We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Building a PCV System Breather Vent. was just a location where the crankcase could drawn in cool air. In most modern engines, the crankcase is integrated into the engine block. CFR Performance supplies high quality billet aluminum & chrome steel valve cover breathers and oil plugs that are designed to work with most Chevy, Ford and Mopar engine performance & dress up applications. excessive crankcase pressure is comp leaking by the rings usualy due to running rich and washing down cyclinders. Our site displays a very comprehensive array of Clk320 Crankcase Breather and relevant listings. So I have a 350 that had breathers in the valve covers, I want to install a PCV valve. out of the box carbs are notorious for this. Breathers with a pipe for a hose, have a PCV valve installed. The SO-CAL breather pictured is out of stock. So much that within 100 miles I would have 3/8 oil in the air cleaner. 1939-47 Dodge Pickup Truck Engine Oil Breather Crankcase Vent Tube 1-1/4 40 41 Nos Mopar. Chevy / GMC. Shop Online > Engine Components > Breathers, PCV Valves & Oil Caps. Just like the air you breathe, you want the air your car takes in to be flowing fresh and free of dirt, dust and foreign materials. FREE Shipping. Breathers remove the source of positive ventilation that repressurizes the POSTIVE CRANKCASE VENTILATION (PCV) valve. Order your parts online or pick them up in-store at your local Advance Auto Parts. Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy project. He said I should get rid of the stock crankcase breather and put on an aftermarket breather that collects the blowby oil in a can. I'm running the Ford Racing tall valve covers with baffles, and this is an issue I still have. 114174 - Genuine Volvo - PCV Breather System Kit - 9471644K. When it comes to your Chevrolet Corvette, you want parts and products from only trusted brands. Filter style 2 inch breather and pcv valve MCC213 Is A Good Choice For Any Muscle Car Era Engine Ford Chevy Mopar Pontiac Or Oldsmobile. A pair of breathers won't cut it. 22” hole, and a step the width of the groove in the grommet. 5's, (he just pulled his boss's 6. Nutter Racing Engines specializes in designing, manufacturing and selling standard and custom race engine oil pumps, hand crafted and built to racing specifications. What causes oil to blow out of the crankcase breather tube on a Harley 1340 cc motor when started after it has set - Answered by a verified Motorcycle Mechanic. Discover Chevy Valve Cover Breathers on sale right here with the biggest choice of Chevy Valve Cover Breathers anywhere online. Choose top quality brands Gates, Mr Gasket, Stant, Trans Dapt. Answer: The positive crankcase ventilation system, referred to as the PCV system, was one of the first pollution control devices to be used on engines. 6L GM Duramax at Diesel Power Products 2007 Chevy/GMC 6 Upgrading the crankcase breathers. These work well with most chrome steel or aluminum valve covers. As the RPM's rise the smoke increases, until its pooring out and out the exhaust. He said I should get rid of the stock crankcase breather and put on an aftermarket breather that collects the blowby oil in a can. Oil Fill, Breather, and PCV Information For PML Small Block Chevrolet Valve Covers 1 of 6 PML, Inc. 6pcs Crankcase Kit Engine Audi A4 1. Each cover is cast from the high quality aluminum and buffed to a mirror shine!To insure maximum performance all valve covers include baffle and hardware. Find auto PCV Valve & Breather Hoses for Chevy. 38 shipping. I’m not an expert by any means and both of you make a lot of sense to someone who is still a very young apprentice!. The primary cause of the problem on SBC is the fact it is nigh on impossible to locate a breather on the valve cover so you won't have at least one pushrod pumping oil directly at the bottom of the breather. This breather is round and is 2. In the case of the 216, 235 or 261 engine, remove the road draft tube which is just press fit and the bracket holding it in place then install a 1-1/4" Cup Style Freeze Plug (such as the Dorman 555-024) with a 3/4" hole in the center big enough to accommodate the PCV Valve. Find 604535 13604 Chevy 82498 for sale from eBay. Questions come up periodically concerning crankcase ventilation issues. This will help reduce oil leaks. From sheet metal and exterior to the final interior touches. Could that be what is causing me to have to much pressure in my crankcase?. Choose top quality brands Gates, Mr Gasket, Stant, Trans Dapt. Without a pcv you run the risk of blowing out seals or actually having an explosion in the crankcase. 8 but any enginering thoughts might help me ease my mind on if its good or bad to keep this thing on. 2L; Crankcase Breather Filters. I did a bunch of internet research and found no viable solution for the smog valve connection, so I came up with my own. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. I had them powder coated in satin black and then sanded down the high spots to give me the look I wanted in my engine compartment (see photo). Overall height is 2. Under no circumstances should any type of breather union be connected to a manifold port dedicated to a single cylinder. 97 SBC 15 Full Finned Breather Unit Pair - One Plain and One with PCV Valve VPABREATHER rat: $39. 22” hole, and a step the width of the groove in the grommet. I have a 86' k10 blazer with a 350 small block and my problem is smoke coming out of the crankcase vent/ PCV vale breather. Available for 1" or 1-1/4" diameter valve cover holes. This is a direct replacement for the factory oil fill cap that vents unwanted crankcase pressure to the atmosphere and improving overall performance. After removing the grommet or breather, a hole machined for a PCV or breather can be used for oil. CFM Performance LS1 LS2 LS3 LS6 LS7 Billet Valve Cover Breather (Free Shipping). The information in this document applies to these PML small block Chevy standard perimeter mount valve covers:. My solution for optimizing crankcase breathing on a performance 305 I built once with some aftermarket valve covers that had only the breather hole and oil cap was this - I picked up a breather for a Jeep that resembled a vented canister with an in/out, and inserted that in the valve cover. Its purpose is to sit between the PCV breather vent hose and the air box. A pair of breathers won't cut it. Polished Aluminum Valve Cover Smooth Breather Pcv Valve Set Sbc Ford Bbc. Thanks Jerry. A breather atop each valve cover is usually all that's needed. Sign in to check out Check out as guest. Shop with confidence. Exhaust system venting: Crankcase gases are routed into the vehicle exhaust, upstream of the exhaust aftertreatment system. Using the breather tube and closed breather will keep oil off the valve covers. This is a direct replacement for the factory oil fill cap that vents unwanted crankcase pressure to the atmosphere and improving overall performance. - Chevrolet 2006 Cobalt question. Having the PCV valve at the draft tube clearly would not. net) : I wanted the appearance of a 283/327 Corvette engine on a 350 Chevy. , Inglewood, CA 90302, 310671- -4345, Fax 310-671-0858, www. I have a chevy 350 (1979) that blows oil out the breather tube. 38 shipping. The primary cause of the problem on SBC is the fact it is nigh on impossible to locate a breather on the valve cover so you won't have at least one pushrod pumping oil directly at the bottom of the breather. Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy project. Dd15 Crankcase Breather Filter Replace. Find Valve Cover Breathers and get Free Shipping on Orders Over $99 at Summit Racing!. Most of today's petrol engines continue to use PCV systems. Here's just a little video of how to help keep oil out of valve cover breathers. These work well with most chrome steel or aluminum valve covers. So I need some serious help here. Open Crankcase Ventilation (OCV): Crankcase gases (filtered or not) are vented to the atmosphere. 220 inch valve cover hole. The positive crankcase ventilation (PCV) system, and older "road tube" systems that preceded PCV, are for venting combustion products from the crankcase in the most unobtrusive manner consistent with the times. Edelbrock is the most respected name in performance! Since 1938, Edelbrock has manufactured its core products in the USA for quality and performance. 283/327 Corvette Valve Covers on Newer SBC by Mark Brazelton ( [email protected] Not as good as a PCV system, but adequate. I think you are mixing terminology. port to attach a hose. Consult your owner's manual to see where the PCV valve is located on your vehicle and what the recommended service intervals are. If not then you will have to add a port to the intake and get the vacuum needed for the pcv to work properly. We're here to help you find that perfect Crankcase Breather for your Chevy Corvette. I planned on buying new valve covers and running one pcv on driver side and a breather on passenger side. For the best experience on our site, be sure to turn on Javascript in your browser. 7 Liter Cummins Diesel Crankcase breather element(CCV) JavaScript seems to be disabled in your browser. Could that be what is causing me to have to much pressure in my crankcase?. Breathers, PCV Valves & Oil Caps Oil Filler/ Breather Tube (For Chevy V8) OTB Flathead Rear. FREE Shipping. Uncontrolled fueling of the engine is extremely dangerous. How do you go about choosing the correct one? I went to the local parts store and got one that was for a 350(so I was told) I get everything hooked up and now it runs like it has a bad vacuum leak. You are eligible for a full refund if no ShippingPass-eligible orders have been placed. There are only a few components involved in the PCV system. Sign in to check out Check out as guest. My one car I have been testing this is under 5" Hg from idle to WOT in the PCV system. 2 Billet One-Way Valve Cover Crankcase Breather Kit UPR Wrangler 3. These grommets feature an internal baffle to prevent oil seepage. Add to cart - Add to Watchlist Unwatch. In this case, the Customer Care team will remove your account from auto-renewal to ensure you are not charged for an additional year and you can continue to use the subscription until the end of your subscription term. Find Crankcase Breathers and get Free Shipping on Orders Over $99 at Summit Racing! Crankcase Breather Element, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each. I am fairly certain that it is coming from the breather on the drivers side, because that breather is just open and the other one has a pcv valve but no hose, and when it sits at idle I can see smoke coming from the drivers side port. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. i have yet to have any oil come from one. Vintages valve covers and breather caps bring back the days of the yesteryears, while offering the precision fitment of todays modern leak proof technology. The M/E Wagner Dual Flow PCV Valve far outperformed any other valve tested, since it was properly tuned to the specific vehicle. Engine Breather Systems. The "breather" is actually just the tube that connects to the pcv valve. A crankcase is the housing for the crankshaft in a reciprocating internal combustion engine. 6L Duramax Diesel Crankcase Breather Set by PPE, part number 1140200. I have done a compression check and found that cylinders 2-8 are between 115 and 121 psi. Please check fitment for your car before buying. I have a chevy 350 (1979) that blows oil out the breather tube. He said I should get rid of the stock crankcase breather and put on an aftermarket breather that collects the blowby oil in a can. Sbc 12 Full Ovalshort Finned Engine Dress Up Kitw Breathers Pcv Hot Rod V8. 0 out of 5 stars 1. Edelbrock is the most respected name in performance! Since 1938, Edelbrock has manufactured its core products in the USA for quality and performance. Camaro Central is a service friendly restoration parts distributor specializing in 1967 thru 2016 Chevy Camaro products. So I have a 350 that had breathers in the valve covers, I want to install a PCV valve. 5-2010 Chevy 6. Positive Crankcase Ventilation as published in BritishV8 Magazine, Volume XVII Issue 1, July 2009 by: Jim Blackwood. If you just use a breather and your engine has any blowby passed the rings, it will push oily fumes all over your valve covers and engine. I'm thoroughly convinced it's bc this piece of shit is running TWO PCV VALVES, one on each cover, and no breather. CHROME VALVE COVER BREATHER PUSH-IN W/ TUBE PCV SBC BBC SBF 327 350 454 Grommet. Valve Cover Grommets Breatherpcv 1. These aluminum valve cover breathers are so nice they could be jewelry for you engine. Here's just a little video of how to help keep oil out of valve cover breathers. This has probably been discussed numerous times but I haven't been able to find an answer for my specific question. , Inglewood, CA 90302, 310671- -4345, Fax 310-671-0858, www. For Bmw 99-05 Pcv Breather Hose Kit 5 Pcs E39 E46 E53 E60 Crankcase. Mopar Dodge Plymouth 426 Hemi Air Cleaner Air Breather 2x4 Chrome Dome Afb Carb. Breathers without a pipe breath to atmosphere. Available for 1" or 1-1/4" diameter valve cover holes. Crankcase Breather Repair Set Vaico Fits Audi Vw Seat Skoda A1 A3 A4 A6 04-17. I have done a compression check and found that cylinders 2-8 are between 115 and 121 psi. Check prices & reviews on aftermarket & stock parts for your 1986 K5 Blazer Crankcase Breather. I'm running the Ford Racing tall valve covers with baffles, and this is an issue I still have. The PPE 114025000 Crankcase Breather Filter Kit for your 04. While this article will use a Nissan SR20 engine as a reference, the information found here can be applied to all motors. Selecting a dress-up valve or a stock valve not specifically intended for the vehicle yielded mixed results. 1/7/2018, sbc_holes. Our site displays a very comprehensive array of Clk320 Crankcase Breather and relevant listings. Connecting your new breather to the air cleaner just means your engine is ingesting blowby gases, polluting the air/fuel mixture. MCC208 Valve Cover Breather Has A Stem Size Of 1 Inch. Choose our Aircraft breather and incorporate a much needed PCV system into your engines operation. Positive Crankcase Ventilation as published in BritishV8 Magazine, Volume XVII Issue 1, July 2009 by: Jim Blackwood. Diesel Ops is committed to providing our customers an unparalleled shopping experience. for small block Chevy, OE# 3728502 fits 1955- 1967 all Chevy's with 265 , 283, 302 327 350 " engines,. Choose top quality brands Gates, Mr Gasket, Stant, Trans Dapt. 2017-2018 Silverado / Sierra 1500 5. Is that sufficient enough, or do I also need a breather in one of the valve covers?. -Additional shipping cost will apply for oustside of the 48 contiguous states, for shipping charge please email me. excessive crankcase pressure is comp leaking by the rings usualy due to running rich and washing down cyclinders. Add To Cart Details. The "breather" is actually just the tube that connects to the pcv valve. Also, another mystery solved. Well its been a few weeks with the breather attached to my pcv hose. The PCV system is intended to relieve the crankcase of any positive pressure by allowing it to vent through the free flow of air, either into or. Discover Chevy Valve Cover Breathers on sale right here with the biggest choice of Chevy Valve Cover Breathers anywhere online. Crankcase Depression Regulator Valve or CDR Valve for all 6. Oil Fill, Breather, and PCV Information For PML Small Block Chevrolet Valve Covers 1 of 6 PML, Inc. 6L Duramax decreases the chance engine runaway that can be caused by oil vapor that travels through the crankcase breathers and into the intake system. The two types of OCV system—without and with filtration—and the closed crankcase ventilation design are shown in Figure 6. i have fixed countless cars by leaning them out. What causes oil to blow out of the crankcase breather tube on a Harley 1340 cc motor when started after it has set - Answered by a verified Motorcycle Mechanic. We have no emissions here in the the uk so are they needed at all?. S Standard S Reed - Diameter Breather Valve Crankcase And Cycle. The Chevy designed system of having fresh, filtered air from the air cleaner, enter the valve cover at the front and rear exit through the PCV valve to the intake manifold works quite well. Your #1 Source for Streetrod, Truck and Muscle Car Parts! we are offering a complete kit with big block Chevy gaskets, a breather/pcv combo, and a pair of grommets. Positive Crankcase Ventilation as published in BritishV8 Magazine, Volume XVII Issue 1, July 2009 by: Jim Blackwood. 99 Engine 6pcs Kit Crankcase Breather Hose For Jetta MK4 Audi A4 TT 1. The PCV system is intended to relieve the crankcase of any positive pressure by allowing it to vent through the free flow of air, either into or. 6 Free up Horsepower - Eliminate Crankcase Pressure Brand new UPR Billet One-Way Crankcase Breather Kit. If you know your Year Make Model, put it in the selector so that we can guide you to a product that fits your vehicle. Compare 1986 Chevrolet K5 Blazer Crankcase Breather brands. New listing SBC 12 Full Oval Tall Center Bolt Finned Engine Dress Up Kit PCV Breathers 350. Your automotive desires. I run a pcv valve on one side, and a breather on the other (with baffles in the valve covers). Before we show you the how to, lets first understand the function of the PCV system. After removing the grommet or breather, a hole machined for a PCV or breather can be used for oil. Venting a typical V-8 engine isn’t a complex affair. CHROME VALVE COVER BREATHER PUSH-IN W/ TUBE PCV SBC BBC SBF 327 350 454 Grommet. Check out the new VMS Racing billet aluminum PCV Crankcase Breather Reroute Fittings for the 2004. Focusing on tons of 604535 13604 chevy 82498 for sale online. Stop in the shop, call us o. Having a hard time finding Sbc Valve Cover Breathers online? Valve Cover Breather Pcv Chevy Ford Mopar Sbc Bbc 350 2015 CSI Automotive Sales, Service & Parts. These work well with most chrome steel or aluminum valve covers. Choose top quality brands Gates, Mr Gasket, Stant, Trans Dapt. In order for the PCV system to sweep fumes out of the crankcase, the crankcase must have a source of fresh air. My solution for optimizing crankcase breathing on a performance 305 I built once with some aftermarket valve covers that had only the breather hole and oil cap was this - I picked up a breather for a Jeep that resembled a vented canister with an in/out, and inserted that in the valve cover. In this case, the Customer Care team will remove your account from auto-renewal to ensure you are not charged for an additional year and you can continue to use the subscription until the end of your subscription term. If not then you will have to add a port to the intake and get the vacuum needed for the pcv to work properly. Crankcase breather ventilation Canister , used, mounts inside at back of block. 201 West Beach Ave. i have fixed countless cars by leaning them out. Buy here! Engine Parts. I do smell the gases but havent noticed any loss of power or mpg. I had them powder coated in satin black and then sanded down the high spots to give me the look I wanted in my engine compartment (see photo). Chrome Breather And Pcv Valve Set For Ford Chevy Mopar Pontiac Oldsmobile. But the Chevrolet Silverado 1500 PCV crankcase breather hose still provides a greater benefit to the environment than it does harm your intake. When it comes to your Chevrolet Corvette, you want parts and products from only trusted brands. excessive crankcase pressure is comp leaking by the rings usualy due to running rich and washing down cyclinders. The best part is, our Chevrolet Corvette Crankcase Breather products start from as little as $3. i have fixed countless cars by leaning them out. Crankcase breather ventilation Canister , used, mounts inside at back of block. I still have a vacuum line to PCV valve in the other valve cover. Order by 4 P. And if you put multiple breathers on the engine, then the pcv may not work well at low speed. You should use a PCV valve and plumb it into your intake. net) : I wanted the appearance of a 283/327 Corvette engine on a 350 Chevy. Find 604535 13604 Chevy 82498 for sale from eBay. He said when he pulls the intake manifolds on 6. I planned on buying new valve covers and running one pcv on driver side and a breather on passenger side. The breather housing has an internal PCV with a 90 deg. CVF Racing valve cover breathers are made from 6061 Billet Aluminum (Not die-cast) for a clean, professional look. Make sure you have the PCV valve facing the correct direction. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Valve covers should be run with one breather and one PCV valve or PCV breather for proper air circulation. new billet specialties script satin black powder-coated aluminum tall valve cover set for chevrolet,fits small block chevy with metal baffles, rubber grommets, 1 1/4" hole for breather/pcv 5. Chrome Sifton Engine Breather Oil Collector,for Harley Davidson,by V-twin $78. I'm no mechanic so wondering if this is going to fix my issue. 99 Engine 6pcs Kit Crankcase Breather Hose For Jetta MK4 Audi A4 TT 1. The source of this fresh air is the "crankcase breather", which is usually usually ducted from the engine's intake manifold. Can I replace the PCV valve with a breather cap and plug the carb base plate opening without damaging the engine. Check out the deal on PPE Crankcase Breather Filter Kit 04. 1973 - 1979 F-100 & Larger F-Series Trucks - Valve cover breather VS. Breathers with a pipe for a hose, have a PCV valve installed. Sign in to check out Check out as guest. Recommended crankcase pressure amounts vary depending on the type of vehicle and engine. Sold seperately. 5-2010 Duramax Diesel engines. Order your parts online or pick them up in-store at your local Advance Auto Parts. In the case of the 216, 235 or 261 engine, remove the road draft tube which is just press fit and the bracket holding it in place then install a 1-1/4" Cup Style Freeze Plug (such as the Dorman 555-024) with a 3/4" hole in the center big enough to accommodate the PCV Valve. If not then you will have to add a port to the intake and get the vacuum needed for the pcv to work properly. If you are breathing your crank case to atmosphere or running a vacuum pump we have what you need. Breathers, PCV Valves & Oil Caps Oil Filler/ Breather Tube (For Chevy V8) OTB Flathead Rear. The PCV system is intended to relieve the crankcase of any positive pressure by allowing it to vent through the free flow of air, either into or. The PPE 114025000 Crankcase Breather Filter Kit for your 04. Order by 4 P. , Inglewood, CA 90302, 310671- -4345, Fax 310-671-0858, www. As the RPM's rise the smoke increases, until its pooring out and out the exhaust. Find Crankcase Breathers and get Free Shipping on Orders Over $99 at Summit Racing! Crankcase Breather Element, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each. Breathers remove the source of positive ventilation that repressurizes the POSTIVE CRANKCASE VENTILATION (PCV) valve. Small Block Chevy Short 2-58" Baffled Chrome Valve Covers 350 Logo Breather PCV. Cover Washable Breather Valve 350 Chevy Ford Mopar TALL BBC Hole 454 In Push SBC SBC 454 Push In Cover TALL Ford BBC Chevy Mopar Washable Hole Valve Breather 350. So I need some serious help here. Pcv Breather System Volvo 850 94-97, 850 97, C70 98, S70 98, V70 98, V70 98. You need valve covers with a PCV hole in each other for this though (factory covers for those engines was solid, no holes) Knock a freeze plug into the road draft tube's hole in block. The best part is, our Chevrolet Corvette Crankcase Breather products start from as little as $3. CFM Performance LS1 LS6 LS2 LS3 LS7 Billet Valve Cover Breather. Restrictions. Check prices & reviews on aftermarket & stock parts for your 1986 K5 Blazer Crankcase Breather. Order Crankcase Breathers for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. EST and your order ships same day. What causes oil to blow out of the crankcase breather tube on a Harley 1340 cc motor when started after it has set - Answered by a verified Motorcycle Mechanic. The M/E Wagner Dual Flow PCV Valve far outperformed any other valve tested, since it was properly tuned to the specific vehicle. Restrictions. This ensures that the crankcase is always exposed to constant, tangible, negative pressure at the PCV breather elbow under all conditions. If you just use a breather and your engine has any blowby passed the rings, it will push oily fumes all over your valve covers and engine. Typical configuration and components. FREE Shipping. An inlet hose connects to a filtered air source. 38 shipping. 1A Auto has a large selection of aftermarket PCV Valves and Breather Hoses for your Chevy K1500 Truck and ground shipping is always free!. Order your parts online or pick them up in-store at your local Advance Auto Parts. A breather is located in one valve cover through a rubber grommet. Push In Chrome Oil Filler Tube Extension Breather 1. I'm running the Ford Racing tall valve covers with baffles, and this is an issue I still have. ” Its purpose was to remove crankcase vapors and gases from the engine. Valve Cover Breather Washable TALL Push In Hole SBC BBC 350 Chevy 454 Ford Mopar Valve Cover Breather: $13. The best part is, our Chevrolet Corvette Crankcase Breather products start from as little as $3. Of course, replacing one with a PCV valve to introduce a bit of vacuum into. Crankcase Breather Reed Valve - Standard Diameter S And S Cycle. pdf Free Download Here the engine air intake engine crankcase breather crankvent crankcase emission control assembly. Uncontrolled fueling of the engine is extremely dangerous. This will help reduce oil leaks. Ford GM Billet One-Way Valve Cover Crankcase Breather Kit UPR - Free up Horsepower - Eliminate Crankcase Pressure Brand new UPR Billet One-Way Crankcase Breather Kit. Focusing on tons of 604535 13604 chevy 82498 for sale online. 2 Billet One-Way Valve Cover Crankcase Breather Kit UPR Wrangler 3. Camaro Central is a service friendly restoration parts distributor specializing in 1967 thru 2016 Chevy Camaro products. YEs, you do need breathers, or PCV system. Inside an engine internal pressure is produced within. Diesel Ops is committed to providing our customers an unparalleled shopping experience. When it comes to your Chevrolet Corvette, you want parts and products from only trusted brands. see catalog for each one. So I need some serious help here. This product is specific to particular car models. 1/7/2018, sbc_holes. Using the breather tube and closed breather will keep oil off the valve covers. The "breather" is actually just the tube that connects to the pcv valve. Though, after I would ride just for a little bit enough to get the engine hot there is a steady stream of white smoke coming from the crankcase breather tube. Questions come up periodically concerning crankcase ventilation issues. MCC208 Does Not Come With The Valve Cover Grommet It Uses MCC207 Grommet. Many years ago, they simply vented the pressure into the atmosphere with a road-draft tube and breather cap. K&N breather filters and crankcase vent filters are designed for the high demands of racing. It will help reduce crankcase pressure better than breathers alone, which will help to prevent oil leaks. Here's how Chevy dealt with the problem on the 63 340hp engines and may have relevence to other years, as well. I have a 86' k10 blazer with a 350 small block and my problem is smoke coming out of the crankcase vent/ PCV vale breather. This will ventalate the cranckcase well enough. Featured Video Dorman Innovation Process. Push In Chrome Oil Filler Tube Extension Breather 1. So I need some serious help here. , Crankcase [incl. Most of today's petrol engines continue to use PCV systems. The positive crankcase ventilation (PCV) system, and older "road tube" systems that preceded PCV, are for venting combustion products from the crankcase in the most unobtrusive manner consistent with the times. Thanks for your help. The two types of OCV system—without and with filtration—and the closed crankcase ventilation design are shown in Figure 6. I think I'd put a pcv on, use some big breathers on the valve covers, and take chance that the pcv will still help when cruising. Having the PCV valve at the top of a ventless valve cover would effectively remove those contaminating fumes. Answer: The positive crankcase ventilation system, referred to as the PCV system, was one of the first pollution control devices to be used on engines. I run the breather tube to the passenger side and the PCV on the driver's side only because fitting the breather hose on the same side as the throttle linkage is not only difficult but could be dangerous if the tube short a little and blocks the throttle open. In order for the PCV system to sweep fumes out of the crankcase, the crankcase must have a source of fresh air. If you know your Year Make Model, put it in the selector so that we can guide you to a product that fits your vehicle. Vintages valve covers and breather caps bring back the days of the yesteryears, while offering the precision fitment of todays modern leak proof technology. The Chevy designed system of having fresh, filtered air from the air cleaner, enter the valve cover at the front and rear exit through the PCV valve to the intake manifold works quite well. Selecting a dress-up valve or a stock valve not specifically intended for the vehicle yielded mixed results. I have a 86' k10 blazer with a 350 small block and my problem is smoke coming out of the crankcase vent/ PCV vale breather. I have oil leaking somewhere under my truck, best i can see is that it's coming from the crankcase breather, seems to leak more when the truck runs longer, and hotter, first thought was injectors, but the oil doesnt smell like fuel. Buy right now! Replacement Car Parts For Sale.