HOW TO REBORE AND HONE AN ENGINE BLOCK *Step By Step*

Getting the broken N14 Mini Cooper S engine rebored at Barum Engines to accommodate for the new .50mm oversized pistons.
Check Out Barum Engines HERE: / barumengines
Donate To The Channel Via Paypal HERE: bit.ly/3u2yEMz
Join Patreon HERE: / georgeausters
Tools I Use!
Sealey Cordless Ratchet Kit: amzn.to/3bgAsKn
Small Dewalt Impact Wrench: amzn.to/2T4igdi
Big Dewalt Impact Wrench: amzn.to/39NOrEu
Dewalt 5ah Battery: amzn.to/39tRRhL
Dewalt Battery Charger: amzn.to/3dkwlxb
Sealey Impact Socket Set: amzn.to/3a8zcpQ
Torx Socket Set: amzn.to/32EbnDV
Female Torx Socket Set: amzn.to/2PzAZMQ
Torque Wrench: amzn.to/2VF0YpI
Oil Drain Pan: amzn.to/3dm00pJ
Rhino Ramps: amzn.to/3zKGiy7
ISTA D / BMW Coding Kit: ebay.us/ofr42U
➢ Subscribe For Regular Videos ➢ goo.gl/x0Juyl
➢ Instagram: / georgeausters
➢ Facebook: / georgeausterspage
➢ Email: [e-mail]
➢Amazon Prime Free 30 Day Trial: amzn.to/2v6kVe5
➢Best Place For Car Parts: bit.ly/2swCcMz

[@PulediMolewa]

Old school engineering is the best

[@stuyoung8572]

……aaaaahhhhh, those were the days, pre-CNC, when it was all done by touch & feel 👍🏻❤️

[@GeorgeAusters]

Pure craftsmanship👌🏻

[@markymark7200]

Wow incredible precision, this is one skilled guy, great to watch.

[@GeorgeAusters]

Thanks Mark!

[@Impulse5596]

Amazing old school engineering, make sure Issac is encouraged to stay

[@IsaacBarum]

I love it, becoming a lost art and I’m glad to be involved!

[@chrisgermann6658]

Cool i follow these guys on youtube, they are more or less the cosworth motor re builders of the land lol

[@IsaacBarum]

Great to meet you George, hope you had a good experience and hope the build goes well

[@GeorgeAusters]

Likewise mate, you’re doing so well at such a young age!

[@fatwalletboy2]

Brilliant video. Lee really knows his onions..id have full faith in his work.

[@Roadkill7878]

Nice to see the process and the precision work involved

[@admodz3292]

Glad you took my advice on hitting up barum engines

[@derekgb3780]

Some classic, old school engineering going on there.

[@jamespadbury4302]

Lots of skill and knowledge right there, glad your pushing on with the mini 👍👍

[@simonharbour1701]

Thanks George. Very interesting and entertaining. Looking forward to seeing you put it back together

[@granthansen7438]

great video george, proper interesting stuff, takes me back to my days as an apprentice honing bores with an air drill on low speed and lapping valves in by hand on truck engines!!!

[@paulchilvers5032]

I spent some time in Jaguar's engine shop in the early 80's. It's interesting to see that the Imperial to metric issues that I experienced there still persist 40 years later

[@veritasaequitas9875]

Great video lads. Thanks.

[@DIZZYDAZZLER2011]

See these young kids will never do this old school engineering with their smart phone !!!

[@jackbean4693]

Great video lads

[@michaelclutton8446]

Thanks for the video, good to watch someone who is really skilled. I am looking forward to the rebuilding videos

[@GeorgeAusters]

Thanks Michael, a lot more to come on this car!👌🏻

[@craigtrigg4288]

great interesting mini video mate love minis

[@douglasgreen437]

Great job well explained..

[@GeorgeAusters]

Glad it was helpful!

[@911engineguy]

Very informative video. Nice work.

[@GeorgeAusters]

Cheers 🙌🏼

[@bowmankelley1]

Excellent video, a rare glimpse behind the scenes for me.

[@GeorgeAusters]

Thanks!

[@davidmclean6178]

Thanks George for the great video. I started watching you after Lee recommended you & mentioned that you love BMWs. I've been watching barum for a few months now and I have a 2004 BMW 530i that was originally bought in New York and after 4 years it came to Canada in British Columbia Vancouver where I live. I've got 173,000 miles on it and in the last 2 years I've replaced the front suspension and all the CCV system, all the solenoids, sensors, valves on the engine and it runs like new. It was great seeing the process Lee does from start to finish in a way that he would have a hard time doing without a camera man. Looking forward to seeing your car finished.

[@davidmclean6178]

I've always wondered what the block & line were on the top of the engine block when Lee showed the honing machine. Thanks to you we now know that it's the oiling line!

[@GeorgeAusters]

Glad to have you here David, hope you enjoy my videos👌🏻

[@dereklivesey3357]

A very interesting video George, you cannot beat old school engineering. I am looking forward to the rebuild, I hope it all goes well for you buddy. 👍👍

[@GeorgeAusters]

Cheers Derek!

[@neildonaldsonlotusexcelresto]

Is that the fellow that is restoring a TVR Cerbera?

[@barryford7135]

Already a subscriber to Lee at Barum engines, top bloke. 👍

[@GeorgeAusters]

Glad to hear!

[@davidedgar2818]

Very informative video. We had a great machine shop doing our machining. I wish I had taken more time to go in depth on certain machining processes that you have covered so well. I think I could have been a much better mechanic.

[@EnockKakamba]

Very interesting

[@professoram1711]

Very nice George, please keep going with this nice Mini project. Don't let bad facts dampen your efforts. Thank you a lot!

[@joehodgekins8423]

Just subscribed to Barum

[@BEYTEK]

grea insight

[@colinblick4903]

Ye I’ve had a few rebuilds done on several motors….. some ole stool skills are still the best… an by some top engineers😎👍🏼…. All best with the rebuild George.

[@GeorgeAusters]

Thanks Colin!

[@DocMackGarage]

That machine looks very very easy to use, I would have split the block and thrown my tools lol jk. That is one talented guy.

[@Slim885]

Lees new van in the end scenes 😎

[@GeorgeAusters]

Yep looks sweet!

[@malcolmbriggs4281]

My father used to rebore engine's he had a "Van Norman" machine.

[@ThePetersTravelshow]

Very interesting even if i don’t understand any of it🤪

[@GeorgeAusters]

Haha, thanks for the support! 👍🏻

[@markpearson5488]

Hi George, fantastic vid really, really enjoyed, hope you had a good experience there, must of been great to follow the whole process, you can probably guess what I'm going to say next? When you building it , how long till vid?? Your a legend 👏 Mark

[@GeorgeAusters]

I’ll get onto the rebuild as soon as possible, just need to finish up a couple of jobs on other projects first👍🏻

[@simon_sjw9973]

Cool video gents

[@GeorgeAusters]

Thanks Simon!

[@user-tv7ul9li6f]

What is the rule for clearance work?

[@tomrogers7]

Nice one George the rebore along with the standard material type oil scraper rings (as opposed to carbon) should cut your oil consumption considerably. I would have expected dry film lubricated skirts to have a slightly tighter piston to bore clearance vs Oem pistons? Not sure if they have the coating from new but my pistons certainly didn’t have any left 😂 Are you planning to going for big power or just standard. Cheers Tom

[@GeorgeAusters]

Agreed! And I have no plans to go big power in this, just want to build a virtually new engine while taking care of common issues👍🏻

[@seanpaul3050]

Is it okay to place the bare block down on concrete ? Not sure why you would do that without some carpet or something to protect from scratching the surfaces.

[@GeorgeAusters]

Don’t think it’s that serious👍🏻

[@seanpaul3050]

@@GeorgeAusters are these not mating surfaces which will be sealed with gaskets ? Or do you intend to have them skimmed at a later date ?

[@mrrberger]

Best to bore using the crank as the datum, not the top face however that machine is limiting. The hone machine is also limiting so you're not at the pointy end of high value machining or prepping. Best practice would have a course stone set the oil hone valleys and a fine stone over the top to sacrifice during ring bed in for flat peaks, that step may have been done and skipped to keep the vid shorter.

[@GeorgeAusters]

Yes I didn’t include absolutely everything or the vid would have been hours long👍🏻

[@Dannitk]

🙌🏼

[@V8Lovers]

👏

[@user-hc3dr6mx2c]

Can you try to get some extra HP out from the N73 V12? :)

[@GeorgeAusters]

That thing doesn't need anymore power haha!

[@user-hc3dr6mx2c]

@@GeorgeAusters Yeah, it does not need it, but: did you need to paint the brake calipers? ;) would be so cool to see mods that enhance some HP on the dyno

[@GeorgeAusters]

@@user-hc3dr6mx2c To be honest it's a very rare engine as is, mods are gonna be very very scarse for it

[@adamkeene6371]

Its sad to say that brilliant little companies like these will no longer be required with the ever growing EV vehicles. I'm hoping they will still have a part to play in the future

[@GeorgeAusters]

Of course they will. EVs are not the future and classic cars won’t just become extinct

[@neildonaldsonlotusexcelresto]

I think we will all be long gone before that happens...

[@solaimari]

Using machine and tools list

[@AbbasAlvi-kv2xl]

Hi

[@user-tv7ul9li6f]

ماهي قاعدة معرفة الخلوص

[@Garage_Fix]

what happened to this series, about the mini cooper engine rebuild?

[@GeorgeAusters]

Currently rebuilding it still, hope to have a video out next week!

[@Garage_Fix]

@@GeorgeAusters great, can't wait ... =)

[@marcjeffery]

No "PEACE" ending??

[@jonss1948]

You don't see that very often. Englishmen in Shorts.

[@GeorgeAusters]

I wear shorts 90% of the year😄

[@buz375]

I’ve dealt with machine shops in the past. My last time I took them the engine and was told they couldn’t hone the cylinders. I consider them to be lazy sorry f@@@@@.

[@timjackson1904]

I would have bought a more modern boring/milling machine rather than a van! Yours (not the van) seems seems ancient (well victorian lol) and slow/diff to set up. You should look at some of the american machines, they are on a different level. I would have said take a holiday to germany when they have a machine exhibition, but its going to get cold over there so get over to the states and check theirs out. Modernize or youl go the way of a lot of Brit eng companies. It would make a good video too.

[@nigelmackie9237]

Nothing wrong with old machines it’s been around this long for a reason. Well made and not much to go wrong. If it does the job why upgrade it. 😊

[@AbbasAlvi-kv2xl]

My job Saudi arabia

[@fredflintstoner596]

Mrs Richards: "I paid for a room with a view !" Basil: (pointing to the lovely view) "That is Torquay, Madam ." Mrs Richards: "It's not good enough!" Basil: "May I ask what you were expecting to see out of a Torquay hotel bedroom window ? Sydney Opera House, perhaps? the Hanging Gardens of Babylon? Herds of wildebeest sweeping majestically past?..." Mrs Richards: "Don't be silly! I expect to be able to see the sea!" Basil: "You can see the sea, it's over there between the land and the sky." Mrs Richards: "I'm not satisfied. But I shall stay. But I expect a reduction." Basil: "Why?! Because Krakatoa's not erupting at the moment ?"

[@GeorgeAusters]

😂

[@fredflintstoner596]

@@GeorgeAusters YOU WANT ROOM 16 FOR HIM ?

[@500bht]

N14 engine from a cooper s I think.

[@GeorgeAusters]

Correct👍🏻

[@philtucker1224]

Yes if you listened at the beginning he did say it was a 1600 S engine. Also says cooper S on the thumbnail. (However to most purists a real Cooper S engine is a 1275 of course, not a BMW!)

[@TheAlthian]

doesn't look like he's bored the block properly, hasn't gone deep enough, that step is likley to hit the piston.

[@GeorgeAusters]

I’m sure Lee knows what he’s doing😅

[@AbbasAlvi-kv2xl]

I'm interested job plz help me sir

[@mardina1a]

I could'nt bellive that they are using machines from stone age.

[@Impulse5596]

The same machines for when the engines were built, whats the problem? The problem is, these type of machine shops are quickly going to be extinct

[@neillambourne8448]

The machines work .why change

[@GeorgeAusters]

If it’s not broke, don’t fix it👍🏻

[@gavrumney2242]

Why mess with machines that work perfectly well still do the job they were designed for 70+ years on

[@nostrebordivad]

You actually need a 3”-4” mic and not a 2”-3” as he said!

[@Simb-l]

Second

[@GeorgeAusters]

🙌🏻

[@venle93]

I can see they refurbish with non genuine parts. 😮

[@GeorgeAusters]

Aye?

[@simonh870]

You would think that with modern manufacturing and modern oils that rebores would be a thing of the past considering many engines easily outlast the rest of the car. It just goes to show how bad these engines are.

[@GeorgeAusters]

The main problem is extended oil change intervals and driving hard from cold

[@simonh870]

@@GeorgeAusters You would think that BMW would have leanerd their lesson with long service intervals by now after all the problems they had with timing chains.

[@AbbasAlvi-kv2xl]

I'm boring man

[@scott2495]

If my pistons where different sizes they would be going straight back to the shop. This doesnt happen in a good quality brand. Buy cheap buy twice

[@GeorgeAusters]

Of course.. But you should ALWAYS check and never assume!

[@AbbasAlvi-kv2xl]

13 yars work ixperyanc