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Faults, Fixes and DIY Please share your experience and knowledge with other members by contributing your own DIY, or by helping another member find the elusive fix!


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Old Tue, Apr-16-2019, 05:42:47 PM   #121
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Default Re: S54 Vanos Info Thread

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Originally Posted by m3az05 View Post
Sparks plugs out, same result. If I have to disassemble thatís fine, Iím just not sure how to go about it if Iím unable to time the crank


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I ran into the same issue when I did my vanoes and thought I damaged something. Get the VC off, rotate CCW half a turn or so and see if your able to go clockwise or loosen the hubs enough to set timing.
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Old Wed, Apr-17-2019, 01:29:23 AM   #122
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Default Re: S54 Vanos Info Thread

pictures of lobes?
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My track journal: http://www.m3forum.net/m3forum/showthread.php?t=509148
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Old Wed, Apr-17-2019, 01:32:48 AM   #123
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Default Re: S54 Vanos Info Thread

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pictures of lobes?




This is the position after rotating CCW until the pointer is lined up with the the O, but it wonít rotate anymore and will only rotate about 45 degrees CW



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Old Wed, Apr-17-2019, 01:36:43 AM   #124
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Default Re: S54 Vanos Info Thread

You're 1 full crank away from the cams being TDC.

The lobes should be pointing at each other.
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FLMS Half Cage, RaceTech 4009HR drivers seat, Schroth 6-Pt Harness, E.S.S. Fire System, AIM SOLO DL with ECU Harness, SmartyCam, Angle Aluminum with VAC dead pedal, Sparco Steering Wheel on MOMO hub, MCS Suspension, Hyperco 800F 900R springs, Hotchkis Front and Rear Sway bars, Vorshlag Camber Plates, Turner ARCA, AJ Hartman Front Splitter, BW V2 Wing, BW CF Rear Diffuser, APEX ARC-8 wheels, Brembo BBK Front, Carbon Fiber Roof, CF Headlight Blanks, Door Windows and Cards Delete, TMS rear and front subframe reinforcement, Zionsville Competition Cooler, BW Oil Cooler, Oil Diverter Valve, Motorsports Thermostat, Evolve CF Intake, Epic Stepped Headers, Turner Pulleys, BW 3.5" Race Exhaust, EPIC Alpha N Tune, Beisan Oil Disk and Vanos Seals, ZF 5MT, CAE Ultra Shifter

My track journal: http://www.m3forum.net/m3forum/showthread.php?t=509148
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Old Wed, Apr-17-2019, 01:44:05 AM   #125
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Default Re: S54 Vanos Info Thread

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You're 1 full crank away from the cams being TDC.

The lobes should be pointing at each other.


I know that, but it wonít crank all the way around, it stops a quarter of the way


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Old Wed, Apr-17-2019, 01:48:47 AM   #126
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Default Re: S54 Vanos Info Thread

If you can get the OIC mark on the damper to 30 degrees of CCW of the locking position you can remove the vanos, remove the spline shafts and hubs and safely rotate the cams to their TDC.

At 30 degrees CCW of TDC, the pistons are out of the way of all of the valves when you move the cam shafts.

Then rotate the engine CW and lock it into TDC position and then restart timing.

You should never try to tweak timing with vanos still connected. Bad stuff will happen.
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My track journal: http://www.m3forum.net/m3forum/showthread.php?t=509148
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Old Wed, Apr-17-2019, 06:14:23 AM   #127
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Default Re: S54 Vanos Info Thread

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Originally Posted by ThunderMoose View Post
If you can get the OIC mark on the damper to 30 degrees of CCW of the locking position you can remove the vanos, remove the spline shafts and hubs and safely rotate the cams to their TDC.

At 30 degrees CCW of TDC, the pistons are out of the way of all of the valves when you move the cam shafts.

Then rotate the engine CW and lock it into TDC position and then restart timing.

You should never try to tweak timing with vanos still connected. Bad stuff will happen.
Moose, I'm not sure I agree with last statement about not adjusting timing with vanos connected. That's exactly how you correct timing, you dont need to remove the vanos unit. Raj also included instructions at the bottom of his rattle procedure: http://beisansystems.com/procedures/..._procedure.htm

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Happy to help with VANOS or any other DIY job around NorCal. Have various specialty tools (VANOS, RTAB, engine bar, valve adjustment, tranny jack, ball joint separator, pilot bearing puller, tap&die kit, etc).
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Old Wed, Apr-17-2019, 01:21:23 PM   #128
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Default Re: S54 Vanos Info Thread

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Originally Posted by mrgizmo04 View Post
Moose, I'm not sure I agree with last statement about not adjusting timing with vanos connected. That's exactly how you correct timing, you dont need to remove the vanos unit. Raj also included instructions at the bottom of his rattle procedure: http://beisansystems.com/procedures/..._procedure.htm

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Fair point. I probably should have simply said it has risk, as you have to loosen hub bolts to adjust timing which requires you to rotate engine to get to all bolts. If you loosen in such a way that hub and sprocket are no longer mated you could have issues.

I personally prefer to remove hub bolts with vanos off and engine and cams at TDC position. And I like to retime engine from the very start.

IME if you time the engine properly and tighten down hub bolts properly you should not have to readjust. A lot of folks rotate their engine after vanos work and see that the pins may not slide into the holes when engine is at TDC and try to retweak timing. However, the cams may advance or retard with rotation.


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FLMS Half Cage, RaceTech 4009HR drivers seat, Schroth 6-Pt Harness, E.S.S. Fire System, AIM SOLO DL with ECU Harness, SmartyCam, Angle Aluminum with VAC dead pedal, Sparco Steering Wheel on MOMO hub, MCS Suspension, Hyperco 800F 900R springs, Hotchkis Front and Rear Sway bars, Vorshlag Camber Plates, Turner ARCA, AJ Hartman Front Splitter, BW V2 Wing, BW CF Rear Diffuser, APEX ARC-8 wheels, Brembo BBK Front, Carbon Fiber Roof, CF Headlight Blanks, Door Windows and Cards Delete, TMS rear and front subframe reinforcement, Zionsville Competition Cooler, BW Oil Cooler, Oil Diverter Valve, Motorsports Thermostat, Evolve CF Intake, Epic Stepped Headers, Turner Pulleys, BW 3.5" Race Exhaust, EPIC Alpha N Tune, Beisan Oil Disk and Vanos Seals, ZF 5MT, CAE Ultra Shifter

My track journal: http://www.m3forum.net/m3forum/showthread.php?t=509148
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Old Thu, Apr-18-2019, 01:44:17 AM   #129
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Default Re: S54 Vanos Info Thread

Agree with ThunderMoose. It looks like you have rotated the crank while not rotating the cam (not enough tension on hub bolts). So your cam is way out of time with your crank and you are hitting a valve. To get back to the correct positions I would try the following:
  1. I would remove the VANOS. You don't have to but you might as well get it out of the way and focus on getting cams/crank back into correct position.
  2. Confirm piston 1 is at TDC (or close)
  3. Don't force anything, if can't rotate crank, a valve is probably hitting a piston.
  4. Rotate crank from TDC counter clockwise ~30į-40į. This position is pistons clear, you can freely rotate cams without valves hitting pistons. See pic below, I have this position marked in silver on my harmonic balancer.
  5. If you can't reach this position because a valve is hitting you need to rotate the cam to get the valve closed. Loosen all hub bolts so you can rotate cams independent of crank (leap of faith here...)
  6. You can look at the cam lobes to figure out which valves are open. You can also drop a long screwdriver down the spark plug hole to figure out piston location (at TDC pistons 1 and 6 are up).
  7. Once you reach pistons clear position you can rotate cams with a wrench back to the correct positions, with timing holes up and cylinder 1 lobes pointed at each
  8. Once cams are in correct position, rotate crank clockwise back to TDC. No valves should hit.
  9. Follow beisan instructions to re-install VANOS and time engine.

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Last edited by robgill; Thu, Apr-18-2019 at 01:49:39 AM.
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Old Thu, Apr-18-2019, 03:22:25 AM   #130
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Default Re: S54 Vanos Info Thread

Yeah we've been communicating via PM, I told him he prob didnt tighten the hubs tight enough and most likely cams slipped, he will try to disassemble and move everything independently this weekend.

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All DIY: VANOS, WPC rod bearings, full SS (SS stepped V1 headers, catted S1, stock S2, SS sport), AFD E85 Proflex kit, Ohlins R&T/Hyperco 375f Swift 672r/GC street tops and camber plates, ST40 355 pfc08, 330 ZHP steering rack, diffsonline 4.1 diff with rem polish, E60 short shifter lever, AKG black diff bushings/subframe bushings, Rogue rtab, Sachs clutch/flywheel, rear main, Beyer driveshaft, valve adjustment, cooling refresh.

Happy to help with VANOS or any other DIY job around NorCal. Have various specialty tools (VANOS, RTAB, engine bar, valve adjustment, tranny jack, ball joint separator, pilot bearing puller, tap&die kit, etc).
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Discussing S54 Vanos Info Thread in the Faults, Fixes and DIY Forum - Please share your experience and knowledge with other members by contributing your own DIY, or by helping another member find the elusive fix! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)