 Need An Oil Breather Suggestion |
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| kenshapiro2002 |
 Oct 10 2009, 06:38 PM
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#1
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Senior Member  Group: Members Posts: 1,443 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region  |
My oil breather hose just dead ends in my cooling "well". What a decent, affordable (like $50 or less) breather box that I can just vent into the atmosphere of the engine bay, pulling off the oil and not throwing it into my engine?
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| McMark |
Oct 12 2009, 12:04 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
QUOTE OK I'll ask the dumb question. What's the damage to vent only from the oil filler to the breather box, and not back into the heads (assuming there's no head vent)??? Thanks Bill Not a dumb question at all. Technically, you're not venting back into the heads, your venting the heads as well as the case. But if you have no head vents, you're not in a BAD position, you're just not in the best condition. Venting the case is necessary, venting the heads is preferable. The older your motor (more blow-by) and/or the higher you're revving, the more venting you need. |
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| SirAndy |
Oct 12 2009, 12:13 AM
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#3
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Resident German Group: Admin Posts: 41,889 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(McMark @ Oct 11 2009, 10:04 PM)  QUOTE OK I'll ask the dumb question. What's the damage to vent only from the oil filler to the breather box, and not back into the heads (assuming there's no head vent)??? Thanks Bill Not a dumb question at all. Technically, you're not venting back into the heads, your venting the heads as well as the case. But if you have no head vents, you're not in a BAD position, you're just not in the best condition. Venting the case is necessary, venting the heads is preferable. The older your motor (more blow-by) and/or the higher you're revving, the more venting you need. And just to confuse you even more, at lower rpm, the head ports actually have negative pressure, thus sucking in air and oil from the breather. The system needs to be open to the atmosphere somewhere, otherwise you're going to blow the main seals out of your engine. The idea is simply to not have a mist of oil all over your engine compartment. On the factory FI, the oil vapors are routed back into the air-filter and burnt. The breather boxes used with carbs are still open to the atmosphere, they're not closed. But they have a sponge inside to collect oil vapors which will condense and drain back into the engine when the motor is shut off or on idle. (IMG:style_emoticons/default/shades.gif) Andy |
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Posts in this topic
kenshapiro2002 Need An Oil Breather Suggestion Oct 10 2009, 06:38 PM
Racer Chris
a decent, affordable (like $50 or less) bre... Oct 10 2009, 08:12 PM
SirAndy
Why spend any money at all? Next time you change ... Oct 11 2009, 02:50 PM
kenshapiro2002 Looks better than that bean can. :D
Why spend... Oct 11 2009, 04:57 PM Racer Chris
Looks better than that bean can. :D
Looks like... Oct 11 2009, 06:26 PM kenshapiro2002 I'm just gonna stick a filtered cigarette on t... Oct 11 2009, 07:30 PM tomeric914
Looks better than that bean can. :D
The EMPI a... Oct 12 2009, 02:20 PM kenshapiro2002 They don't have tech inspectors in my neighbor... Oct 12 2009, 02:32 PM stephenaki
a decent, affordable (like $50 or less) br... Oct 18 2009, 10:56 AM tat2dphreak you can get little empi breathers for not much, lo... Oct 10 2009, 08:47 PM tat2dphreak here's the best pic I could find, I have the h... Oct 10 2009, 08:51 PM kenshapiro2002 Why would you want to move it to the back wall?
By... Oct 10 2009, 09:30 PM Racer Chris
Why would you want to move it to the back wall?
B... Oct 10 2009, 11:30 PM kenshapiro2002 Gotcha...thanks. Guess my engine has no vent tubes... Oct 11 2009, 07:23 AM Racer Chris
Gotcha...thanks. Guess my engine has no vent tube... Oct 11 2009, 09:39 AM kenshapiro2002 How do I do that while the engien is installed wit... Oct 11 2009, 11:52 AM Jeff Hail
Why would you want to move it to the back wall?
... Nov 15 2009, 02:49 AM tat2dphreak my reason for moving it to the back is so I can pu... Oct 11 2009, 09:36 AM kenshapiro2002 I have no insulation on my firewall.
my reason ... Oct 11 2009, 11:51 AM tat2dphreak you can vent the valve covers with fittings, which... Oct 11 2009, 01:03 PM ejm I've drilled and tapped the heads with the eng... Oct 11 2009, 02:02 PM kenshapiro2002 Yeah? How does one pull that off?
I've dri... Oct 11 2009, 02:25 PM Gint I've drilled and tapped the heads with the eng... Oct 11 2009, 04:21 PM tat2dphreak I think you'll have to block off some. Oct 11 2009, 08:27 PM kenshapiro2002 Chewing gum? Piece of potato?
I think you'l... Oct 11 2009, 08:54 PM tat2dphreak sure, use a potato... rest of us would use a rubbe... Oct 11 2009, 09:09 PM kenshapiro2002 If I can't find a suitable potato, I was going... Oct 11 2009, 09:19 PM kenshapiro2002 Where can I get a few of those? If not, whattaya t... Oct 18 2009, 09:39 AM bandjoey OK I'll ask the dumb question. What's the... Oct 11 2009, 11:04 PM tat2dphreak You probably have a small piece of hose laying aro... Oct 11 2009, 11:12 PM tat2dphreak Double post, damn phone Oct 12 2009, 07:03 AM kenshapiro2002 Where...where...? :WTF:
[b][color=#CC0000]Doubl... Oct 12 2009, 07:12 AM tat2dphreak
Where...where...? :WTF:
[b][color=#CC0000]Doub... Oct 12 2009, 09:22 AM pcar9146guy Even though this is used on a six, it's still ... Oct 12 2009, 07:41 AM kenshapiro2002 Nice. That's what I had in mind, but ordered a... Oct 12 2009, 08:21 AM agentblr Another dumb question: why did the 75-76 cars not ... Oct 12 2009, 01:57 PM rhodyguy with the empi version you will STILL have to find ... Oct 13 2009, 10:15 AM tat2dphreak you can get those at FLAPS. or the piece of hose :... Oct 18 2009, 10:07 AM stephenaki After reading through the entire thread I am of th... Oct 18 2009, 11:04 AM johnnie5 I mounted my breather on the rear wall of my engin... Oct 18 2009, 12:16 PM stephenaki
I mounted my breather on the rear wall of my engi... Oct 18 2009, 01:05 PM johnnie5
Nice, I like it, where'd you get the breather... Oct 18 2009, 02:36 PM bandjoey Anyone with pictures of drilled out valve covers s... Oct 18 2009, 12:31 PM Gint Anyone with pictures of drilled out valve covers s... Oct 18 2009, 08:18 PM jschaible Why is it important to have 2 vents to the rocker ... Nov 14 2009, 09:41 PM Vacca Rabite
Why is it important to have 2 vents to the rocker... Nov 15 2009, 08:31 AM ottox914 The CFR system is on the turbo 914, and quite simp... Nov 15 2009, 08:54 AM jschaible
The CFR system is on the turbo 914, and quite sim... Nov 15 2009, 10:17 AM Racer Chris
ottox914 - how can I access your CFR system post ... Nov 15 2009, 10:21 AM SLITS Heads were not vented on '75-'76 engines f... Nov 15 2009, 09:05 AM Racer Chris
5.5.) Vacuum to pull the oil vapors / droplets i... Nov 15 2009, 10:02 AM mbjarts I have the VW "bugpack" and it blows oil... Nov 22 2009, 09:01 PM r_towle
I have the VW "bugpack" and it blows oi... Nov 22 2009, 09:26 PM mbjarts
Possible.
Please post a pic of the setup, maybe ... Nov 23 2009, 12:42 PM r_towle
Possible.
Please post a pic of the setup, maybe... Nov 23 2009, 06:58 PM Kargeek
Cut down fan motor bracket and a VW aftermarket ... Nov 23 2009, 06:54 PM r_towle So,
I am about to put the CB Performance one in.
A... Nov 27 2009, 09:28 AM |
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