxtar41 · 04-09-2011, 10:22 AM

Mine did it alot too when it was first installed and now I dont hear it near as much. Maybe I just tune it out but it has gotten better over time for me atleast.

ssmike · 04-09-2011, 10:33 AM

Just to clarify for Tracy, there are 2 seperate noises. The internal valve make a ball bearingish rattle which is resolved by replacing the valve fitting with a non-valve fitting. This removes the rattle but as Tracy has said you will eliminate the anti-reversion function (not an issue with me). The second noise is the hissing that I have described and that is my present issue.

Russel James, I had the same thing when I got mine, the fittings were facing the wrong direction. Just do as IndeedSS1 said and you'll be fine!

I hope there is someone in Fl that has the probelm so Tracy can witness it himself!

TAPSHIFT · 04-09-2011, 10:43 AM

Quote:

Originally Posted by SC2150

With thousands of these out there we have never had any leaks but I still want to have a car with the symptom come in so I can see what your describing. That will ne the only way I can figure out if it is not the checkvalve and something else.

Even without the checkvalve the can is the most effective in trapping oil and preventing oil pull through on the market but I need someone with the issue to bring their car in.

Tracy. Any chance you got a bad batch of the check-valve fittings? As you say you have a ton of these out there in operation. I can't imagine that all those are creating the noise that is coming from mine. It is downright embarassing sitting at a red light and having the rattle/vibrating noise be so evident over the engine and exhaust ( and I am running HI-FLOW Cats and Catback ).

67motorcat · 04-09-2011, 10:47 AM

My noise is not originating from the check valve on top of the can.
I can hear the ball inside the valve doing it's thing,but that is not it.
As stated earlier, changing that check valve to a straight fitting makes no difference.

Again,it sounds like it is coming from inside the can and reverberating through the hoses.
Went out to the garage to listen again.
I'm wondering if the emulsion tube inside is coming loose now?

.........

hansenp · 04-09-2011, 10:56 AM

Oh great never heard of this issue until this thread and after I dropped 268 for this can and all the goodies that can come with it . You guys got me worried and mine should ship soon

67motorcat · 04-09-2011, 10:57 AM

Ok,
Went out to the garage to look at it again.
I found that if you rapidly tap the side of the can you can hear the ball rattleing inside the check valve,it is real "loose"

I don't remember hearing a rattle when I installed it.
Is there supposed to be a spring or something that hold the ball in the closed position when not running?

I think it might be coming from there afterall.
Someone go tap the side of their can.

ssmike · 04-09-2011, 11:15 AM

67motorcat, If you still have the checkvalve installed that's what the rattle noise is! It WILL make noise if you tap on the can. It's a free floating steel insert in the outlet fitting that will close and open depending on the vacuum from the system. If you object to the rattling Tracy can send you a output fitting without the valve, which is what I did. As I've stated in earlier posts, my issue right now is the loud hissing noise at idle.

67motorcat · 04-09-2011, 11:16 AM

Took the thing completlely out of the car.
I found,maybe,when I rotated the valve to be pointing in the right direction during the intial install the seal to the can may have been compromised.

The valve rattles freely.No spring and looks much like an old school PVC valve on the inside.That combined with the slight vacum leak may amplify the noise?

The problem is when the valve is oriented in the direction it needs to go,it doesn't sit down flush to the top of the can.A few threads are showing.

ssmike · 04-09-2011, 11:19 AM

Quote:

Originally Posted by 67motorcat

Took the thing completlely out of the car.
I found,maybe,when I rotated the valve to be pointing in the right direction during the intial install the seal to the can may have been compromised.

The valve rattles freely.No spring and looks much like an old school PVC valve on the inside.That combined with the slight vacum leak may amplify the noise?

The problem is when the valve is oriented in the direction it needs to go,it doesn't sit down flush to the top of the can.A few threads are showing.

Yep, same with mine. I used a small amount of teflon tape so I know it's sealed good but it didn't make any difference!

67motorcat · 04-09-2011, 11:21 AM

Quote:

Originally Posted by ssmike

67motorcat, If you still have the checkvalve installed that's what the rattle noise is! It WILL make noise if you tap on the can. It's a free floating steel insert in the outlet fitting that will close and open depending on the vacuum from the system. If you object to the rattling Tracy can send you a output fitting without the valve, which is what I did. As I've stated in earlier posts, my issue right now is the loud hissing noise at idle.

Ok cool.
I think the seal where it enters the can is leaking.I need to keep the check valve because I going to be putting a Maggie soon.

The cut threads on the can don't look like they mesh well with the plastic threads of the valve.
Once they are loosened they are not tight anymore.Maybe some kind of thread sealer needs to be added?

04-09-2011, 10:47 AM	#36
67motorcat Blown Cool Breeze Drives: 2011 Black on Black 2SS M6 Join Date: Jul 2010 Location: Pinehurst NC Posts: 1,027	My noise is not originating from the check valve on top of the can. I can hear the ball inside the valve doing it's thing,but that is not it. As stated earlier, changing that check valve to a straight fitting makes no difference. Again,it sounds like it is coming from inside the can and reverberating through the hoses. Went out to the garage to listen again. I'm wondering if the emulsion tube inside is coming loose now? ......... __________________ 2011 Black on Black 2SS M6 Had a 2010 IBM 2SS M6 Enjoy life.Think of all the women on the Titanic who passed up dessert.

04-09-2011, 10:56 AM	#37
hansenp Drives: 2010 Camaro 2 SS/RS Join Date: Sep 2009 Location: San Francisco, California Posts: 416	Oh great never heard of this issue until this thread and after I dropped 268 for this can and all the goodies that can come with it . You guys got me worried and mine should ship soon __________________ Roto-Fab CAI , Flowmaster American Thunder System MGW short shifter, Lexani custom painted LX15 wheels ,Pfadt strut tower brace, Technostalgia Led tailights, Rx catch can, Vmax TB

04-09-2011, 10:57 AM	#38
67motorcat Blown Cool Breeze Drives: 2011 Black on Black 2SS M6 Join Date: Jul 2010 Location: Pinehurst NC Posts: 1,027	Ok, Went out to the garage to look at it again. I found that if you rapidly tap the side of the can you can hear the ball rattleing inside the check valve,it is real "loose" I don't remember hearing a rattle when I installed it. Is there supposed to be a spring or something that hold the ball in the closed position when not running? I think it might be coming from there afterall. Someone go tap the side of their can. __________________ 2011 Black on Black 2SS M6 Had a 2010 IBM 2SS M6 Enjoy life.Think of all the women on the Titanic who passed up dessert.

04-09-2011, 11:16 AM	#40
67motorcat Blown Cool Breeze Drives: 2011 Black on Black 2SS M6 Join Date: Jul 2010 Location: Pinehurst NC Posts: 1,027	Took the thing completlely out of the car. I found,maybe,when I rotated the valve to be pointing in the right direction during the intial install the seal to the can may have been compromised. The valve rattles freely.No spring and looks much like an old school PVC valve on the inside.That combined with the slight vacum leak may amplify the noise? The problem is when the valve is oriented in the direction it needs to go,it doesn't sit down flush to the top of the can.A few threads are showing. __________________ 2011 Black on Black 2SS M6 Had a 2010 IBM 2SS M6 Enjoy life.Think of all the women on the Titanic who passed up dessert.

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04-09-2011, 10:04 AM	#29
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	I'm installing one right now on an LS3. I need to turn the elbows 180 deg to face the engine. Do they both turn? I got the center one turned but the outer one won't budge. Should it turn counterclockwise?

04-09-2011, 10:15 AM	#32
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Yes, turn it counter clockwise as it is threaded all the way in. Can you post a picture so I can see what direction is best?

04-09-2011, 10:22 AM	#33
Oxtar41 Drives: 700 rwhp 2010 SS Join Date: Sep 2010 Location: Garage.. Posts: 803	Mine did it alot too when it was first installed and now I dont hear it near as much. Maybe I just tune it out but it has gotten better over time for me atleast.

04-09-2011, 10:33 AM	#34
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,841	Just to clarify for Tracy, there are 2 seperate noises. The internal valve make a ball bearingish rattle which is resolved by replacing the valve fitting with a non-valve fitting. This removes the rattle but as Tracy has said you will eliminate the anti-reversion function (not an issue with me). The second noise is the hissing that I have described and that is my present issue. Russel James, I had the same thing when I got mine, the fittings were facing the wrong direction. Just do as IndeedSS1 said and you'll be fine! I hope there is someone in Fl that has the probelm so Tracy can witness it himself!

04-09-2011, 11:15 AM	#39
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,841	67motorcat, If you still have the checkvalve installed that's what the rattle noise is! It WILL make noise if you tap on the can. It's a free floating steel insert in the outlet fitting that will close and open depending on the vacuum from the system. If you object to the rattling Tracy can send you a output fitting without the valve, which is what I did. As I've stated in earlier posts, my issue right now is the loud hissing noise at idle.