BMW Airhead Mechanicals #02 CLUTCH | MAIN SEAL | OIL PUMP
Вставка
- Опубліковано 8 лют 2025
- Download your copy of this episode to view anytime and anywhere.
We now have Downloads of each episode and the entire series available through our website for a VERY small price!
Why pay for a download? Not only does this help ensure you will always have access to this video but it also supports our video team with proceeds for video equipment maintenance and new production gear to help us create additional 2 Valve focused videos.
Find the Digital Downloads and Parts Used in this video here:
www.boxer2valv...
This new series will be focusing on the maintenance and repair of Airheads. Quite a lot of this mechanical work would apply to 1981 and on airheads. This tutorial is using the former 1985 R80 RT that William converted to a 1985 R80 S variant in our last video series.
In this second episode William, shows you how to replace the Main Seal, Oil Pump and Clutch. This episode applies to 1981+ BMW airheads. Follow along with William as he walks you through each step of the mechanical maintenance and repairs to keep these amazing bikes on the road. Always filled with great tricks to help you with your own Airhead project. Follow along our instructional videos for working on your own BMW Airhead Classic. Learn valuable tips from William to save you both time and money on your R2V build!
boxer2valve.com specializes in BMW motorcycles from 1969 to 1995. Showing you what can be done in your own garage with a little help from us. If you have any questions about your bike or one of ours, please don't hesitate to contact us!
See you on the road!-
Team Boxer 2 valve
Download your copy of this episode to view anytime and anywhere.
We now have Downloads of each episode and the entire series available through our website for a VERY small price!
Why pay for a download? Not only does this help ensure you will always have access to this video but it also supports our video team with proceeds for video equipment maintenance and new production gear to help us create additional 2 Valve focused videos.
Find the Digital Downloads and Parts Used in this video here:
www.boxer2valve.com/1981-on-mechanical-episode-02-81-clutch-oil-pump-main-seal.html
I recall 32 years ago, I had oil leaking after replacing the main seal. As you know, the seal seats on the outside of the flywheel boss, but I suspected it was leaking between the crank shaft end and the boss ID, coming out around the 5 bolts. I stopped it by laying a small bead of RTV down into that recess. It stopped the leak but as a non-professional, I questioned the fix. I was delighted to discover in your video that this was in fact needed when you mentioned that in model years 75 or 76 BMW added an ‘O’ ring. My R90S is a 1974 so that was missing. Thanks for your great videos. Regards, Andy
Hi William, I think your videos are possibly the best maintainance instructions on youtube for all air cooled enthusiasts. I have recommended them to friends etc. You make everything very easy for the layman to understand. I started in about 83 with a 1980 R80 and currently have another 1980 R80 and ditto R100RS Both super bikes.
Wow, thanks!
Thanks William, I'm getting the parts together to do this job and your video provides exactly, all of the important and necessary information and details. All the best to you and yours, Dave.
These videos are awesome. Thanks for posting them. I wish William was my uncle.
Thanks for watching!
Your video series is surely the most helpful and well-presented of them all, William. I have a feeling that I'll be referring again to this particular one very soon. Thank you! 👍
Great to hear!
Hi William. Firstly compliments on your brilliant disposition. You carry yourself so well. Organized. A Great Teacher too. I'm no mechanic but I am enjoying following the bouncing ball to learn how my '91 GSPD boxer works. You take the mystery and intimidation out of the experience. I feel a tad more with it when discussing my motorcycle with my mechanic and gain a little confidence along each step of the way. Salud to the Bob Ross of Airheads! Thanks man.
Thanks for another excellent presentation, William. Another set of workaround tools and tips to avoid catastrophe, such as the crankshaft restrainer and the reason behind it. Marvellous.
It's great to learn about the '81-forward improvements to the clutch design and the standardisation across all these later two-valves. It means a larger market for replacement suppliers and an incentive to keep a good stock.
Its always a thrill when I see a notification that you have uploaded a fresh episode.
So happy that you can benefit from what we are doing!
Thank you for sharing so much information and telling us about your special tools and parts! Love your teaching style as well!
Thank you again for the most excellent video! Loved all the close up's and of course the expert advice with a lot of details on the various items. Very informative for sure.
Glad it was helpful!
nice video. I like that you guys had a lot of close up shots. very helpful.
More to come!
Excellent set of videos!
Thank you kindly!
Thank you very much William! I really appreciate your careful explanation of these procedures!😎
Awesome presentation...I did this work three years ago and my rear seal was still leaking after all that work but after watching the video and when I do it again this summer there are a couple of steps that I probably didn't do properly as I was flying blind...thanks very much.
Glad it helped
William @boxer2valve, thank you for your very informative video series. Question: In another video, you show a home-made timing cover puller. Wouldn't this make an ideal tool to hold the crankshaft while working on the clutch/rear main seal (assuming that you keep the timing cover bolts in place)? After watching your R90 video, it occurred to me that that might be much more secure than the strap you used in this video.
If an oil pump looks like the one you found, you want to check the cam followers. In particular later manufactured enigines often have heavily pitted cam followers.
Where was this video 2 months ago, when I needed it :D
Better late than never I guess. Thanks!
How many miles are on that bike? Excellent video.
First of all congratulate you on the great work of your videos, it is an effort that you transmit your knowledge and make such detailed videos, congratulations and thank you very much.
I am changing the clutch on my R100RS and I have decided to change it completely, all four pieces.
As the parts are new, how do I know the correct alignment position?
In your video I have seen that the pieces were new (SACHS), but they had some marks. If they were new parts, how did the alignment marks have?
Thanks in advance and regards from Spain.
Gold
Are there telltale ways or engine operating problems that will indicate if the thrust washer has fallen off the back of the crankshaft on a disassembly and not fixed by a previous owner or mechanic (oil leaks, engine noises, etc.)?
When you took the feeler gauges to the oil pump what would you do if the gaps were too large? And if they were too tight? Thank you for all your insight.
Too tight would probably not happen. Too loose would indicate that the opening in the motor block was damaged, assuming that the pump parts are new. Then it would be a question of how much beyond spec? A very small amount might not be a problem but more than for example 0.2mm beyond spec, it may be best to look for a good used motor.
Hi William Video very timely. I have just taken the gearbox off my 1987 R89 RT and today started on the clutch. but with all six bolts backed right off, the clutch is absolutely not moving. It is firmly stuck in place. I'm guessing I need to jar it somewhere to persuade it to move? Thanks for all the videos!
Glad the timing is good. This stuck clutch is not uncommon. the pins / pressure plate are probably rusted a little. A good " whack" with a hammer should break it loose.
Just as you said - bit of rust on the three pins. Came out easy after a whack!
Do these videos apply to the r65? I have an ‘82 r65 (twin shock) and hear that these are a bit of a different animal. What differences should I be aware of??
How similar is this to the 2004 R1150R?
Hi, awesome videos! Can’t find the first video in the series. Is it still uploaded?
They should all still be there. Please try finding our UA-cam channel or you can also visit our web site and there are links to all of the videos there. www.boxer2valve.com
Any idea when you’ll be doing the Dyna Ignition Install?
Hopefully we will get to this soon. Thanks for watching !
@@boxer2valve ok great, I am wanting to install mine but like to see how it’s done by a pro first.
Thanks again
Not wood, no... Nor things you find lying around either. Use something metal, man. Like in the video. Why compromise/