MINI Cooper N12/N16 Cylinder Head Assembly Part 1

[@richmr2174]

Hi, thank you for your video! Used it the past couple of months when the expansion plug in my son's base R56 came out and made an awful mess of everything. Just got the head reassembled today and will be getting the car running in the next week or so (hopefully). And as one retired AF to another (you've got the vibe.. and the shirt): Aim High.

[@superk4562]

Glad to be of help! So this was your first R56 cylinder head rebuild? Don't forget to reset your adaptations and pre lube the engine before starting.

[@richmr2174]

@@superk4562 I've checked the Bentley manual and googled about pre-lube endlessly. The Bentley manual for changing out the oil pump just says fill with oil and go. What do you recommend?

[@superk4562]

N12 or n16 engine?

[@richmr2174]

@@superk4562 N12

[@superk4562]

In that case, you disable the fuel (pull fuse 46) and ignition, and crank the engine.

[@AutomotiveMobileTechnician2022]

Awesome video I didn't know how to use the tool. Thank You for the great instruction on how to use the tool when installing valve pressure springs on a mini N16.

[@superk4562]

@@AutomotiveMobileTechnician2022 glad to be of help.

[@mickeymini9522]

Alongside ensuring the vacuum pump bore aligned, it is also important to ensure that the eccentric shaft sender unit bore is aligned as well. Aligning the vacuum pump bore will, in most cases, ensure the eccentric shaft bore is also aligned. Both can leak and quite often do after a rebuild where the bearing bracket has been removed and the procedure for realignment hasn't been followed.

[@superk4562]

Excellent point; thanks for adding that.

[@lyt_w8t]

Thanks so much, I have been searching for the Torque spec that you mentioned at 14:30 ! Cheers

[@superk4562]

Glad to be of help.

[@CRookedGriNN]

quick question... why put the eccentric shaft at minimal lift? I am rebuilding a head now however this part worries me.

[@superk4562]

@@CRookedGriNN #1 reason, that is what the BMW technical manual says to do. After you put the head back on, make sure to clear all adaptations. This includes VANOS, valve lift, and fuel / air ratio. As soon as you power up the DME the first time, it will automacally run the eccentric shaft motor through a cycle to verify closed loop control.

[@marvincurry7757]

hi great job, what's the name of that tool of a amazon that you mention

[@superk4562]

That is the Vanos spring compressor. There's a link to it in the description.

[@emascarri1]

Hi, thanks for this video, it clarified a few steps that are kinda taken for granted on the manual. Just two questions: 1- did you pre-tension the exhaust camshaft when disassembling too? 2- you mentioned in a comment that N engines tend to drop valve seats after valve job. What does it mean exactly? Risk of major failure? Thanks!

[@superk4562]

The tech manual doesn't call for pre-tensioning of the exhaust camshaft during removal, so no. I can't post pictures here; run a web search for valve seats and you'll get plenty of images. If any valve seat drops (4 per cylinder) you'll be running on 3 cylinders, so yes, major damage. And there is the possibility of the seat breaking into multiple pieces (I've seen it), causing massive damage to the piston, cylinder head, and cylinder.

[@emascarri1]

@superk4562 Thank you!

[@bernardwarr4187]

Many people using these in motorsport? High power, light and compact motor? Sprit or drag racing etc?

[@superk4562]

Not sure what you're trying to say.

[@MichaelGibbs]

Great video and i am following it when i get the head off my N12. Do you have a link for the Valve tool used to get the Valve springs out and back in? I am to many variations and seem way to cheap to be right.

[@superk4562]

It's in the description.

[@MichaelGibbs]

@@superk4562 this Vanos compression tool will do the springs for the valves also?

[@superk4562]

@@MichaelGibbs No. That's another special tool, but the machine shop will have that.

[@MichaelGibbs]

@@superk4562 I’m doing this myself. I will research some more to find one.

[@superk4562]

@@MichaelGibbs Don't!!! If you've got the head off, you'll want to install the deepee SBI valve seats. N Series engines tend to drop valve seats after valve work or if the engine is over heated.

[@munierbuhardien3993]

great video , do you have any part number for special tools required

[@superk4562]

It's in the description.

[@likezdislike]

Hi. What are the differences on n12 and n16 engine?

[@superk4562]

On the cylinder head, the only difference is the N16 has a plug where the oil pressure switch is located on the N12.

[@fredytesenvitz3663]

Hallo das video war klasse werde bei meinem Mini one r56 n12 1.4 von 2009 die ventilschaftdichtung machen aber im eingebauten zustand mit welchen Nm werden die nockenwellen angezogen gruß Fredy

[@superk4562]

Tighten camshaft cap bolts to 10 Nm.

[@fredytesenvitz3663]

@@superk4562 Danke

[@superk4562]

@@fredytesenvitz3663 Bitte. Geben Sie den Leuten in Spangdahlem mein Bestes.

[@mobileservicesfdda514]

Hello, your video is very educational, I would like to know where to find the complete specifications (torques) for that cylinder heard, I have an R60 with an N18 engine. Thank you very much for the information.

[@superk4562]

I had to purchase a subscription to www.bmwtis.com/#/home.

[@bqrsolutions6220]

Does this help? drive.google.com/file/d/1HF1TsN7cY1RuNL27yl8wqdHwYOuIYTG9/view?usp=sharing

[@ananias-]

Good content but bad camera angle 😠

[@superk4562]

Yep ... working solo as the mechanic & cameraman.

[@ananias-]

I feel you, but still great detail info! Thank you!!

[@hamzaamar8925]

I didn't see anything. Adjust the camera point, please

[@KoryRude]

Preload on lifters required during cam assembly...lifter.likely may pump up without pressure...risking clearence Security Breach.

[@machinemanbaltimore]

I'd never buy anything German just because they overcomplicate things but this is good info for when you have to work on these for the suckers........oops, I mean people that own them.

[@superk4562]

It's French. motor-car.net/bmw-engine/item/16082-prince-engine

[@machinemanbaltimore]

@@superk4562 Oh my.

[@Clicksystems]

Cylinder head is German, was engineered by BMW because of their Vanos and Valvetronic technology. Block is french.

[@mehdidzd5573]

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