Shovelhead crankcase breather catch can Vehicle Specific. Any oil that pools in the hose, goes back in the top end when it's not running. Anybody running a catch can or external breather? Please post a pic of your setup. To See the XL Catch Can click the Color You want to see XL Black or XL Machine Finish. 1. Some guys run a filter thing but it tends to collect oil and drip in larger amounts rather than letting the oil mist out or smaller drips. 99. However, I cant seem to find the right type of hose. Oct 13, 2009 · 1. That will cause the hardened check ball to imprint it's self in the soft alloy Mar 17, 2015 · Bikes got 48,xxx miles on it and I average 5000 a year. Mar 12, 2015 · Universal Baffled Oil Catch Can with Breather Filter and Drain Valve 2 Ports (oulet + inlet),150ml Billet Aluminum Oil Separator Catch Can Oil Reservoir Tank,4 Adapters/Screws/Washers Included,Black WENJTP Oil Catch Can Kit with 4 Adapters + Breather Filter Drain Valve Plug 2 Ports (1 oulet + 1 inlet) 150ml Universal Aluminum Baffled Oil Feb 24, 2025 · The top of the Catch Can is vented, letting the air escape, while the 4 Stage Filtration catches and holds the oil. You could install a simple baffle plate next to the atmosphere fitting to keep crank vent mist from carrying over to it. Point is, there shouldnt be a need to have a catch can. D. Its easy to fine one that will fit over the breather bolts, but, if too flexible they wont hold, too stiff and wont stay on and hard to bend for routing. S&S Cycle Crankcase Reed Breather Valve For Feb 24, 2016 · Didn't use a catch can. 49*Stage 1*Rinehart Exhaust*Ness Big Sucker*External Breathers*FL Air Cleaner*Leatherpros FXDXT Bags*Moons MC Moonmaker*Saddlemen Step Up Seat*Windvest*Mobil 1 V Twin 20w50*Amsoil V Twin Primary Fluid*Amsoil V Twin Transmission Fluid. I'll post a picture of the setup soon. your OEM gear for significantly improving this, or buy a S&S which already has it done. Then use a pin on top of the check ball and give it a few sharp taps . (Longer window duration) Jun 17, 2019 · I'm guessing you could get a catch can, breather bolts on line and the rest at your local auto parts store for much less. The rise up in the hose allows the engine to breath but not puke oil. Oct 29, 2009 · Crankcase fumes contain a small percentage of unburned fuel, or Hydrocarbons. If you're talking about the the hose that vents the motor. No recirculation, but no oil on the ground. Apr 13, 2023 · I have a mental idea for DIY catch can. It's hard on seals too. Take the slotted screws out of the oil pump make sure eveything is clean and shit free. Fits All Twin Cam & Milwaukee-Eight Models - 2000-Up Touring & Softail, 1999-Up Dyna Shovelhead Style (3) Twin Crankcase Breather Kit 4 Stage Catch Can for External Breather System - DK-4ST-CC-BLK DK Custom Products. Mar 29, 2008 · Pretty common of case beather engines,most likley some junk in the check ball under the spring on the oil pump. I run mine to a vented catch can. Members save 5%. Just make sure you know what size breather bolts you need. above the pistons it does so below them too. Greg 1980 Shovelhead Chopper; Kuryakyn Bluegrass Breather Catch Tank $ 82. Apr 6, 2025 · This Catch Can is a nice option that will work with your Discrete or Premium Discrete Breather System. The Catch Can is 1 1/2" in diameter and 2 5/8" tall. The rotary breather gears have a timed port at the back of the gear for the oil trap scavengingyou can mod. E-Z Install. The hose where oil comes out if it's dumped. So it will be ready for new gaskets and the whole 9 yards. V-FACTOR; Eliminates contaminants from entering the crankcase breather hose; Helps to trap any oil mist that normally comes out of the breather hose; Includes mounting tab with 1/4 I. Jun 17, 2019 · DK Custom External Breather System w/ Catch Can Harley Twin Cam FXDC SEPST*HP 81. Mar 4, 2021 · My stroker shovelhead I installed a catch can vent setup. Very simple mod to do. Jul 14, 2015 · If the engine displaces 74 C. 26*TQ 88. I. Dyno runs have shown slight, but noticable increases with NOT recirculating crankcase fumes through the engine, via the aircleaner. Aug 29, 2016 · Vent the can to atmosphere so the crankcase vent in the can won't be restricted, and run the primary return line to the bottom of the catch can. Now if you don't do the upward direction with the hose, a catch can will can the oil that normally goes into the intake. hole; Gauze type filter element is easily cleaned Sep 21, 2020 · Needless to say, my bike likes to barf small amounts of oil out of the crankcase, into the air cleaner then dribble out onto the case or exhaust. The rings are only designed to seal from the top and if crankcase pressure build the rings lose their ability to seal and things go downhill. Aug 3, 2021 · The Moroso air-oil separator/catch can system plumbs inline of the breather system and filters the excess crankcase vapors, exhaust vapors, residual oil and moisture before it re-enters the engine, reducing detonation, knock and helps rid deposits in the intake tract including valves and pistons. Or the hose seems perfect but its not heat resistant, or its not oil resistant. what are you guys using? The case breather just goes to atmosphere. Crankcase Breather Filter Kit Bt Spt All Mdls Cus App Tab Mt Cp W/3/8"Inlet,Zip Tie & Clamp. This is where the oil is coming from. Jul 3, 2016 · I have a shovelhead I am looking for a crankcase breather oil catch can. At least that is the theory. Can someone tell me what is going on inside the engine to cause this pressure buildup and release down this oil line and thanks by the way. Venting it to the atmosphere, or a catch can, is just as good. Jan 7, 2016 · Looks like a crank case breather line, on the right side of the engine. Also Available in XL 33% Larger Size Catch Can. They was meant to be used on a head breather motor (93-up) 2. But I just can't come to spend the $ when oil is so cheap and it keeps my pants lubricated so the denim never gets dry and wore out Think I'll look into one of those breather catch cans for this fall. For more details on the 4 Stage Catch Cans, Click HERE. Also available in Machine Cut Aluminum Finish that can be polished to a mirror finish, see at this LINK. qhm xibu wtjrd fafe icvnh asbxs xnmjgw rbgh vjyj mcn dnohz fhwzm jvqz szcl swlrpl