BMW Stripped Head Bolt Repair

Description

[skylinefever]

I have been told that the Cadillac Northstar often has this problem. Some people prefer to get a replacement Northstar engine rather than go through this procedure.

Thanks for your videos, I am a huge fan.

[sKid]

John, question about piston rings in the M54 engine. I understand that the very common high oil consumption (1 quart/1000 miles) is due to wear in the oil rings, which were of a different type than the M52TU engine. What do you recommend to fix this problem? Aftermarket rings? M52TU oil rings? Thanks!

[MattsRageFitGarage]

And that is why BMW stands for Broke My Wallet!

[combat]

Love it. Do you sell fixtures like this for any other engines?  Or is this only something you do as a mobil service?

[pancholevario]

Where can i get a plate and everything to do the job?

[sKid]

What kind of tool are you using to drill the counter bore and where can I find one?

[bubster]

How do you find the exact hole spacing for the jig john? X-Y from the mill table using the  head?

[masterflight]

My son-in-law is just getting started with the auto machine shop business. How do you determine what to charge for this job?

[tk]

Are the timecerts strong enough for head torque over the long run?

I've got an extra set of cast spindles that I want to have the caliper bolt holes drilled, retapped, and timecerts installed because it's common for some idiot to over tighten the bolt and strip the hole.

[Renebimmer]

what size inserts did you used for this job?

[bubster]

At what degree of over heating does this wonderful job take place at? I hope a very high one lol

[tim-hill]

Why wouldn't you use a hand crank. Just curious.

[scottdarden]

looks like you are using a time sert on that i have been working on these cars for 8 years now. the only way to a headgasket job on aluminum blocked bmw's is time sert them or any other alloy block.

[Truthseaaker]

So it's not a steal insert. Your actually just rethreading and using larger head bolts?

[bigjim]

Hi, I learned to screw the tap in one turn and back out half a turn. Are you doing something different?

[chrisstephens]

Another good example of the 6Ps "perfect preparation prevents piss-poor performance" go the extra mile to do the job well, often quicker in the end too.

[BruceBoschek]

I've heard of this happening often on BMWs, but never on aluminium block Alfas. It may be that BMWs have higher compression ratios, or tend to overheat more. 

[wanabear]

Big job How does one manage to strip their head bolts lol.Gj man

[timramich]

Those are some shallow head bolt holes. No wonder why they strip.

[happy]

look at all that cheap black plastic.  BMW's are so poorly built now, they should call them "disposable motor works"!