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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 Tue, Mar-13-2018, 08:35:44 PM   #1
schoonerm3
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Default Cleaning vanos unit , what's the best and safest method

I am doing a vanos overhaul in the next few weeks.
Im sure the face of it will be varnish stained and I will want to clean it. Probably over the top but I would like to.

Is vapour blasting the way forward or is ultrasonic the best. Or good old fashioned elbow grease and brake cleaner.
I am worried about giving it to someone incase they damage the roller needle bearings where the oil pump disc oscillates.

What have other done?
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Old Tue, Mar-13-2018, 08:37:20 PM   #2
Drewster
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Default Re: Cleaning vanos unit , what's the best and safest method

Just follow the procedures. Use a strong magnet and parts cleaner

If it still doesn't click when the magnet is applied, soak the *ucker in gasoline
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Old Tue, Mar-13-2018, 09:13:35 PM   #3
grannyknot
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Default Re: Cleaning vanos unit , what's the best and safest method

As said above, follow Raj's instructions, http://www.beisansystems.com/procedures/index.html
Brake cleaner and compressed air, don't vapour blast it, that will remove the protective anodizing and will corrode easily, there is also the danger of tiny particles of glass being left in the unit.
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Old Tue, Mar-13-2018, 09:16:09 PM   #4
schoonerm3
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Default Re: Cleaning vanos unit , what's the best and safest method

Sorry guys I should have made myself clearer.

I am referring to cleaning the face of the vanos unit itself , not the solenoid block.

The face is usually varnished and brown
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Old Tue, Mar-13-2018, 10:34:44 PM   #5
aznniche
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Default Re: Cleaning vanos unit , what's the best and safest method

use metal polish and a dremel if you want to make it shine like chrome.
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Old Tue, Mar-13-2018, 11:37:43 PM   #6
schoonerm3
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Default Re: Cleaning vanos unit , what's the best and safest method

Quote:
Originally Posted by aznniche View Post
use metal polish and a dremel if you want to make it shine like chrome.
That's for the outside.

Guys !

I want to clean the surface of the vanos that is exposed to the inner workings of the engine.

The vanos splined shafts attach to this side of the u it. The oil pump disc is located on this side of the unit.

It usually has brown and gunky residue .

Maybe my question wasn't clear
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Old Wed, Mar-14-2018, 12:04:21 AM   #7
grannyknot
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Default Re: Cleaning vanos unit , what's the best and safest method

Same answer, brake cleaner.
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Old Wed, Mar-14-2018, 12:22:11 AM   #8
J-ReaL
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Default Re: Cleaning vanos unit , what's the best and safest method

Haha my OCD leads me to these places sometimes...

But then I ask myself, can the inside of the engine witness and admire how clean this part is that I am about to reinstall back on?

Lol in a hundred miles that unrelenting residue and varmint of a varnish will be right back anyway
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Old Wed, Mar-14-2018, 03:23:31 AM   #9
GeorgeH
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Default Re: Cleaning vanos unit , what's the best and safest method

Ultrasonic cleaner
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Old Wed, Mar-14-2018, 04:48:12 AM   #10
bimmerdriver
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Default Re: Cleaning vanos unit , what's the best and safest method

I like things being clean as well, but it makes no difference if there is some residual varnish on the inside of the unit. Use brake cleaner to remove whatever will come off, then leave well alone.
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Discussing Cleaning vanos unit , what's the best and safest method 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)