BMW Airhead Brake Drum Reconditioning (BMW R60/5)
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- Опубликовано: 16 июл 2024
- Brake drum reconditioning is recommended, especially if you want to have good braking power on the road. Not only do your shoes wear out over time, but the braking surface on the inside of the brake drum wears off as well!
After 50 years it's time to resurface them with a carbide-cutting tool on a brake lathe. These brake drums were worn, glazed and they even had some rust build-up on them from sitting. The before and after images are stunning and I am really impressed with the finish.
This BMW R60/5 will have great breaking power once these get mounted back onto the bike and I'm sure the newer brake shoes will have an even better grip than the original brake shoes from the 70s. In an upcoming video, I'll feature these brake drums again to install the rear drive dog, so stay tuned for that!
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Similar Motorcycles: BMW R50/5, BMW R60/5, BMW R75/5, BMW R75/6, BMW R100/6, BMW R75/7, BMW R100/7
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Timestamps:
00:00 Brake Drum Reconditioning
00:08 Brake Lathe Overview
01:20 What Needs To Be Done?
03:47 Brake Lathe Setup & Machining
07:34 Final Results 
Авто/Мото
Man that's a nice machine to have! Excellent video as always 👍👍👍
It works flawlessly and I‘m very pleased with it! It will help out a lot for more brake drum and rotor projects:)
Huzzah, you're back!!
Yes I am! Even though this project is taking very long, I am making progress. My goal is to share every aspect of this motorcycle and go into full detail with every part. You will be able to see this when the engine is ready for the assembly and once all the parts get mounted back onto the frame. Thanks for your comment!!😃
@@WorkshopRebuild Just about to watch the video and am looking forward to the rebuild.
Hurrah indeed . Master presentation style thank you
Thank you Tim! I will be back with more BMW content once I get the cylinder heads back from the machine shop. 🏍😃👍🏽
Normally inside the drum should be marked the maximum allowance the inside can be machined, if not it should be listed in the service manual know as had to get rear wheel on gsx250 machined by local machine shop as it gone oval giving a pulseing feel to the brake when in use.
Great comment! These brake drums have the maximum diameter cast right onto the outside. Luckily I was still well within spec to be able to reuse the brake drums!
I‘m glad you were able to get your brakes addressed by your local machine shop. I have a feeling your braking power will be much better now.
Thanks for sharing this😃👍🏽 Regards Andreas
Very interesting, thanks!
Hi Jeff, thanks for tuning in and leaving a comment! Regards Andreas
Another great video! Kudos for getting a brake lathe - not something you see every day. The front brake on my 60/5 was not great when I got it, and I had the wheel rebuilt, the drum skimmed and then the shoes re-lined and arced to suit the newly skimmed drum. You don’t mention this, but by skimming the drum it essentially ends up slightly oversize and standard shoes won’t make good contact? Perhaps you are going to do something similar in a future video!
Thank you for your feedback, Simon! This brake lathe was a really good deal and it had all the tooling (boring bars, inserts and tapered tools), so I couldn‘t pass on it. These brake lathes are becoming a little bit outdated, because nowadays most mechanics just purchase new parts...but in this case I still think it‘s worth saving the old hubs and it might be a little bit cheaper as well😄
You got everything done correctly on your BMW R60/5 and I‘m glad you mentioned this!
Once your inner diameter (hub) is machined, it is simply oversized. If you install new or used brake shoes, they will only have contact on two spots, because the diameter is too small.
To make sure they have contact on the entire surface, one must take a skim-cut on the outside of the brake shoes. I have not done this yet, because I am still deciding if I will re-install the old brake shoes that are in very good condition or if I will purchase two new sets, to then skim down.
Since this isn‘t something everyone can just do at home, I probably won‘t dive too deep into this topic, but it will be shown within this video series.
Thanks again for another awesome comment of yours! Regards Andreas
@@WorkshopRebuild Some say the old shoes are still good and you can still buy shoes with essentially the same compound. Mine at 30k was still by all appearances barely worn at all, but I chose to go with a newer grippier (but faster wearing) compound because the vehicles we are up against on todays roads tend to be able to stop a lot quicker than they did 50 years ago! Setting up the 2LS front brake is a bit of an art, but I found a couple of well known sites on the web invaluable. Given your skills, you probably won't need to refer to them! Contrary to expectation, the drum brake on the /5s is more powerful than the single disc on the /6s that followed.
So if one didn’t have this machine, can one just buy new ones for the old bikes from bmw?
You would have to get in touch with your closest BMW parts supplier. They will definitely be able to tell you if they can source one or not. This might not be your cheapest option, as BMW parts are pretty expensive. Another alternative would be to join a few Facebook BMW motorcycle groups or search through eBay. There are always great deals to be found. I hope this helps and if you have any other questions, feel free to ask! Regards Andreas
Brake shoes....not brake pads
Excuse me for my error.
just my OCD kicking in :)
Too many "SHORTS"
I have many long-format videos planned and I'm working towards them! In the meantime when I have some content to share I try to upload short videos. Would you prefer community posts (pictures)? Regards Andreas
@@WorkshopRebuild You do an excellent job on your videos but my subscriptions page is getting filled up with Shorts everyday. I rarely watch shorts.