Rebuilding A BMW N47 Engine From Scratch After Bottom End Failure….Will It Ever Run???

[@Florin_Bolocan]

As I was observing the application of the RTV silicone I was actually thinking “that is one of the neatest jobs I’ve ever seen when it comes to RTV silicone” And then you explained exactly that, I wish more would understand why it’s important to not put too much silicone. Well done buddy and keep going! You are doing a great job! It’s a true pleasure to watch your videos.

[@W15Garage]

Thanks for watching! Years ago, I found a BMW factory engine assembly video and saw a robot applying RTV silicone on the timing cover. I was amazed, and ever since, I’ve been trying to imitate that.😀

[@ivorgotten2368]

Well done fella! Great to see your elation at your success. 😁

[@W15Garage]

@@ivorgotten2368 thanks for watching!😀

[@teammanagement7365]

to start with, great Job and your English is awesome !

[@W15Garage]

@@teammanagement7365 many thanks!

[@matthewwalters7126]

Brilliant so pleased for you and it sounds sweet👌glad your efforts have paid off,lovely neat job to with the rtv sealant,enjoyed watching this one 👍keep up your great work

[@W15Garage]

@@matthewwalters7126 thanks for watching! Appreciate it!!

[@matthewwalters7126]

@@W15Garage your welcome looking forward to the next video

[@nazeer3495]

im a bm mech i have did n20 and n55 motors,will be doing my first n47 with bearing knock.your videos are very helpful to me thank you.

[@W15Garage]

@@nazeer3495 thanks for watching! Appreciate it. Good luck with the project.

[@nazeer3495]

@@W15Garage thank you i will try and make a success of it ,appreciate the knowledge and detail you put into your work and seeing different videos of yours gives me quite abit of confidence in rebuilding it.🙏

[@W15Garage]

@@nazeer3495 If everything is measured properly, good quality parts are used it’s really easy. The only tricky part in your rebuild is going to be the cranckshaft…hopefully it’s not developed micro cracks on the spun bearing side, and can be saved.

[@W15Garage]

When I rebuilt the bottom end of my X3 N57, I used Kolbenschmidt bearings with great results, but I had to wait a considerable time to get them. King is a good alternative.

[@rebekak5555]

Well done, what a success!

[@W15Garage]

Thanks!

[@nemz7505]

That plastic pipe on the side of the head @9:51 is prone to cracking at the seems or leaking from the gasket. Always worth changing when the inlet manifold is off.

[@W15Garage]

@@nemz7505 yes it’s the coolant hose connector, common n47d20 issue. Original part is around £22 it’s worth replacing. Thanks for watching

[@sonnyjim1976]

Fantastic work as always ...... love the videos 👍

[@W15Garage]

Thanks! Appreciate your comment!

[@erikaszekely3315]

You are a true inspiration! Keep up the good work! God bless you!

[@W15Garage]

@@erikaszekely3315 thanks! Appreciate it!!

[@OlgaSzekely]

ÜGYES 🥰 nagyon jó munkát végeztél

[@W15Garage]

@@OlgaSzekely koszi😊!

[@PaulGuiry]

Well done!

[@W15Garage]

@@PaulGuiry thanks for watching!!

[@adrianwormald5652]

Well done, your'e the man !!

[@W15Garage]

@@adrianwormald5652 thanks for watching! Appreciate it!

[@cosminptk]

Faina treaba , te urmaresc de o vreme , jos cu palaria 😀

[@W15Garage]

🙏🙏🙏Respect

[@allen5976]

Delighted for you, well done. I'm almost ready to fit a water damaged engine in my vauxhall vivaro van after a full rebuild also, wish me luck I have the same result 🙏

[@W15Garage]

Thanks for watching, appreciate it! Good luck with your project! Nothing compares to the feeling when the car starts after a rebuild.😃 Let me know how it goes

[@TendaiNicholasMazengeza]

Well done thats a good job

[@W15Garage]

@@TendaiNicholasMazengeza thanks for watching! Appreciate it

[@alexandruit9416]

I like your work, u did a nice job

[@W15Garage]

@@alexandruit9416 many thanks appreciate it

[@davidviner4932]

Great video, keep them coming!

[@Mixy88]

Great Job!

[@W15Garage]

Thanks

[@Si-te7gz]

great job well done

[@W15Garage]

@@Si-te7gz thanks appreciate it!

[@Florin_Bolocan]

God bless you too 🤗 Thank you 🙏 for your Devotion to Thee and for calling His name in your videos !

[@W15Garage]

@@Florin_Bolocan Really appreciate your comment!🙏

[@sohailawan3572]

You have done great work

[@W15Garage]

@@sohailawan3572 many thanks! Appreciate it!

[@genesiscomputersystems5628]

well done :)

[@W15Garage]

@@genesiscomputersystems5628 thanks for watching!

[@duartegomes9455]

Great Job! It would be nice to see a small detail of the car before goes to sell 😉 What is the brand of rod bearings that you use? I notice one eBay a brand called “king” but I don’t know if they are any good…

[@W15Garage]

@@duartegomes9455 thanks. King bearings among experts is a well known brand, they have a wide range of racing bearings as well.

[@5Motive-hz5tp]

❤❤❤❤❤❤

[@W15Garage]

Thanks for watching

[@Fabio_T26]

Awsome work buddy...one question...i clean the hydraulic valve lifters, but i dont know how to reinstall them...empty or full of fresh oil? Thank you

[@W15Garage]

@@Fabio_T26 thanks for watching! it is recommended to install them empty, when lifters are filled with oil before installation, they can cause valve clearance issues and may prevent the valves from closing properly, potentially leading to starting difficulties or misfires, after installation the lifters will automatically fill with oil as the engine runs and builds pressure.

[@Fabio_T26]

@@W15Garage thanks to you for sharing your knowledge and passion, like all of us that love Cars like you! In all of your video you never prime engine before First start After rebuild...why you crank It "dry"? Assembly lube It Is not sufficient for bearings After all of those steps of cranking...

[@W15Garage]

It’s not always on camera, but I always crank the engine 3-5 times with the injectors disconnected after every timing chain job or engine rebuild to build up oil pressure. While assembly lube is beneficial, it does not replace oil pressure. The timing chain tensioners, lifters, bottom end, and the entire engine depend on sufficient oil pressure.

[@CarlAlbermarle]

Where are you connecting the oil pressure gauge ?

[@W15Garage]

@@CarlAlbermarle Where the oil pressure sensor would go

[@justysone100]

Hello sir.can i ask how is the engine doing until this day? How many kms has it done?

[@W15Garage]

@@justysone100 Hi, it’s performing spot-on. The oil pressure is good, and the power delivery is strong. I’ve clocked about 2,800-3,000 miles in total, and now I’m keeping it as a spare engine. In the meantime, I’m rebuilding another one, this time with ACL bearings. All the best!