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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Dec-14-2014, 06:13:43 AM   #1
androofoo
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Default Beisan VANOS Rebuild at Lang Racing Development

My car started to idle very rough, run rich, and sometimes randomly went into limp mode while driving. It was diagnosed as a faulty VANOS on the exhaust side so I thought it was time to do the full VANOS rebuild using the Beisan Systems parts. I took it to Andrew at Lang Racing Development here in Irvine, CA. I took some photos of the rebuild. I get the car back tomorrow and I am happy to finally get this done! Back to the track soon hopefully!

More photos at http://thebuildjournal.com/shops/bei...4-lang-racing/

Valve cover open and VANOS unit out.


New oil pump disc with re-drilled holes.


Both my exhaust hub tabs were intact at 145k miles!


All intake sprocket sleeve bolts were intact and snug as well!


VANOS solenoid was bad.


New VANOS solenoid rebuilt by Beisan!


Anti-rattle kit installed.


Broken chain guide.
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Old Sun, Dec-14-2014, 06:52:15 AM   #2
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

This makes me want to get mine done. I hope you got your front bumper problem resolved.
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Old Sun, Dec-14-2014, 08:48:06 AM   #3
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Nice. Andrew is a good guy and work great.
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Old Sun, Dec-14-2014, 08:51:38 AM   #4
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Love the high quality pictures.

Does the rebuilt solenoid from Beisan differ from a stock replacement solenoid? Does it have any improvements to stave off future failures?
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Old Sun, Dec-14-2014, 02:49:11 PM   #5
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

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Originally Posted by Tinnit View Post
Love the high quality pictures.

Does the rebuilt solenoid from Beisan differ from a stock replacement solenoid? Does it have any improvements to stave off future failures?
It is different, but I can't remember how. i think the stock one is prone to having the solder breaking or cracking which is addressed on the Beisan version. I am sure someone will chime in with better information than mine.

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Old Sun, Dec-14-2014, 07:11:01 PM   #6
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Quote:
Originally Posted by DirtBag335 View Post
This makes me want to get mine done. I hope you got your front bumper problem resolved.
No it's still the same, but it's on there pretty good!

Quote:
Originally Posted by Tinnit View Post
Love the high quality pictures.

Does the rebuilt solenoid from Beisan differ from a stock replacement solenoid? Does it have any improvements to stave off future failures?
How Raj explains, there are a couple of issues with the solenoid pack.

Solder joints crack due to mechanical vibration or weak solder joints. Depending on how the rebuilt packs are soldered, it may strengthen the joint reducing risk of cracking so a well soldered connection should improve life.

Solenoid valve sticking failure is due to sludge buildup in the valve piston cylinders. To be honest, not sure what this is.

Solenoid sealing plate rings flatten and crack due to temperature overexposure allowing oil to leak through. The old Buna o-rings can withstand 212F, however the Beisan-supplied Viton o-rings withstand 400F. New o-rings should decrease the chances of oil seepage.

I would say the Beisan solenoid packs lessen the risk of future failures.
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Old Sun, Dec-14-2014, 07:15:12 PM   #7
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Thanks for the post and pics.

For the broken plastic chain guide, I wonder where the broken-off plastic piece went.
Were you able to retrieve that piece?
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Old Sun, Dec-14-2014, 07:52:40 PM   #8
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Is the average DIYer able to re-solder the problematic joints in the solenoid pack? Doesn't sound difficult in concept but I'll let Raj chime in if he can.
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Old Sun, Dec-14-2014, 07:56:59 PM   #9
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Beisan is the best. Raj does a huge service for the E46 community and he is a pleasure to deal with - a natural teacher and a person of great patience for dealing with the DIY-challenged. BMW should thank him.
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Old Sun, Dec-14-2014, 08:51:04 PM   #10
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Default Re: Beisan VANOS Rebuild at Lang Racing Development

Quote:
Originally Posted by bimmerfan08 View Post
Is the average DIYer able to re-solder the problematic joints in the solenoid pack? Doesn't sound difficult in concept but I'll let Raj chime in if he can.
you need the correct solder station to make the work easier.
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Discussing Beisan VANOS Rebuild at Lang Racing Development in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)