Bmw airhead valve job. Dec 16, 2015 · On any pre-1985 airhead, you will want to make sure that the exhaust valve seats are the latest version of the BMW part. Nov 20, 2011 · Valve seat recession should not be a deal breaker. All small-valve heads had 32 mm carbs and all large-valve heads had 40mm carbs. These parts can all be moved about a fair amount if the rocker hold-down nuts (head nuts) are loosened. I cleaned both surfaces and put a new gasket on, snugged both 10mm nuts and the 13mm center nut (new studs). You shouldn't worry about the valves if it's running good at idle and you can hear the clack of the rocker arms on both jugs. This tutorial is using the former 1985 R80 RT that William converted to a 1985 R80 S variant in our last video series. The This new series will be focusing on the maintenance and repair of Airheads. This one needs a bit more TLC than most sites say: Cylinder head to cylinder Nuts of tie bolts, M10 tighten in diagonally opposite sequence Oil screw threads lightly Initial torque, 20 Nm (15 ft-lbs) HD Video Tutorials along with High quality replacement parts to keep your classic BMW Airhead on the road. On my R69S, the mechanic (Dave Clark in Missouri, Forever Endeavor Cycles) sent them off to someone he trusted. One of the great things about Airheads is the ability to really mix and match and customize your ride just for you. I adjusted the valves. The intake valve loks fine but the exhaust valve is on it's way to China!: Heres whats left of the seat: Heres the valve: Luckily, I pulled the bike into the Airhead tent at the National Rally because I thought it needed a tune-up and one of the guys looked into the head using a flashlight and noticed the recessed valve. From a complete tear down to some custom hand guards, we've got you covered. If any grit gets in under the The BMW 247 engine, often known as the “airhead” boxer, is an air-cooled, flat-twin motorcycle engine with two valves per cylinder. Any recommendations on shops that you have used recently? Several shops from previous threads have closed or no longer do head work. I just finished doing a job on a guy's 1976 R100S, and would appreciate some Oct 29, 2010 · Compression leak-down test; possible valve job, including valve guides, top end decoking, possibly piston rings, etc. Dec 6, 2013 · Both exhaust valve stems measure 7. Although the reason wasn't specified it was almost certainly due to concerns about clearances closing up faster due to unleaded fuel. Classifieds Buy, sell, trade, and track down motorcycles, parts, gear, and other Airhead-related goodies! This 3 piece set includes: 1 x . You can't beat the price either. Thanks in advance. I want to know how much clickety-clackety is "normal" for my bike. Next I pulled the spark plug & held it against the engine block while turning it over to check for spark. 055mm is acceptable. Does it idle well? Valve problems will show up first at idle; if it responds well to tuning and idles strong and smooth at the right speed, you don't need a valve job. We do maintenance, repairs, as well as full restorations of vintage BMW 2-valve boxers (1970-1996) which we like to film for you to enjoy. I have heard you set the valves where they go and let the noise be what it is. So I want to see some examples of some diy painted covers and perhaps some tips/methods to going about it. This is my second kit for my airhead. 4K views • 4 years ago on Thu Luc Belleter It is the center valve cover bolt, it doesn't effect the running of your engine, but you need to put it back in to ensure no oil lekkage starts to occuur (torque 24Nm ~ 17,7 ft-lbs) on Thu 3 Kyle L. NO control cable, except the ACTUAL ORIGINAL (AS SHIPPED ON A BRAND NEW /5), is to be internally lubricated. I used coat hanger wire with enough repeated force to break it Feb 20, 2008 · (Getting the burned mixture out is good, too, hence larger exhuast valves. . Due to the cooling demands of the engine and the design of the valvetrain, the valve guides should be closely scrutinized and addressed if needed. 080mm free play. After decades of overhauling BMW motorcycle heads, we found the Sep 3, 2012 · My airhead is only running on 1 cylinder. Models Include: R45, R50, R60, R65, R75, R80, R90, R100 BMW's own valve cover gaskets can often be reused almost forever. 15mm and exhaust . 20 for intake/exhaust, which differs from Clymers. Oct 16, 2008 · The second new seat material was introduced in the production of the '85 models. 40+ years experience. As mentioned before, top dead center occurs just after (or when) the intake valve closes. It has everything you need to do the job right. I believe it is common practice to rebuild Airhead top ends somewhere around 100,000 miles. Dec 6, 2014 · Oak told me he never used these seats when he did valve jobs--I think he used seats for the oil head machines and had them center-less ground to fit the Airhead seat pockets. Overhaul starter motor. See-Through Valve Cover Set for all BMW Airheads - sold as a pair and includes the hardware. I'm thinking about taking a 1/4 sheet electric sander and danding down the horizontal lines along with the BMW insignia. I would like to touch up the painted parts of the engine, and the frame. Brandenburger Make sure to remove the nut from the stud Jul 14, 2011 · The challenge for your valve cover job is to get the paint to adhere to the Alu and bond well. Did it a few years- basic cleaning, sanding and high temp paint. Just a reminder to back off the head nuts slightly and then retorque. of the guide so I can determine clearance? Do the valves need replacing? Should I replace the valves and valve guides together? Is it possible to get a valve guide slightly undersized and hone or ream it to size? What would the BMW gurus do? Over the past year I‘ve been working on restoring a BMW R60/5 and I finally got around to rebuild the engine. One of the earliest service jobs a new Airhead owner will do is check & adjust the cylinder head intake & exhaust valve clearances. 20mm Feeler Gauge 1 x . BMW Airhead Compression and Leakdown Test Procedure The BMW Guy • 6. 12 USD Crankshaft Rear Main Seal Tool - BMW Airhead $78. Dec 21, 2004 · A valve job on an airhead is simple and uncomplicated. Models Include: R45, R50, R60, R65, R75, R80, R90, R100 Share your experiences from past trips on airhead bikes, ask questions about areas new to you, or get help planning your next weekend ride or long vacation. From the pre-war era up to the final Airhead models of the mid 1990’s, we aren’t distracted by other brands or other models. I use petroleum oil on the head side of the valve cover gaskets ON PURPOSE, which eventually carbonizes & acts like a high temperature mild glue. BMW airhead motorcycle pushrod tubes and pushrod tube seals, valve cover studs, cylinder sealing Feb 16, 2010 · So while your engine benefits from a lead-substitute additive, the '81-'84 heads will only benefit from replacement of the valve seats and, probably, valves and valve guides. HD Video Tutorials along with High quality replacement parts to keep your classic BMW Airhead on the road. Both cylinders on this old gal, at 110,000 miles Whenever I can afford it, I go with a professional paint job on my bikes, including hand pinstriping; a top-notch pro finish is the eventual goal for every restoration ride in my stable. ) BMW retained same camshaft and timing for all displacement Airheads during the era of 1000 engines, so changes were made to valve sizes, accompanied by larger carburetors. I'm assuming the BMW manual is correct, any input from the forum? May 16, 2009 · Just a simple one. Obviously, yours isn't. It's getting plenty of fuel. This flow is varying in velocity & pressure, depending on the valve opening & more complicated things. Pay close attention to the intake valve position along with the flywheel markings. Snowbum's BMW Motorcycle Repair & Information Website The ads above are Google-sponsored. It seems that BMW made an 'improvement' for the 1980 to 1984 models that made things MUCH worse. Most high mileage 81-84's will have had hardened Stellite seats installed by now, if not, non-hardened seats still went 50-80,000 miles before needing a valve job. The BMW mechanic ran a 'warm' compression test as I watched. But, it also increased valve and valve seat temperature accelerating exhaust valve failure as discussed above. These include but aren't limited to: Custom Exhaust Systems Conversions Sidecar Builds and Oct 6, 2010 · I was going to re-paint my bike over the winter and want to use original paint. Mar 9, 2014 · Heads and cylinders removed from the 1983 R100 with the heads off to get a valve job. Oct 30, 2021 · Re: R80/7 1978 Correct Valve Clearance by barryh » Fri Nov 12, 2021 10:54 pm BMW issued service bulletins in 81 and 82 to increase the exhaust valve clearances to 0. Discussions about Airhead Beemers Club sponsored Rendezvous, Barley Therapies, Tech Days, or other events should be placed in the Rendezvous & Events Topic area. Oct 30, 2023 · Thinking it may need seat replacement as well as new valves. boxer2valve. Jan 10, 2016 · Actually the intake and exhaust ports on airheads are a very good design for touring, which pretty much covers the majority of BMW riders. 10mm or . 5 8 Nm (6 ft-lbs) " Also, I found that the nut at the left of the rocker arm is a cylinder head fastener. Whether your looking to do a S conversion or add handlebar turnsignals for a classic look Jun 8, 2011 · Hey guys, I was just wondering if anyone has successfully stripped their valve covers from an m62 and REPAINTED them themselves. Follow along with these tutorials as William restores a R90/6 from Barn to Workshop to the Open Road! These instructional videos are always filled with great tricks to help you with your own Airhead 2 valve project. Last time I did an airhead valve job was in the mid 80’s. In this video I replace my scuffed and chipped black /7 valve covers for a set of new reproduction natural finish /6 valve covers. My mechanic said to get away from stop 'n go traffic to break in the engine, and not to go over 100mph. This is an easy job that Mar 9, 2014 · It sounds like the cylinder for which you are attempting to adjust the valve clearance is not at top dead center (OT). Thanks, Chuck Swenson MOA#9162 Aug 5, 2009 · Airheads typically 'need' valve work around 80-90k, provided it's not one of the early 80s bikes that had valve "issues". Sitting for years may be worse than ridden for years. The foundation of the cylinder heads: Valve guides and the valve job The valve guides are an important factor for any engine, but particularly on BMW's airhead engine. there is now access to do a cleaning of the engine and frame. In this eight episode William, walks you through how to install the gearbox and clutch release mechanism, install the fuel lines In this video William walks you through how to rebuild the front wheel brake caliper, replace the front wheel bearings and prepare the master cylinder for installation. You could try Bob's BMW and/or Max BMW and see what they do for customers. We include all 3 feeler gauges to do the job right! Feb 26, 2018 · This oil kit is for my 1992 BMW R100RT. They weren’t called “Airheads” at the time by anyone because they were all BMW-made! The first motorcycle BMW made was the BMW R 32. Perhaps because the guide has something around . I did everything by the book and saw zero improvement with gas mileage, power, etc. You are really performing a diagnostic function. 99 USD Nov 13, 2005 · I bought into the hype about dual plugging an Airhead around 1989 with a 81 Rt that I owned at the time. At this time of year, I'm not even tempted to Sep 20, 2008 · This previous April, I was prepared to spend some time and $$ on the old 1991 R100GS. Head rebuilding, Transmissions, Final Drives, and more. We carry brands such as BOSCH, MAHLE, MANN, VALEO, NGK, NTK, ENDURALAST, CONTINENTAL CONTITECH, BERU, DYNATEK, WESTCO, DEKA AND MORE, euro moto electrics is known most for our Ducati Energia 450 watt charging system retro-fitted to BMW R Airhead and Moto Guzzi with Bosch 3-phase charging system. D. Complete BMW Airhead and Vintage Motorcycle cylinder head repair including guide and seat replacement and service. Looked good initially, however within a year looked beat again. I have searched this forum unsuccessfully for information on the type of paint I can use to touch up the engine and frame. Smoking!! Bmw airhead probably needs a valve job. You are postponing the necessity to replace your valve seats by using the additive. Sep 20, 2015 · Today, I tried to replace my breather valve to the new reed type. com specializes in BMW motorcycles from 1969 to 1995. Airhead Barn is a BMW Airhead exclusive motorcycle repair and restoration shop servicing Colorado Front Range. Jan 12, 2021 · Airhead engines are the old-style 2-valve air-cooled boxer engine made before 1992 when the last of them were made. Valve recession is technically the receding of the valve head deeper, and ever deeper into the valve seat as the seat material wears away. Jun 24, 2019 · These 1983 heads are used with BMW’s Pulse-air system. This valve head deformation common on the 80 through 84 models is not true "valve recession" in a technical sense. However, during my "ride-as-I-restore" process, I have forayed into do-it-yourself economy bodywork refurbishment for Airheads with passable results for my fenders and sidecovers. We maintain in our North Carolina a substantial inventory of Airhead replacement parts for your classic BMW. This is my first airhead (1979 r100rs) and I intend on doing most of the work on it myself. Everything seems fine with the exception of a leaky valve cover gasket. At the same time the owner might well check & possibly adjust the rocker arms end play. The first hurdle is removing the old ones. The coil is okay. 99 USD Clutch Centering Tool - BMW Airhead 1955-1980; 83 30 0 401 763 $29. Your Global Source for BMW Motorcycle Parts ! Jun 28, 2023 · Northwoods Airheads has/had the tool/jig for this job he rented out, not sure he's still out there. The valve adjustment measurements state . 10mm Feeler Gauge 1 x . 94mm and 7. The 336 cam, a factory racing part from BMW, increases the cam lobe duration (the length of time the valves are open). The following are independent BMW motorcycle mechanics that have been recommended, or have asked for a listing. The book says . You can use a mild sealant, such as NON-permanent Form-a-Gasket, VERY thinly. Note: Do not Sandblast/Beadblast your cover. 20mm. Changing the guides must be done first; the BMW valve is lapped in using the new guides otherwise they won’t run true. Notes: 1. This new series will be focusing on the maintenance and repair of Airheads. I pulled the carb & cleaned it. Application: BMW Airhead ALL from 1970-1995. There is no locating step machined into the rocker blocks. Glasurit's very old literature does not seem to have been included to a full extent in Glasurit's on-line charts, for motorcycles, although listed in that category. Look for I'm a professional mechanic with no prior experience working on Airheads. I sent the heads to "Oak" Oakleshen who is an expert at this conversion. Dec 13, 2011 · Heres the head. Complete cylinder head overhaul kit with unleaded compatible valves and seats. 15mm Feeler Gauge Depending on which service manual you use; BMW, Clymer, Haynes, etc (or your preference), your intake valve clearance will either be . This was designed to circulate fuel vapors from the crankcase back to the exhaust valve port so they would be burned. Airheads not running valve guide seals is pretty unique. Having the metal clean is imperative & it would help if the surface is freshly bead/shell blasted or scratched with an autobody 3M medium pad , then use a primer that's suited for the purpose. Keeping everything original is important to me, but due to some scratches here and Aug 21, 2009 · Please excuse my noobness. Plenty of spark. Aug 8, 2024 · My nephew who ran an engine rebuilders wouldn't work on my airhead heads because they didn't have a suitable tool although his shop did other work on the engines for various well known british BMW airhead specialists. Suggestions & information for improving performance keeping reliability and Feb 1, 2023 · « Previous Thread Next Thread » Our notes on Valve Cover refinishing BMW Airhead Experts. The basic engine design that came out in 1969 was very good. Nov 11, 2020 · But they had other problems, I once got only 12,000 miles out of a valve job on a 1972 Shovel, before the rear exhaust valve began to stick. A demonstration of both the breaking down, and rebuilding of, a Bing 32mm carburetor 64/32/13 & 14 series carb for a BMW R75/5 airhead. Three variations were released: the /5 in 1969, the /6 in 1974, and the /7 in 1977. I've bought from him around 4 years ago. BMW Airhead Boxer Engines, Electricals, Suspension, Frame, brakes, etc. BMW launched it at the Berlin Motor Show in 1923. Always filled with great tricks to help you with your own Airhead project. I tried using a slide hammer, heat gun, penetrating oil and every other idea I can come up with to no avail. So it was ride awhile then fix awhile, with most any MC back then, but much less so with Airheads. Model Years 1969-1996. We offer a variety of custom fabrication services. BMW Motorcycle Paint color Codes and schemesIn my private files I have a lot of information on old BMW car paints, you can ask, on the Airheads LIST, about a specific model, year, color. I just cannot get the old breather bottom part to budge. Airhead Parts BMW Airhead 2-Valve Boxer Twins. Is this normal? Dec 3, 2007 · Locknut, valve adjusting screw, M6 x 0. Aligning rocker gear, /5 Airhead; & information on rocker bushings used on the /5: /5 models with original valve gear need extra care to align the rockers/shafts/blocks assemblies. Why adjust BMW motorcycle valves? Valve adjustment is one of the most misunderstood maintenance items on the BMW. What would make a guide wear so quickly? I've got the Swiss valves and high temp guides from Motobins. BMW Airhead 2-Valve Boxer Twins. The table is listed by state or Canadian province (no one has submitted other international listings yet!) Comments in quotes are from list members, otherwise the comments are what the shop owners say about themselves. You are in control!! Follow along with these video tutorials as William restores classic airheads from Workshop to the Open Road! These instructional videos are always filled with great tricks to help you with your own Airhead 2 valve project. Oct 28, 2009 · I just finished up a valve lash job on my r75/5 at 56,600 miles and noticed by left side exhaust push rod wasn't lining up completely straight with the screw end of the rocker arm. Offering everything from simple service and tuning to complete restorations, Air Support BMW is your premiere choice when it comes to caring for your air cooled BMW motorcycle, Airhead, snowbum, snobum, oiling system, breather disc and reed breather, breather system, oil temperature thermostat HD Video Tutorials along with High quality replacement parts to keep your classic BMW Airhead on the road. I know there are differences of opinion Jul 16, 2022 · BMW motorcycle valve adjustment procedures by Duane Ausherman This page applies to the BMW motorcycle models R50/5, R60/5, R75/5, R60/6, R75/6, R90/6, R90S, and some later models. I was wondering where is a good source to buy some. For example, the engine will run very well with a Build Your Dream Custom Airhead Scroll down to view the parts and get started! Our cafe racer section below contains parts we hand picked to help get you started on your own custom project. For example, the engine will run very well with a May 13, 2015 · I have replaced the OEM valve cover gaskets with the orange silicone valve cover gaskets. Quite a lot of this mechanical work would apply to 1981 and on airheads. 15 and . Ted Porter's BeemerShop offers exceptional quality replacement, accessory & classic replica parts. This helped BMW meet EPA hydrocarbon emission requirements. Aug 4, 2025 · Part #: ValveCover240C. Shop now Feb 3, 2016 · Looking for advise on prep and painting. Prior to 1981, the ignition used points. I was looking into powdercoating them, but I don't think I can wait as long as it would take for the shop to do it. There is also a mild increase in valve lift. They were HD Video Tutorials along with High quality replacement parts to keep your classic BMW Airhead on the road. Some 1980-1984 Airheads got valve jobs, and the same bad situation started-up again. Nov 15, 2011 · 1986 R65 200,000km, new pistons, valves, guides etc 30,000km ago. BMW utilized it in its motorcycles between 1969 and 1995. 2mm. 93mm. The bike needed a valve job anyway because I was experiencing valve recession so that was the only benefit from all of the work since Cylinder Head Torque and Valve Clearance Adjustment How to buy a bmw airhead motorcycle Mar 4, 2014 · Some simple ones first to apply to a lot of people, (tune ups, valve setting, general settings, cables, etc. Does anyone know what year airheads BMW installed hardened or unleaded gas capable valve seats in the cylinders? I tried a search and came up empty. Dec 10, 2003 · As you can see from the picture below, I have a little more cleaning to do to it before I start. Clicking on them at every visit helps support this website! Clicking on something inside an advertisement helps even more! Modifications For Performance. Factory tools (or better) are used wherever possible. You are here: Home > Airhead > Engine & Drivetrain > Engine > Cylinder > Heads & Valves > Cylinder Heads 1973-1996 With over two decades of custom BMW Airhead builds and restorations under our belt, no job is too big or too small for us. It is nice to order everything you need in one purchase. I had no significant prior $109. SUPERFLOW FLOW BENCH WITH CUSTOM AIRHEAD ADAPTERS AND VALVE FIXTURES MADE BY MAX BMW Motorcycles. I make certain that the gaskets are clean before applying (or re-applying). It began using electronic ignition, Nikasil cylinders, and a lighter flywheel Jan 5, 2018 · Below is the latest in the series of boxer2valve videos, taking a barn find R90 and performing all the maintenance required to fix it up mechanically. The valve's keeper grooves are another spot that causes troubles with many aftermarket valves and so on. I had Max BMW in NH rebuild the heads on my R50/5 and it wasnt cheap, but they did it rather quick and they stood behind their work when I had an issue with a sticking valve (They made the valve to guide clerance a little to tight on one valve) We're closing up on the R75/6 rebuild series and I couldn't be happier with the results! Apr 10, 2015 · While BMW’s original maintenance schedule called for checking/adjusting the valves every 8,500 miles, we tend to operate on a 5,000-mile schedule if only because adjusting the valves on these bikes is so easy. Jul 13, 2006 · BMW motorcycle valve adjustment procedures by Duane Ausherman This page applies to the BMW motorcycle models R50/5, R60/5, R75/5, R60/6, R75/6, R90/6, R90S and some later models. BTW, Glasurit paints are distributed by BASF About Boxer 2 Valve Boxer 2 Valve is the premium supplier for all of your classic BMW Airhead motorcycle replacement parts and service. 99 USD Feeler Gauge 2 Valve Airhead $20. #rustygoldmotorshop #bmwr100 10K Dislike May 24, 2009 · Just got my heads back from a complete valve job, and assembled the bike. Jun 25, 2018 · Vech sends his heads offI believe he sent my R25/2 head to Memphis Motor Werks. Full servic machine shop for all BMW and Moto Guzzi motorcycle components. Chasing why the compression was low on the left cyclinder I found that the exhaust valve was not seating properly. Feb 12, 2009 · Breaking in Rebuilt Engine Howdy, I just had the top end of my '78 R100 rebuilt completely and am looking for advice on breaking in the engine. Maybe it works so well you will never have to replace the valve seats. Overhaul transmission. First, the retainers must be removed, and then the guides need to be driven down and out of the ports after the heads are heated. Any tips on measuring the I. Next I switched the coil wires. We service BMW air cooled motorcycles exclusively. Jul 31, 2009 · I just received my new BMW Owners manual for my R75. After capturing 2500 images and about half that in video footage, I’ve successfully uploaded the complete BMW engine assembly video to YouTube: YouTube - Restoring a 1972 BMW R60/5 Airhead Engine The entire video editing process spanned multiple days, and I sincerely hope this Cylinder head components for repair and rebuilding. Any suggestions how Mar 3, 2017 · A stock type 247 airhead engine is torquey, but does not rev all the way to the red line easily — it feels like it runs out of breath over 5000 RPM. I also want to replace my original "S" fairing windscreen at the same time. carb balancing, compression testing; then some of the more involved but not too in depth stuff, like exhaust nuts, carb rebuilds, head bearings re-greasing, wheel bearings, drive spline re-lube, clutch spline re-lube, head/ring removal In fact, at any time, intake valve open or not, but engine rotating, there is still some flow into the intake system, as this flow pressurizes against itself, readying itself for the next opening of the intake valve, so-to-speak. Everything you need to overhaul the cylinder heads on Airhead models with 42mm intake valves and 38mm exhaust valves such as: All R75 All R80 Not suitable for upsized models with 40mm exhaust valves such as R75 and R80 with R100 Cylinder kit installed. 4byfe cii fpbinjq wchnu junsf czik lx8ud nfhlmv lb2d dlgvu4