HOW TO DISASSEMBLE AN M30 CYLINDER HEAD
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- Опубликовано: 2 июл 2022
- Today we dive into disassembling an M30 cylinder head out of an E28 535i. We dove into this particular head because the unit that was previously installed in our E12 has seen better days. One or more valves were bent due to improper engine timing so luckily we had an extra late style head from an E28 that could be used! The only thing different from the two head were the distributor style so the old cam must be used. If you are experienced in disassembling M20 cylinder heads then the M30 should be no problem. There are slight differences but very much the same throughout.
Tools used:
Valve spring compressor
www.ebay.com/itm/154099549282...
Valve seal puller
www.ebay.com/itm/184479349629...
Thanks for watching!
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A fresh video about working on M30B35... the internet is healing again!
We actually want to do another one! Thanks for watching and the comment! 🙏
Took me about a day to learn the valve train, watched a couple of other videos but I managed to do it without taking the cam sprocket plate off I just turned the camshaft as needed and used the 2 open holes on both sides to remove the rocker arm shafts and yes you have to be careful I almost got one stuck trying to hammer them out/in but it would of been easier to do it the way he did it in the video by removing the nut and the plate 🤷🏽♂️😅
Definitely more than one way to do it! Glad you figured it out and hopefully that valve train runs beautifully in your car 😊🙌
@@superbimmerbros
Thks again yeah it sounds a lot better after swapping the lifters around during the process lol bc when I first got the car it was tapping back, come to find out one of the lifters was really wore but after mixing them around on the rebuild you can’t even tell anymore now just that normal old rocker arm valve train symphony were use to lol.
Awesome how to vid, thanks for taking the time to makes this
You're very welcome! Thanks for watching 🙏 Let us know if there is anything else you want to see covered in a future vid 👍
@@superbimmerbros I'm about to attempt to restore e28 535is that has a botched m30b35 swap so I'm sure I'll have some ideas for you guys in the future 😄
@@whiskeyactual. Sounds good! Please reach out whenever and good luck! gotta love bringing these Big 6s back to life
great video, i found it easy to turn and pull the rocker shaft with the allen screw on the end of the rocker shafts, just worked it back and forth with a ratchet and they pull right out. give it a shot if you ever disassemble another!
Kyle! Thanks so much for the tip! We will definitely try that next time. Thank you so much for the comment and we have to link up again soon! 🙏
Can someone elaborate on this about using the allen screw and a ratchet. Curious to how this would work.
@@krisjardine5111 it's all about friction, or more accurately stiction, which as per Google is the friction which tends to prevent stationary surfaces from being set in motion.
when you are turning the hex you can spin the rocker shaft making it slide in and out much more easily as well as putting enough load on the Allen you can pull without it just falling out.
my favorite channel....keep it up bro..!
My brother and I appreciate you! Thank you for the support 🙏🙏
it's a good video. Thank you guys.
We're happy you enjoyed it! 🙏
@@superbimmerbros do you have video how to replace the radiator support on 733i?
Articulate guy, easy to listen to.👍
A hammer gun/drill with a 1/2” drill bit makes quick painless work. Lock it in hammer mode not drill of course, my set up is for sds bits but would be even easier with a regular chuck if they sell a hammer gun like that. You could also make an adapter/sleeve for your drive the vibration it sends is what’s important.
I have to do this in my E9 M30B30 nice to see, the engine does not run for 15 years and is the Match number car 1974 👊 I have to rescue.
Anderson that's awesome! Those carb m30s are truly a work of art and sound incredible when tuned right. We wish you the very best of luck and hope to see and hear it. Send a video when you're done! 🙌🙌
Its a Csi.. No Carbs! Now i ll swap with another injection, do you have any suggestion?
Nice job. Rare to see a video of an m30 being diss-assembled. Believe me I searched. I'm in the middle of the same project and found a head shop (insert joke here) that has experience with BMW and the only wanted $450 for the refurbishment and resurface. Was a no brainer for me hand it off. Got it back last week, looks fantastic. Waiting on parts from Europe. I have the old style cam/distributor with the keyed gear to the distributor. I'm worried about ignition timing when putting it back together. Any tips on getting it close before attempting my first start?
Roy thank you very much for the comment! 🙏 A couple of community members asked us to make a video and after researching any related videos we were seriously surprised the lack of videos online for it! Hopefully it helps anyone that needs a little info. We can definitely give you some pointers or even make another upload for the timing if that helps! We were wondering the same thing because, again, hardly any info on timing either. We will be getting back to you shortly Roy thanks for hanging tight 🙌
Hi my brother i m a m30 owner 635csi from south Africa i swaped my engine with an m30 from e34 my problem is oil filter housing its not pumping oil i can see the difference on the gasket of the housing in short it doesn't pump oil
Hello brother! We have had the same issue before, we cut a new gasket that resembles the housing to ensure oil pressure makes its way past the filter. Please let us know if we can offer any more help!
If I messed up and didn't label the rocker arm shafts how do I determine which is which? There are two long and two short and I get what your saying in the video with the threaded ends out but as far as the head bolts if you spin the rod it gets confusing. I see in the parts list each has a different part number so that means all 4 are unique??
Hey Kris! Thanks for reaching out! Yes all four are unique and should not be mixed up. If you go to realoem.com and input your vin it will notate all the part number and orientation but in short, the shafts receive oil via the head through passages that line up with the shafts as well as the rocker shaft retaining rings and springs will line up with the rocker and cam shaft to position it accordingly.
Best way to figure out the orientation is to set the shafts on top of the head and visually line up the oil feed holes where the rockers go and line those up with the cam lobe. Once you identify the pattern it will be a little more obvious as to which shaft goes where.
If you have any more trouble please reach out via Instagram or email and we can chat some more! 🙏
I have an E28 on a beloved 535i with 400,000+ miles. The head gasket went. What was I thinking. Should I replace the timing chain as a precautionary and deglaze the cylinder wall? It has been Bullett Proof till the fatal coolant digestion.
Hey John! Thanks for the comment and question. And that's a big YES. The more that you can do to refresh, the better. As long as you get the head skimmed by your favorite machinist you should be good for another lifetime haha. How was the compression before blowing? Might be worth doing a rebuild if you have the time and budget!
Great video! Can you replace the valve stem seal without disassembling the head?
Hey Marc! Thank you for the comment! If you are referring to removing the seal with the head still in the car then we will start by saying that we don't recommend doing this but if you would like to tackle it this way you will have to remove the retaining clips for the rockers and try and move them out of the way and make sure the piston is top dead center for the seals that you are trying to replace otherwise you will drop the valve in the combustion chamber. Once you remove the springs you should be able to replace them.
If you are dead set on doing it this way we have to say that it is not worth the hassle and potential of damaging the head or dropping valves in the combustion chamber.
We strongly recommend removing the head and giving it a full refresh even if it just seals, rocker plugs and cam seal/orings. Its also well worth giving the valves a once over and lap job to ensure you have good sealing to maximize that power 👍
Hopefully gonna swap my 3.5 cam into my 3.2 engine..is it possible??they look the same but I expect more lift on the 3.5..also the 3.5 cam rod doesn't have the Allen ends,the 3.2 shafts did..guessing they knock out like the 3.2..yes I'll check piston valve clearance n pray that's OK just be a hotter cam install..
Yes it's possible! Most if not all m30 heads are interchangeable except the early cams that use the distributor shaft. First fives has an excellent write up on the differences in cams and heads that was very useful to us when doing these swaps at home!
www.firstfives.org/faq/cylinder_head/cylinder_head_faq.htm
Thanks.Email to him wouldn't work..but I'm going along n have both cams out..I'm just worried about cam valve piston interference issues..I just got my gasket kit and new head bolts so I'm still in the fixing process..thanks for any help.
Have a 1986 735i (E23) with a worn peal lobe Camshaft. Can you remove the Camshaft out with engine still in car?
And do you have or know where I can buy a Camshaft or what other model part is compatible with E23's Camshaft?
Hello! Thanks for the comment. We might have a b34 camshaft in our inventory! Send us an email at superbimmerbros@gmail.com and we will look for you and quote you 🙌 i don't believe it is possible to do the removal while the head is on the car however we have never done this so we can't speak for everyone. It is better to have it removed to at least refresh the stem seals and maybe cut the seats 😊
hello Super bimmer Bros . . ! i live in new Mexico I can't find a People like you to give a new live of a e28 1983 533i Do you have a recommendation can you work in this motor / or do you have person who live in New Mexico Still running but has a sound when it goes 2000 RPM after goes OK as a 40 years car
Hey Aaron! Hope all is well! We can definitely help you out any way we can and hopefully get your E28 working properly. Reach out to us at superbimmerbros@gmail.com so we can exchange information and get the conversation started. Thank you for reaching out 🙏
The Iron Maiden would be helpful here
Hey ken! Could you enlighten us on the tool? All we see in a Google search are torture devices hahaha
@@superbimmerbros it’s a tool you use to be able to buy or build. Basically the tool allows you to press on all the rockers at once so you can easily slide the cam out. A must for any BMW shop or anyone who deals with M30s often
@@superbimmerbros there’s a video on RUclips. Here’s the link ruclips.net/video/ZAgpvpqtcy8/видео.html
I'm swapping my 733i head for a 533i, any issues that you know of doing that,both are the same style motor.
Hey bill! You should be good to go on that swap as they should be using the same engine variant so long as it hasn't been swapped without you knowing but even then you shouldnt have any issues unless it is using a head from a e12 or something that has a different chamber shape. Best of luck bill let us know how it goes!
@superbimmerbros thank you..I sure will so far its looking good.and thanks
Im trying to remove the rockershaft, but it keeps spinning when I'm trying to remove the plug from the back end with an impact.. I even have headbolts on place but it just rolls over them. What should I do to get the plug out? The front end plug detached easily..
Uh oh! Sounds like its on there pretty tight. It typically isn't a corrosion issue rather than a stripping issue however try a little heat first before hitting it with the impact. If that STILL doesn't work, spray the shaft down with some brake cleaner to remove the oil and cover the shaft with some clean thick rags, now, using a pair of standard vice grips grab a hold of the shaft with just enough force to grip it but not too much that it spins and scores the shaft. Be very delicate. This tends to work for us but please do it at your own risk! We hope this helps 🙏
@@superbimmerbros Thanks. I thought about the vice grips tactic too but was too afraid that i would break it so I had to ask. Ill try this evening where Im getting with it👍🏼
@@waltsuwaltsu7965 how’d it work out? Mine did the same
@@bobsagit10 It worked out well, used only the vice grip technique👌🏼
Question, where is the ticking in these m30 heads?
Hey thanks for the question! The tapping comes from the space/clearance between the top of the valve and the adjustable eccentric.
If the ticking persists after a valve adjustment then there is excessive wear on the top of the valves caused by the eccentric. You will have to either service the head or adjust spacing between the camshaft and rocker but we don't recommend this approach.
Be advised that light ticking is normal and if you're not used to listening to these tappet style engines it may sound odd as hydraulic lifters tend to make little to no noise compared to the m30 and m20
That helped a lot thank you
I know the ticking is normal but it’s getting a little to loud so my next approach will be a valve adjustment and thicker oil
Loved the video btw might be the most detailed video I’ve seen on engine
on this engine
You're very welcome and we hope to help more in the future! We have definitely had our fair share of frustrating ticking problems haha! Have a great day and best of luck with your chariot 🙌
I collect heads from girls and bmw-s too. Also I need a job, blow and working too :D
😂😂👍
helo friend, Iam from Colombia south america, I see your videos..Iam assemble a head of 630 CS carburated model 77. i wish you can help me on torque zises...the calibration of yhe valves, an torque off the head...an otherwise if you have a video of the assembly of the same head you can redirect me on how to obtain...I really appreciate your help....thanks...
From Maine, I would love this info too. You have a m30 tear down and a m20 rebuild.
Please help