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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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 Posted: Tue Jul 16, 2019 6:54 pm Post subject: Breather box-Berg, CSP, CB?? |
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Bug, 1776 dp motor, Dellorto drla 40’s, generator stand.
Thoughts:
Is it better to have it mounted ON the motor or on the firewall? I would think on the motor ?
I like clean and simple. No wires and lines running everywhere. (KISS)
The cleaner the better but I understand function should take precedence over fashion.
I’m leaning toward the Berg oval or csp because they are black and blend in the engine compartment better.
Best place to get? (Read cheapest) haha |
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vwracerdave
Samba Member
Joined: November 11, 2004
Posts: 15309
Location: Deep in the 405
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| Posted: Tue Jul 16, 2019 6:58 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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You DO NOT need any breather box on a 1776. Put a $10 mini filter on the oil filler and your done.
http://vwparts.aircooled.net/Mini-Oil-Breather-EACH-p/mini-oil-breather.htm
If you think I'm full of shit and want one anyway then get whichever looks the sexiest to you.
_________________
2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK |
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76949
Location: Sneaking up behind you
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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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| Posted: Tue Jul 16, 2019 7:12 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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I DO NOT think you are full of shit. In fact I look to many of your thoughts when I’m considering a purchase. I guess you just saved me $200+...
When do people generally consider a breather box?
FWIW I hate the looks of them. More clutter in the engine compartment.
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ekacpuc
Samba Member
Joined: December 08, 2010
Posts: 1414
Location: ketchikan alaska
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| Posted: Tue Jul 16, 2019 7:13 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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I have the CB oil filler style. I had to RTV the seal, behind the screws and the nut where it attaches to the alternator stand. After that no leaks. I put one of those little breather filters up top too.
I think you can never have too much crank case ventilation but you can have too little. I have a fuel pump block off that's drilled/tapped going to the breather. |
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ekacpuc
Samba Member
Joined: December 08, 2010
Posts: 1414
Location: ketchikan alaska
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| Posted: Tue Jul 16, 2019 7:14 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| 67 Sunroof wrote: |
I DO NOT think you are full of shit. In fact I look to many of your thoughts when I’m considering a purchase. I guess you just saved me $200+...
When do people generally consider a breather box?
FWIW I hate the looks of them. More clutter in the engine compartment.
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When you stroke it.
If I was going to redo mine I might use just a $30 one instead BUT it was pretty easy to route the line to mine |
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Alstrup
Samba Member
Joined: July 12, 2007
Posts: 7221
Location: Videbaek Denmark
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| Posted: Wed Jul 17, 2019 4:48 am Post subject: Re: Breather box-Berg, CSP, CB?? |
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What Dave said.
But, I am NOT a fan of those small filters directly on the stock breater outlet.
2 things.
1. The area gets messed up with oil mist.
2. The system NEEDS a certain amount of hose volume to work properly. At least 5"
Last. Not that important for the engine, but annoying. If you let the breather air out in the open you can almost always smell it. That is why I would never let it out in the open unless it was/is an all out race engine. Route it to the aircleaner as it is on a stock engine. Then you also pollute less. |
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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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| Posted: Wed Jul 17, 2019 4:56 am Post subject: Re: Breather box-Berg, CSP, CB?? |
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I know on my scooters I use a pcv valve that lets the air vent one way only.
It’s supposed to be mounted as high as possible. Jaycee sells the oil cap with the barbed end. Could I just attach apcv valve to it and mount it in the right fender well like Glenn? |
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slalombuggy
Samba Member
Joined: July 17, 2010
Posts: 9147
Location: Canada
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| Posted: Wed Jul 17, 2019 5:12 am Post subject: Re: Breather box-Berg, CSP, CB?? |
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A PCV valve needs to be hooked up to a source of engine vacuum to work.
I use the CB breather. I like the fact that the filler now points to the rear of the car. Easier to get a decent sized funnel in it to fill the engine. But that's just me.
brad |
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pupjoint
Samba Member
Joined: May 23, 2007
Posts: 1140
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| Posted: Wed Jul 17, 2019 11:58 am Post subject: Re: Breather box-Berg, CSP, CB?? |
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i have both Berg and CSP. i have had the Berg for 20 years and another Berg for 5 years.
i like the CSP better. |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76949
Location: Sneaking up behind you
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| Posted: Wed Jul 17, 2019 11:58 am Post subject: Re: Breather box-Berg, CSP, CB?? |
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| pupjoint wrote: |
i have both Berg and CSP. i have had the Berg for 20 years and another Berg for 5 years.
i like the CSP better. |
Can you give details?
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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pupjoint
Samba Member
Joined: May 23, 2007
Posts: 1140
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| Posted: Wed Jul 17, 2019 12:16 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| Glenn wrote: |
| pupjoint wrote: |
i have both Berg and CSP. i have had the Berg for 20 years and another Berg for 5 years.
i like the CSP better. |
Can you give details? |
CSP is made of aluminum TIG welded, lighter, the base that bolts to the generator uses a viton o-ring that seals better, they use the stock type cap with cork gasket, the fitting bungs with NPT female are welded so there is more flexibility in plumbing.
issues i have with Berg is the top cap. the breather cap that i have is sprung steel sometimes can be a PITA to open and this is a 20 years old breather i got new. the other berg breather rounded style uses a push/pull cap and i think can be made better.
i am still using all 3. of course the CSP is pricier. non of them leaks at the base. |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76949
Location: Sneaking up behind you
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| Posted: Wed Jul 17, 2019 12:19 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| pupjoint wrote: |
| Glenn wrote: |
| pupjoint wrote: |
i have both Berg and CSP. i have had the Berg for 20 years and another Berg for 5 years.
i like the CSP better. |
Can you give details? |
CSP is made of aluminum TIG welded, lighter, the base that bolts to the generator uses a viton o-ring that seals better, they use the stock type cap with cork gasket, the fitting bungs with NPT female are welded so there is more flexibility in plumbing.
issues i have with Berg is the top cap. the breather cap that i have is sprung steel sometimes can be a PITA to open and this is a 20 years old breather i got new. the other berg breather rounded style uses a push/pull cap and i think can be made better.
i am still using all 3. of course the CSP is pricier. non of them leaks at the base. |
I powder painted my Berg so it matches the tin. I used Right Stuff to seal the breather to the base... never a leak. I have a non-vented cap and never had a problem with it.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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pupjoint
Samba Member
Joined: May 23, 2007
Posts: 1140
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| Posted: Wed Jul 17, 2019 12:23 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| Glenn wrote: |
| pupjoint wrote: |
| Glenn wrote: |
| pupjoint wrote: |
i have both Berg and CSP. i have had the Berg for 20 years and another Berg for 5 years.
i like the CSP better. |
Can you give details? |
CSP is made of aluminum TIG welded, lighter, the base that bolts to the generator uses a viton o-ring that seals better, they use the stock type cap with cork gasket, the fitting bungs with NPT female are welded so there is more flexibility in plumbing.
issues i have with Berg is the top cap. the breather cap that i have is sprung steel sometimes can be a PITA to open and this is a 20 years old breather i got new. the other berg breather rounded style uses a push/pull cap and i think can be made better.
i am still using all 3. of course the CSP is pricier. non of them leaks at the base. |
I powder painted my Berg so it matches the tin. I used Right Stuff to seal the breather to the base... never a leak. I have a non-vented cap and never had a problem with it. |
yes non vented cap is the best. |
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Brian_e
Samba Member
Joined: July 28, 2009
Posts: 3294
Location: Rapid City, SD
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| Posted: Wed Jul 17, 2019 1:20 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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I agree with Dave and Torben. No need for a box.
On my 2332cc in my bus I have a 6" hose with the mini filter on it. All on a stock OE breather tower. Works perfect and never leaks.
I think the only time someone REALLY needs a breather box is they are turning 7500+rpm on a big engine, or their rings were not seated correctly or beyond worn out.
Brian
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jason
Samba Member
Joined: August 07, 2002
Posts: 3444
Location: Garage
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| Posted: Wed Jul 17, 2019 1:25 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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If it’s not vented, it’s not a breather box. It’s a box. I have 3 Bergs, the vented caps suck. Newest one is easier to the take cap of though, no more rubber.
Leakage dictates breather box or not. 2% of 1776 is pretty close to 2% of 1600. |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76949
Location: Sneaking up behind you
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| Posted: Wed Jul 17, 2019 1:30 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| jason wrote: |
| If it’s not vented, it’s not a breather box. It’s a box. |
Mine's vented, just doesn't have a vented cap.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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jason
Samba Member
Joined: August 07, 2002
Posts: 3444
Location: Garage
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| Posted: Wed Jul 17, 2019 2:54 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| One hose on a stock engine will breathe the same as one hose on a berg box. You’re not getting any benefit from it. |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76949
Location: Sneaking up behind you
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| Posted: Wed Jul 17, 2019 2:57 pm Post subject: Re: Breather box-Berg, CSP, CB?? |
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| jason wrote: |
| One hose on a stock engine will breathe the same as one hose on a berg box. You’re not getting any benefit from it. |
But adding vents for the valve covers and having the end of the hose in a low pressure area helps with scavenging.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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| Posted: Thu Jul 18, 2019 6:04 am Post subject: Re: Breather box-Berg, CSP, CB?? |
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Doesn’t valve lash overlap achieve this too?
Do people do that on VW motors? The exhaust valve opens slightly while the intake valve is closing to help “suck” some of the spent gas out through the exhaust?
And reversion chambers in the headers do this too right? |
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