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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
 Posted - Jun 01 2011 : 12:15:17 AM
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If I have a PCV valve going from the passenger side valve cover to the intake, do I need a breather cap on the drivers side?
Thanks a lot. |
If you don't have the time to do it right, when will you have the time to do it over? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 01 2011 : 11:51:30 AM
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| Generally not. There is usually enough flow through the single PCV and internal oil passages connect both sides of the engine. |
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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
Posted - Jun 01 2011 : 11:36:37 PM
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| So I can just replace the stupid breather, that sprays oil everywhere, with an oil cap? |
If you don't have the time to do it right, when will you have the time to do it over? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 05 2011 : 10:28:39 AM
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| If you have a breather or PCV on both valve covers than you need to retain them. If the breather is spraying oil, there may be a failed check valve or filter inside of it. Or the little baffle under the valve cover which keeps oil away from the breather hole is missing. |
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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
Posted - Jun 06 2011 : 01:16:53 AM
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"If you have a breather or PCV on both valve covers than you need to retain them."
So I do need both? That's confusing.
But if there is a breather, doesn't that count as a vacuum leak? As you said before, there is usually enough flow through a single PCV. From information from other various sources, I should either have two breathers, or one PCV. The breather is also quite old. |
If you don't have the time to do it right, when will you have the time to do it over? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 11 2011 : 11:07:14 AM
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How is the engine configured from the factory?
Retain that configuration. Replace the PCV if it isn't working, and the same with the breather. |
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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
Posted - Jun 16 2011 : 05:51:19 AM
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| I'm not sure. It's so hard to find an unmolested 350 even online. My dad installed new Edelbrock heads, intake, and carb. So I'm not sure what stock is supposed to look like or anything. |
If you don't have the time to do it right, when will you have the time to do it over? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 18 2011 : 10:35:26 AM
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| Oh, it's a 350. Most of the time I see them with dual breathers or dual PCV valves. But I'm not a V8 person so I can't say for sure. If it is blowing oil out of the valve, then it sounds like you have some aftermarket heads that don't have oil baffles inside. You can add a baffle to control the amount of oil expelled. However I'd still say to use a proper PCV setup at least on one side instead of just a breather. You need to circulate fresh air within the block to flush the nasties out. |
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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
Posted - Jun 18 2011 : 1:05:24 PM
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| I have an oil cap on one side and a PCV on the other but I need to clean it out some more. Should I use carb cleaner? |
If you don't have the time to do it right, when will you have the time to do it over? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 20 2011 : 2:37:46 PM
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Sorry, I mean "baffled valve covers" not "baffled heads".
Just replace the PCV. Chevy small block PCVs are only a few dollars at any parts store. Makes sense there is an oil cap on one side. Also, the PCV should end up going to a manifold port, not just open air. "Breathers" have not been used since the '60s due to emissions laws. |
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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
Posted - Jun 20 2011 : 3:13:16 PM
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PCV with a hose to an Edelbrock 650cfm carb. I might do that later. But first I need to tend to more pressing issues.
I was watching part 16 with a girl and the look on her face around the part with the Kerosene and Duct tape. ;-)
My dad wanted to get me an Xbox 360 as a graduation gift. I told him a welder would be more fun. |
If you don't have the time to do it right, when will you have the time to do it over? |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Jun 25 2011 : 10:10:18 AM
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| I'd recommend a welder as well. Some kind of 240V MIG welder would be the way to go. 120V units are fine, but most are limited to 90A so they're really only capable of welding up to 1/4". |
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Yerboogieman
Nobel Prize Winner
USA
577 Posts |
Posted - Jun 25 2011 : 9:26:34 PM
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Well, my dad is buying a 90A 120V AC MIG welder and an Auto-darkening helmet today. I don't mind much, and the reviews are really good. Some say they've welded up to 1/2in with strong welds. But really, 1/4 is good enough for me, as long as I have a welder.
First thing I want to do is replace the exhausts on my suburban with a bit more, Agressive ones. The 4-2-1 Doug Thorleys deserve better. I really think Racing Beat exhausts would be unique and sound cool, but I'm sure it would be frowned upon by a few people. It sounds great now, and works great, but I want something a bit louder. I just don't want it to sound like everyone elses car if I do replace the mufflers.
http://www.racingbeat.com/RX7-1993-1995/Exhaust-Components/16025.html
I was also thinking about exhaust dumps. http://www.iwdwebdesign.com/maxima/McCord1.JPG |
If you don't have the time to do it right, when will you have the time to do it over? |
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PCV valve/Breather cap
