Brake Vibrations and a Surprising End 

If you had just thrown parts at it and replaced all four rotors this problem solving would have been delayed, perhaps forever. I’m glad you approached this issue so methodically. Great video

Your vids bring a zen feeling to restoration. I'm also afflicted with the perfectionist bug. "Zen and the art of Porsche restoration"

This episode was like a thriller that catching the murderer in the last seconds! Well done, Inspector Columbo!

Holy cow. That look of satisfaction on your face when you finally nailed the problem was priceless. But.... now I wonder how are we mortals ever to hope that a shop tech will run any similar to problem to ground like you did? More videos please at a 1x/wk pace minimum please :)

This by far the most German car channel there is and I love it 😁

Every time I watch a Greasy Fingers video I learn something new and obscure that other restoration cahnnels don't cover. Also I would love to learn more about your history in restoring cars, your shop, it's evolution and how the business is currently going. Maybe we'll see such a video in the future.

Great findings, cangrats to you, Johannes!

Your prudence in tracking down the specifics of this issue are impressive, certainly a labor of love. This is perhaps the one time my "to hell with it - I'll just replace all of the rotors and hubs" would have actually saved some time. However, certainly not as rewarding.

What a satisfying video to watch, thank you. I've never seen such a deep dive into brake (and hub/wheel-carrier) set-up on ANY car. Along with the one on geometry a few months ago, it makes one realise that very, very few cars of any substantial age are set up properly, and it's probably the reason that people are often disenchanted with their heroes when they drive them. Good to see you remind people that rubber suspension bushes are NOT bearings, I've cringed watching people bolt them up with the suspension hanging. ETA >> perhaps not something you'd want to do too often, but letting 911 owners who are thinking about paying you to set up their cars drive Walter might convince them.

I admire your persistence and the 'Deutsche Gründlichkeit' that you show and put in action! An admirer, freundlichen gruessen als Holland.

Wow that was some intense investigation work, you have the patience of a saint 😇 So glad you sorted it. Love this channel 🚙💨✨

Always nice to watch your work. Replaced a few brake disks and wheel bearings om my cars, but never given the «measurements» much thougt. Learned a lot from this video of your problem solving over the last months 😀👍

Really great to see the channel is growing nicely - it’s been a journey. Well done.

Tenacity always pays 😅 It is good to see you again after so many months of absence, greasy finger !👍 François

I enjoyed This episode very much

“Let me show you the results with a metaphor” 😄😁😆 I love everything about your work, especially the writing.

thank you for your explanation, that any vibration can come from rear wheels. That is exactely what I learnt on our last BMW. This car always had vibrations. First, I changed the front brakes, then the rear brakes. Less vibrations, but still too much. I changed all parts off the front axle. Less vibrations, but stil too much. And then, I changed the rear tires. That was the problem!

Excellent film, thank you sir! I went through similar headache a few years ago on my 911SC. Spent much time and money chasing an intermittent vibration only felt during hard braking from speed. After replacing many of the 'obvious' parts like you it turned out that one of the brake flex lines was starting to deteriorate internally and was acting like a valve!

I'm in the middle of a complete rebuild of my 1977 911. I will surely measure my brake components and carrier runout. Thanks so much for the in depth investigation.

Greasy Fingers is my favorite Channel … is just smooth, easy and cool …

EXTRAORDINARY patience, discipline and resolve here. I especially appreciate the wise words of advice on using a block of wood and a jack to preload the suspenion before tightening tp prevent early bushing failure. That's something I've read about and remembered once you brought it up but if not for your reminder, I might have overlooked this valuable suggestion. Bravo

Love your content. Watched all to date from JG in NSW Australia.

A lot of guys ruin the wheel carriers by improper removal or installation of the bearing races. They get them in cocked. I always heated the outside and used the proper puller. On install I put the races in the freezer overnight and heated the wheel carrier. No problems . If they are cocked you will know when you try to adjust the wheel bearings. You won’t be able to get the play out with tightening down the nut so you can still move the washer with a screw driver. Once I replaced the carriers installed the bearing races the proper way. My wheel bearing adjustment problem went away. Good video.

Wow Johannes, fixing this annoying vibration was certainly hard won. On my very first car, I suffered from a very similar vibration and it drove me crazy. After 2 years of changing everything under the sun, the culprit turned out to be a faulty tire. It seemed one or some of the internal cords had broken and this caused the tire to distort under load and speed. Congratulations on tracking down the the root cause - I am sure you were so happy.

I celebrate your triumph and admire your persistence!

Großartig! Tolle Fehlersuche, deren vermeintliche Behebung und am Ende eine überraschend einfache Lösung! Jedes neue Video hat für mich erste Priorität bei YT und ist dann auch noch ein Englischtraining - Danke dafür!

Sorry Johannes, I did mean to say, great production and great music. Thank you for working so hard to create world class content - a real Friday evening treat to watch..

Well, I admire your persistence. Amazing how these challenges with cars become all-consuming until solved!

Love the smile when you rotate the zimmerman!!

Brilliant work! And excellent tip for any carthusiasts out there! Thanks for this sharing of good break debug.

Great video as always!

Your video is so on point showing the tasks and obstructions you have to overcome to get something into almost as new condition. I got to learn throughout the years that replacing for new often does not solve the problem, even worse, it sometimes creates new ones. And sorting those out quite often sends you one a wrong path of diagnosis, as you initially never doubt the new, just replaced, components. So you find yourself barking at the wrong tree and then spend countless hours to encircle the issue. Had that case with front drum breaks on a 62 beetle. After the third set of drums I removed the perfectly round & new Technomagnesio wheels and put the rather oval steel wheels on. Turned out, the way the wheel bolts load tension on the entity warps the drum even at a low 80Nm.

Persistence pays off!

I have similar problem from months on cayman S, tried so many things without solving. I feel streess and sad but now your video really inspired me to do all my best and i will find the problem! You send me so positivity and i don't know how thank you ❤ One of the best film i ever see, very emotional! You have new subscriber Thank you!

Es ist so schön zu segen, das mein Lieblingskanal wieder zurück ist. Wenn Sie jemals in Norwegen sind, serviere ich Ihnen kalte norwegishe bier. Ich hoffe das Sie mir entschuldigen kan, für meine schlechte Deusch kanst.

Such an engineeringly excellent, amuzing and ultimately satisfying episode. I yearn for one of these cars but even with NZ$100,000+ to spend on a 911 3.2 Coupe, I'm starting to come to terms with not ever being able to afford a good one. They're stupid money in New Zealand, the UK cars are rusty and all the 911s in Japan are LHD. So I may just have to live vicariously through your excellent channel.

Nice work, I have a similar problem with my 1970 911, but that is vibration when driving and braking... a job for the winter. You have inspired me!

Fantastic to see ! Your persistence is an inspiration and great help . Thank you !!

I was starting to lean toward a bad tire or perhaps wheel. Glad you found the culprit and Walter is now more sorted than before.

It seems brake disc runout and thickness variation are very important! Good video, and I love seeing the process of eliminating factors of a complex problem. It helps to know there are others who are hunting for solutions for a long time.

I love your tenacity! This is my favorite channel 👍

Well done👍

Some serious attention to detail and diagnosis. Congrats on another great video!

Super video, I’m loving your almost obsessional attention to detail.😊

'Six tenth of a Millimeter, it's unbelievable' :)

Thank you for another great video Johannes! I must admit your multiple visits to the press for the rear wheel bearings gave me PTSD from work I just had to repeat three times last month on my rear suspension. Also, I hear you got a tour of my Aircooled shop when you were in Toronto...sorry I missed meeting you! Next time, Mike.

Congrats on your success Johannes! Many years ago, turning new rotors on a brake lathe was common procedure before everyone started just installing them. It wasn't uncommon to find that even new rotors needed to be resurfaced.

Well done! Time for a well earned beer! “Failure is not an option, work the problem” Apollo 13

another great post from @GreasyFingers... #Legend

well done 🙌

I was in a similar situation with a 1964 Volvo 1800S restoration. First measurements showed a big throw out of over 0,2 mm if I remember correctly, clearly warped rotors. At the time it seemed that the discs were not available any more for early models so I went and pressed the bolts from the hubs to remove the disc, unfortunately causing the hubs to warp with the intention of having the rotors turned. I had the hubs turned on a lathe and the discs turned on a brake lathe. Luckily at that point a supplier informed that the reproduction discs were available and on this one the hubs are integral to the discs. Brakes are totally smooth. I still have the original hubs and discs in a box, maybe one day I will test what kind of throw out can be reached.

I really love both of my 911SCs. I just gave my Targa to my son. Now I'm buying a 914 and I'm going to swap in a 911S engine and lighten it.

Great video… Nice work and good result! Enjoy driving Walter…

Learned new things again - thank you!

Great video as always, this will save many Diy mechanics a lot of time, Well done!

The on the car brake lathe can address this issue. As an auto mechanic I enjoy using the machine and getting near perfect brake run out measurements.

This is what I call automotive troubleshooting!

And I'll say again, this is why these cars are adored by engineers. Nice sleuthery.

Congrats !

well done for sticking with it. i'd probably have sold the car after the first year! :-)

Great episode it help me a lot with my Porsches

Well done. I wish my garage have a lift and all those tools :)

at 6.38: please search on line how to proper apply grease to a wheel bearing ... putting some grease on the external face is not enought .. and... greetings for your videos ... they are superb!!!

Hahaha, great video as per usual, maniac channel indeed 😁

Not that it matters much, because of the content of all of your films is so good, but I love your choice of music. I started watching for the Giulia. I mow enjoy the Porsche ones as well.

I had a similar problem - but after changing my wheel bearings, brakes and doing my hubs it turned out to be my rear tires being flattened out from standing for too long with little air :-)

As an one in Engineering specifically in measuring brake rotors I was going to say thickness variation is a HUGE part in pedal vibration. All manufactures demand less than .01mm. Jeep in the early 2000's had to change caliper manufactures because the rubber seals in the pistons didn't pull the pad back off the rotors far enough when releasing the brakes. The pad then wore the "high" side of the rotor and the thickness variation caused pedal vibration...

Amazing tenacity shown while tracking down that left rear rotor source of the vibration. Thanks for documenting the steps thoroughly. Not only do I learn more about my Carrera, mechanically, but I also notice how well you’ve edited the video. There was a brief glimpse of the next main character; a SC?

Your perfectionism is mind blowing! How is Olivia doing, by the way? Thanks!

Great video, RU-vid suggested… I’ve subscribed.👍🏻😎

EPIC!!! friend had similar issue.

A lot of Porsche owners seem like they started off their addiction with BMWs. Did you ever have a BMW? Will we ever see any classic BMW content from you?

This (variation of thickness, or "ditches") in brake discs/rotors is something I've come across in the past. It can happen when the discs get overheated, and the brakes are held on while the discs cool off. Perhaps the car was tracked, and the driver didn't do a cool-down lap, for example, and sat for a while with the brakes applied. Many moons ago, there was an anti-theft device that would go between the steering wheel and the brake pedal, making the car immobile. These would cause the same problem on some cars if it was fitted, and the brakes were still hot. Or even if the car was driven with a seized calliper.

May you only have Good Vibrations as per the Beach Boys. Glad Walter is fixed.

Should have used the title Bad Vibrations and opened the video with a really awful cover band version! Seriously though, tremendous work. I have Z discs on my driving car with pads from EBC. Over the last 2 years I have given them absolute hell. They have never shown signs of giving up on me. Inspite of LFB whilst chasing motorbikes through the forest of blackness. Lass dich blicken wenn es um aussprechen geht. I did send you my number. Servus Mike.

Good old Walter

Great videos! I love the ocd lol😂

Cerakote looks unfinished - nice!

Great work and as always a pleasure to watch 👌 Rear disc manufacturer Zimmermann as well?

Loved the video! Time to look at the rest of your productions! You don’t find the need to pack the bearings completely with grease?

Love your channel, and wait for more , just wanted to know, why you don't use impact tools?

Relentless You are Johaness , I would like to get a guy like you close to my home to look at my 911’s. . Steph . Could you unveil a bit of your new 911 vintage 70’s ? 😊

As a regular mechanic I would have changed the rotors first as almost 95%of brake vibration is due to rotor damage/warping

I buy Zimmerman when possible, never had an issue with quality. Glad to see Walter healthy again. How is the 944?

I enjoyed the video and happy for you that it is now solved. I was wondering if you would have been able to correct the initial disk on a lathe? Cheers.

That’s for sharing your video. Where is the front jack point to lift the car?

Enjoyable watch, thankyou! How do you find the Twinbusche single post lift, other than hard on the head!!??

Ebay parts can be risky.....

Nice to watch whilst having a cup of tea and eating a donut ( music a touch too loud)

Are you aware of the works of Dizzie Rascal? ....in particular "Bonkers "?

Guessing before watching, not OEM hubs and bearings.

I do hope you have ‘packed’ that bearing more than just some grease on the outside.

I worked at Porsche cars Australia as an apprentice mechanic when your carrera was a near new car. I can tell you that the first operation we would have done in that situation was on-car disc machining. had you done this , problem would have been solved in one day , and at a fraction of what you spent. Im sorry for the loss of time and money you went through.. did you ever consider this or is it not a common operation where you are?

this is the diary of a psychopath..

Is that Cearah coating just a clear or is it like a paint I’ve heard the name but I don’t know what it is?

7 viewers either can't find joy in someone else's accomplishment, or are still chasing their brake vibrations. Can't please everyone, I guess.

You did not grease the bearing correctly.

I had this problem and it was loose wheel bearings.

i saw you using a German product called "Dr xxxx" to encapsulate rost (you mentioned that it was recommended by a friend of yours), It gives a flexibel, paintable surface as I remember it. Now I can't find it in your videos and maybe I am a bit lazy so I just ask here: What is the name of that product?

Great video! So you own a classic Porsche shop, should have figured:) Whats the name of your business?