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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 08-03-2010, 07:59 PM   #1
Blocked Out
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<<< My Blown Head >>> Epic pictures inside...

Well, last weekend I took my old car to the track to see what an old M54B30 can do and also to check if my headers did anything. It was Eurofest and me and my friends took our bimmers for a drive. Well everything went great for the first half of the day. I took the car drag racing instead of lapping just to see how fast I could go(I know BMW perform better in turns, but I had to go drag racing as I never done it before). All in all I did 7 passes but on my last one I "money shifted" , went straight to 2nd from 3rd at 6500rpm. instead of 4th.
My best time was 15.1 and it was my last pass . Not bad for a 3400lbs car.

my car was #4366
">

When I got to see the damage once the car was towed to my friends house I found out that ALL of my exhaust valves hit the pistons so hard that they left big dents in them.

Luckily I had a spare M54 head to work with. My advice to ANYONE who will ever have to replace the head or cams or do any engine work is to BE PATIENT, thats the key. Everything is absolutely straight forward, just be patient.

I was going to do a DIY on this but I thought, there are SO many incredibly good DIYs already out there that I wouldn't be able to beat them, so I just include the link of what I used:

http://ezflatscreen.com/carpages/m52headremoval.php

http://www.pelicanparts.com/bmw/tech...ft-removal.htm

Dont forget head gasket and head bolts can NOT be reused. You have to buy new ones.
Out of all the "special tools" all you need is the camshaft locking fixture(NOT necessary but will help a bunch ).

I dont blame the car or the "worn" tranny mounts like many others who have miss shifted, I only blame myself for not being focused.

Total damage cost me $350cad includes an oil change and a coolant flush and countless amounts of pizza and sandwiches that we ate.
Everything was done by myself and my best friend Vital in 3 days, as weren't rushing. I spent a GOOD amount of time cleaning up the head and the block for a good new seal, also had to polish the pistons as they were pretty smoked up.

Big Thanks to PEI330Ci for helping me out.

On to the pics
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Old one on the left, new one on the right.
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(the only picture I forgot to take was of the bent valves, holy moly were they bent)



Dont make same mistakes as I did, but otherwise have fun and take it to the track.

Key words: blown head gasket head piston cylinder stud bolts money shift
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Old 08-03-2010, 09:37 PM   #2
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ouch, glad u got the know how to get it going again
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Old 09-08-2010, 10:42 PM   #3
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Just thought I'd bump my own thread, maybe someone needs this info.
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Old 09-08-2010, 10:51 PM   #4
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Old 09-08-2010, 10:53 PM   #5
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What's so funny?
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Old 09-10-2010, 06:26 PM   #6
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probably laughing on how you bumped your own thread. I suggest adding tags with keywords such as headgasket, blown, etc... that way it'll be easier for people to find it, if you are concerned about people who need hte info finding it.
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Old 09-10-2010, 07:46 PM   #7
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So from the looks of it...You using ur Beat Up Pistons?

-TrippinBimmer
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Old 09-10-2010, 09:43 PM   #8
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So from the looks of it...You using ur Beat Up Pistons?

-TrippinBimmer
I was, car is sold now.

I deburred the marks and polished the pistons, car ran better then before after I put it all together.

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probably laughing on how you bumped your own thread. I suggest adding tags with keywords such as headgasket, blown, etc... that way it'll be easier for people to find it, if you are concerned about people who need hte info finding it.
Point well taken.
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Old 09-13-2010, 10:53 AM   #9
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So from the looks of it...You using ur Beat Up Pistons?

-TrippinBimmer
You'd be amazed how much abuse those pistons can take. Every piston I have has been hit at one time or another. The valves usually bend at 8600 rpm and if you make it to 10,500 rpm, the bottom end will go in spectacular fashion.
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Old 09-28-2010, 04:56 PM   #10
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i took the cams apart and i don't know how the gears on the exhaust side goes
any one please help pictures will help even better more..
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Old 09-28-2010, 05:16 PM   #11
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i took the cams apart and i don't know how the gears on the exhaust side goes
any one please help pictures will help even better more..
You're in trouble. There are special alignment tools required to re-assemble the VANOS/cams.
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Old 09-29-2010, 12:39 AM   #12
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i took the cams apart and i don't know how the gears on the exhaust side goes
any one please help pictures will help even better more..
I believe it goes like this: spacer, sprocket, spring plate, impulse wheel


But Please read the links I posted !!!
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Originally Posted by PEI330Ci View Post
You're in trouble. There are special alignment tools required to re-assemble the VANOS/cams.
I did my cam install along with vanos and the sprockets WITHOUT ANY SPECIAL TOOLS.

HOW? > By following this incredible DIY
http://ezflatscreen.com/carpages/m52headremoval.php

http://www.pelicanparts.com/bmw/tech...ft-removal.htm

In order to set the cams to TDC (top dead center) ALL you need is a 90 degree square, place it against the far end on the cam (the square end), making sure the 2 dots are facing up (while the motor is at TDC with a TDC pin, so it doesnt move anywhere) and then align it. Try to eyeball it as close as possible. The square should be placed so you are squaring the end of the camshaft against the surface of the head. When you think its good, tighten everything and install the VANOS (but only with 2 bots on far ends) then turn the motor clockwise 2 FULL rotations and check if the cams are still square, if yes then its good to go, if not redo it.

More info can be had from the links I posted.


I will make a DIY in the following week on "How To Install And Remove Camshafts Without Any Special Tools", I just need to find some time, but I promise it will be delivered.
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Old 10-08-2010, 06:12 PM   #13
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i took the cams apart and i don't know how the gears on the exhaust side goes
any one please help pictures will help even better more..
If you are asking that question, do yourself a favor and bring your car to a shop that knows what they are doing. Dont try and bs it together and run the car. Bring it to a shop.
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Old 10-20-2010, 10:10 PM   #14
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I will make a DIY in the following week on "How To Install And Remove Camshafts Without Any Special Tools", I just need to find some time, but I promise it will be delivered.
Delivered.

http://forum.e46fanatics.com/showthr...3#post12372713
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