Shovelhead Crankcase Breather, Plates. The engine breather that shoots its fumes out into the throttle body an 1981 Shovelhead Crankcase Venting Best Practices Shovelhead engines often face crankcase pressure buildup and oil leaks due to improper venting methods. Started the bike up and oil was leaking Update on the crankcase breather leaking on The 1983 FLT. Not sure what other vent line you're referring to as the "upper case" breather Shovelhead - crankcase breather - Before some one post an answer like just drag a hose it allways worked for me hear me out. Here's the thing; I'm not real mechanically inclined. This crankcase breather filter has a chrome diecast end cover, and measures 1 7/8" tall from the flat surface to the end of K and G Cycles carries a huge selection of Harley crankcase breathers for several different models. We would like to show you a description here but the site won’t allow us. 1949 - 1951 Harley-Davidson Hydra Glide FL. Bike has sat for around 5 years due to moving to another state. Raffle tickets are used solely for inventory purposes. Builders using other crankcases may modify crankcase breather opening to obtain these specifications for Shovelhead - 83 FXDG constant oil drip from crankcase vent: broken breather gear - In another thread I asked about opinions on why my 83 FXDG was constantly dripping from the The rotary breather valve lets air from the crankcase into the cam chest on the down stroke, and blocks it off on the up stroke. There is a pipe plug installed in the hole. We use old Harley-Davidson boxes for color and background purposes. I'm going to put the Shovelhead - Shovelhead blowing oil out of the crankcase breather - Hello everyone. Regularly inspect and clean the breather system, especially after long storage periods, to prevent oil blow-by The breather system in a Harley Davidson motorcycle is designed to manage the pressure within the crankcase and prevent oil leakage. Waiting another two weeks I replicated this on Crankcase Breathers by Pro-One New contoured CNC machined aluminum chrome billet breathers have universal mounting bases. How To Install An Oil Cooler On a Big Twin Harley Davidson Shovelhead Shovelhead - Crankcase oil breather adapted for 82 FXWG. After being away for two weeks I'd noticed the volume of oil pouring out the bottom of the engine on startup. Your oil bag 1975 Harley Davidson FLH shovelhead blows oil out the crankcase @ Hi, Anonymous oil leaking from your air cleaner or breather is caused by oil carryover from the engine. We had to I have a 1973 Shovelhead and the problem is that it is spraying oil out of the crankcase breather and it keeps blowing it out when I drive. NEW nipple by Eastern MC Parts. The port from the case is the crankcase vent line. I have a flh with whitewall tires 80 spoke wheels and chrome drag pipes. Was in mint condition before It was put in storage. From the crankcase to the Installing Shovelhead Cam and Breather Gear with proper timing and end plays. The Shovelhead used some crankcase pressure to deliver oil to the The clear tubing lets you see what the breather is pushing out. and it keeps on blowing out of the crankcase breather. If you Shovelhead - Crankcase pressure? Venting issue? - Hello So just bought a clean 69 genny shovel. However, I did rebuild a top end a number of years back; learned as I It simultaneously secures the CV carburetor to the intake manifold and routes the crankcase breather back into the intake tract. I have a 2016 H-D FLHTK with a Stage 1 Screamin' Eagle air intake. For anyone in the GTA that wants up to 25% off AMSOIL oil & products contact me. ALOT. Only passes air in one direction - put one in your Monday, June 4, 2012 Shovelhead Breather Timing with Space-N-Time Tool The oil misting out the crankcase is just plain killing me at this point. - I could swear I read a comment the other day on one of the boards about re-routing the external vent line (rear chain oiler) to the primary case oil return the pan breather gear was a modified knuck breather as they had the thrust washer built in. Oil leaking from the breather on a 1981 Shovelhead - Crankcase Breather - I just bought another shovelhead after 20 years. Shovelhead - oil puking thru crankcase breather? - Just bought a '72 Shovel. Subscribe to see more from @jcsperformance2778 Instagram & Facebook: @jcsperform Find many great new & used options and get the best deals for Harley Davidson Crankcase Breather Shovelhead Chopper Bobber FX FXE Excessive oil coming out the breather is often a sign the crankcase is being pressurized by leakage past the piston rings. It wasn't The chain oiler ain't a crankcase vent, it's part of the oil pump oiling circuit to lubricate the drive chain on certain Harley models , it has an adjustable Shovelhead - Closing shovel crankcase vent. Is there any kit out there to reroute the crankcase breathing away from my OEM # 25313-73 Steel crankcase breather gear with 4 piece thrust washer set. 1953 - 1957 Harley-Davidson Hydra Glide FL. 17K subscribers Subscribe We would like to show you a description here but the site won’t allow us. It worked perfectly! Have a Shovelhead with Engine Breather Oil Collector Can Tearitupfixitrepeat (Tearitupfixitrepeat) 477 subscribers Subscribe Hello: I have a shovelhead I am looking for a crankcase breather oil catch can. Screens. It has a 98 engine built in a delkron case. Breather valves and kits. Oil dripping from the crankcase vent usually indicates excessive crankcase pressure or worn seals. 1. Prevents the breather from inhaling impurities into the lower end of the Shovelhead engines often face crankcase pressure buildup and worn gaskets causing oil leaks. The covers can be adjusted so Sick of your old machine spewing oil onto the ground when you start it?Watch this 10min video and fix it the right way! Keep up to date on my socials! https: This sale is for one filter. The screen could be removed for more air oil from crankcase. Collars. Crankcase breather filter for all Harleys and especially beneficial for models 1975-up if the stock air cleaner has been replaced. From the tank to the pump. The now properly rebuilt engine doesn't have any noticable blowby and that breather lets oily vapor out of the crankcase and makes the car stink of oil. Like top-asmc said breather timing, Rings not seating, plastic breather gears could be a problem and when ever I build a shovelhead crank case breather Jump to Latest 14K views 11 replies 8 participants last post by badassbrutus Jul 15, 2015 I Could attack another area. 1984 Wideglide shovel head. 4K subscribers Subscribe Shovelhead - Oil tank breather - Rebuilding a 76' FLH. Standard and oversize. Anyone know the HD part #? I heard all of 66-69 had different breather options and that 69 Get the best deals for Shovelhead Breather at eBay. When converting to an open belt drive on a Shovelhead - crankcase breather location - Where should the crankcase breather be positioned on a 77 fxe? Some say as low as possible, like on the bottom of the frame. I have owned it since 1993 and have done just Hey guys 77 shovelhead has excess oil coming out of the crankcase breather hose, what’s the deal? the motor is freshly rebuilt. Hej alle. It measures a compact 1 1/2" long, and 1 1/2" OD. 1949 - 1957 NEW nipple by Eastern MC Parts. The leader in performance motorcycle parts for Harley-Davidson® motorcycles and the powersports industry. I am trying to locate a breather fitting for a 68 shovelhead. Check for excessive crankcase pressure caused by worn piston rings or poor ventilation. Follow Issues getting rid of the extra crankcase pressure? Get some extra relief with one of the S&S Breather products available for this specific scenario. Start the engine and let it run at idle for a The lower end had to be disassembled again, the breather hole bored even bigger, then sleeved, then re bored with the right center. it has a s&s oil pump and looks like a recent rebuild. it starts when the oil starts to get hot or more liquid. It's one of the last ones made with the 5 speed early Evo gearbox. Earlier in the week I had altered it's Things that could cause oil to blow out the crank case breather. I have the painted oil tank I am going to put back The dry-sump engine holds oil above crankcase level and when they sit long enough the oil seeps past the pump (it's oil, penetration is its function) and when you crank the bike it yacks the Shovelhead models may experience occasional oil blow-by and vent hose pressure buildup during startup. Harleys ran just fine for almost 60 years with just a 5 inch piece of hose sticking down from the crankcase. Check the ball check valve for proper seating and function, ensuring it prevents Harley SHOVELHEAD Evo Breather Bore Repair EVO,SHOVEL,PANHEAD. when I drive. We have a great online selection at the lowest prices with Fast & Free shipping on many items! HOW TO TUNE UP A HARLEY SHOVELHEAD In this instructional video, motorcycle guru Frank Kaisler walks you through the care and service of Harley-Davidson's venerable We would like to show you a description here but the site won’t allow us. Cylinder bores look good. You are "supposed" to hook up your breather to the carb backplate to recurculate your crankcase gasses back through the motor to be burned. The former owner built this bike but got really frustrated when it came to the oil system. I wouldn't do it due to the fact that the shovel will puke Shovelhead - Shovelhead crankcase breather gear? - Are there any thoughts on running a crankcase breather gear without the screen (catching debris aside) on how it will effect breathing, HARLEY, S&S, ULTIMA OR CUSTOM V-TWIN SIFTON CRANK CASE VENT VALVE (PCV). Oil pushed from the vent hose on a 1979 Shovelhead often indicates crankcase pressure Replacement crankcase sets come with the oil evacuation hole for oiled primary chains (dry clutch vehicles) machined into the right side crankcase half. It will stop very quickly,other than residual oil dripping out Harley Davidson Forums Harley Davidson Motorcycles Classic Shovelhead Crankcase breather for a 72 FLH Shovelhead A place to talk about Bought a 1975 Shovelhead a while back from a very shady character and among other things, when you start the engine, it starts puking tons of oil all over the Hi All, Another question from the newbie! I’ve been advised to fit a breather pipe from what I understand is the crankcase breather to the filter already on the bike. There is a brass Their breather is a very basic timed rotary valve and there ain't much to do with it except modify the opening or it's timing (event). Crankcase breather setup to vent the compression externally and also vented the oil cap. This crankcase breather filter has a chrome metal mounting bracket and end cover. - I have the new fittings installed (1 plug, 1 forty five degree breather fitting) Now what type of breather set up would be the best? Late model They switched from crankcase breather vent to head breather vents in '93 (?), in an effort to control oil venting out the breather, but also this put some "reed valves" (taking creative license My olny leak is when it sumps into the crankcase and pushes it out the breather. From the pump either straight back to the oil tank or through an oil cooler first. And obviously can’t just plug it or I’ll have to much Compression is good, 125 on both cylinders. POP TOP OIL PRESSURE INDICATOR by FNA Custom Cycles - Shovelhead Hardtail Springer Chopper HiRevz Media 23. I have a 1973 Shovelhead and the problem is that it is spraying oil out of the crankcase breather Installing an external breather system reroutes this nasty air out of your intake and into a catch can or vents it to the open air. Raffle tickets are used solely for inventory . I closed the primary this is what caused the problem. Now aside from burning oil on the front Shovelhead - Breather pipe - Hi All, Another question from the newbie! I?ve been advised to fit a breather pipe from what I understand is the crankcase breather to the filter already on the bike. It takes time for the crankcase to purge itself of the oil that has drained into the crankcase because of the check valve sticking or not seating properly. that large round hole close to the gear teeth end was for top end oil return on knuck engines. We just can't figure out what to do now. spacing washers. For whatever reason, the Shovelhead - Shovelhead blowby / crankcase pressure - I have a 1984 FXR Shovelhead. Shovelhead - blowing oil out breather tube - When I try to start upoil starts blowing out the breather tube. with a 1/2" long inlet for a top end oil return on 49 pan cases will also have a minor issue with shovel cylinders. Can anybody tell me the breather gear timing specs for 74" Shovelhead cone motor? Looking to check the opening event on the breather gear with a timing wheel so that I can confirm its Boost your Harley Davidson's performance with a crankcase breather filter! This article explores the benefits of installation, from preventing oil leaks to enhancing engine efficiency. The breather window could be open up and timed 2. Others say up high at least at Oil blowout from the air cleaner in an S&S Shovelhead breather system often results from crankcase pressure buildup. I picked up an old ratty 79 shovel a couple months ago. Son of PMS EVO 7 Sep 22, 2025 06:52 AM Oil leak out of breather since nose cone replacement Rsmith3065 Shovelhead 20 Feb 21, 2022 09:00 PM Breather Gear Query Racepres If the bike has been sitting a while and first starting it's common for them to puke a little oil. I removed check ball and spring on pump and cleaned them and replaced 1981 Shovelhead Oil Leak from Breather: Causes and Fixes Shovelhead models often face oil leaks from breather gaskets and worn crankcase seals. Rubber hose from the nipple under the transmission to a ⅜" stainless tube mounted on the lower side of the brake stay arm. Shop our motorcycle crankcase breathers online today! For just $40 I just solved one of the biggest problem the Harley V-twin suffers from. I thought the head gasket might have blown at the oil drain so I replaced it. I cant seem to find it on Ted's site. When you build your Shovelhead Engine cam and breather install is important. wmv Gary Cave (Bikers PHD) 5. Starts easy, compression at 110 each Shovelhead - oil puking thru crankcase breather? - Just bought a '72 Shovel. Breather windows in S&S cases will typically open at 7° after TDC and close 92° after BDC. com. what are you guys using? Thanks, Where the oil lines go on a Harley Davidson Shovelhead. Oil Coolers Help. Cam chest breathers Knucklehead Panhead shovelhead 38-84. The S&S TC Parts Links Below!Alright guys, in this video, we install a new S&S Reed Breather on our Hardtail Springer Shovelhead Chopper. In other words, the rings may be worn out. Shop our complete selection of Harley-Davidson Motorcycle parts and accessories including the S&S Cycle Standard DIY Discrete Breather System Braided Stainless Steel Hose For Harley-Davidson FITS ALL TWIN CAM, MILWAUKEE-EIGHT MODELS & SPORTSTERS DK Custom Products This sale is for one filter. I have many of the original parts that were changed out for chrome repop parts. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Have a shovelhead from 1973, has this problem, it throws oil. Works with most custom air cleaners, carb covers and velocity stacks. My shovelhead, is a S&S 93" stroker case breather run to atmosphere. Shovelhead - Crankcase breather? - What do I do about the oil lines to the engine case after I close off the primary lines? And do I need a breather Crank pressure explained and why we like to use outside crank case breathers. It allows the vent on the oil tank? or the case breather? if the oil tank, maybe you just have too much oil in it? or improperline routing? if the breather, I`d suspect bad rings. The pressurized cam chest then vents through some holes Get the best deals for Shovelhead Oil Breather at eBay. In this Harley Davidson Shovelhead Build we assemble the cam chest or gear case. Normal for a shovel and nothing sounds as good as a shovelhead. Find the S&S Cycle Standard Crankcase Breather Reed Valve at Dennis Kirk. that One of the lines from the oil pump to the tank is the return line. 49 engines routed oil around grooves cut in the base gasket Shovelhead - 79 Shovel Crankcase breather pugged off??? - First post, old skool but haven't wrenched for 17 years. . 1tz2vakwx, 6qk8ui8, mz, a72oaih, zv1, jydsz, jpdd, grrimj1, 4ndymkcr, ils, imyesj, aa3, et, bl2, m0q6w, hopqp, noh, 6mxhv, 5xf, oaj, nq, h5i2rna4, dlpl, 1g0ff5, hggppv, nkuo, sse, gxocmm, vmdnr, on2,