Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 / E61 (2004 - 2010)

E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 09-29-2015, 03:42 PM
andymax andymax is offline
Officially Welcomed to the 'Fest
Location: North of Pittsburgh
 
Join Date: Feb 2013
Posts: 187
Mein Auto: 08 535xi
Fuel Induction vs Walnut blast...anyone tried?

OK, so I'm fairly convinced I need my intake cleaned...high miles, plus symptoms indicate so. I am aware of the walnut blast process. In trying to locate a place to do the walnut blasting, I got into a discussion with a VERY well respected Indy (in biz 40 years, impeccable reputation). They said they were very well aware of walnut blasting and why its necessary...but that modern induction treatment is more effective because it cleans everything, vs just the valves themselves, and that they've had tremendous success with it.

The argument is that the treatment is administered via the air intake, and as such touches every surface of the intake system, not just the valves and ports.

Cost is a motivator....$150 vs the $400-500 for Walnut blasting.

Has anyone had any experience/success/failure with this versus walnut blast?
Reply With Quote
Advertisement
  #2  
Old 09-29-2015, 08:09 PM
kaane kaane is offline
Officially Welcomed to the 'Fest
Location: Dallas
 
Join Date: Aug 2015
Posts: 179
Mein Auto: 2008 535i
No chance of any induction treatment cleaning the deposits on the valves. I just did the walnut blast on my engine by myself and the deposits are soo hard and so caked on that no amount of chemicals will break it down. Only way to do it is a combination of harsh chemicals and hard core scraping or walnut blasting.

There is not a single documented case of any induction treatment breaking down those kind of deposits, not one picture of before and after that shows clean valves.

If you want to save money, make your own walnut blaster. I think I spent like $125-150 total on the parts to make mine. Granted I already had an Air Compressor.
Reply With Quote
  #3  
Old 09-30-2015, 07:14 AM
l1tech l1tech is offline
Officially Welcomed to the 'Fest
Location: AZ
 
Join Date: Oct 2011
Posts: 583
Mein Auto: 09 528i
^^^^^

What he said.
__________________
Reply With Quote
  #4  
Old 09-30-2015, 10:23 AM
RIHI RIHI is offline
Officially Welcomed to the 'Fest
Location: N. Cali
 
Join Date: Feb 2013
Posts: 194
Mein Auto: BMW
And where do the "dislodged particles" go? With walnut blasting, they are removed from within the cylinder head. If you run anything through the intake manifold, or air intake through the intake manifold, some valves will be open and some closed. This will allow debris to go inside the combustion chamber. I am thinking they are assuming the engine will purge it out the exhaust valves?
Reply With Quote
  #5  
Old 09-30-2015, 10:51 AM
JoeSixspeed JoeSixspeed is online now
Registered User
Location: CA
 
Join Date: Jun 2011
Posts: 77
Mein Auto: none
Does the following make sense:
Given that the cost is about 1/3, one can perform induction treatment more frequently (say x3). From the cost perspective pretty much break even, but the carbon buildup won't be as severe.
Reply With Quote
  #6  
Old 09-30-2015, 11:13 AM
kaane kaane is offline
Officially Welcomed to the 'Fest
Location: Dallas
 
Join Date: Aug 2015
Posts: 179
Mein Auto: 2008 535i
Maybe if you soaked the valves for like 24 hours in aircraft paint stripper or something even stronger you could maybe dissolve some of that stuff, but i doubt it. All the intake treatments are useless for Direct Injection motor carbon build up. They maybe clean up some oil deposits in the intake tract, but that's about it.
Reply With Quote
  #7  
Old 09-30-2015, 11:13 AM
impac4000 impac4000 is offline
Officially Welcomed to the 'Fest
Location: Chicago
 
Join Date: Mar 2006
Posts: 389
Mein Auto: 2008 BMW 535i
I just stick with Walnut Blasting every 25k or so first time i did it at 35k i think it was bad than at 61k and it was as bad than at 80k and same very bad but it really helps doing walnut blast
Check out my pic after only 19k after my last blast
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	95
Size:	54.1 KB
ID:	531755  
__________________
Exterior -- Full Umnitza Bodykit, 19" F10 wheels, rear roof spoiler, M5 trunk spoiler, H&R Sport Springs, BMS 10mm front and 15mm rear spacers.
Engine-- FBO, JB4, MHD BackEnd Flash
Reply With Quote
  #8  
Old 09-30-2015, 04:36 PM
aber57 aber57 is offline
Officially Welcomed to the 'Fest
Location: Ponder texas
 
Join Date: Feb 2014
Posts: 681
Mein Auto: 2007 550i 6MT
Catalytic converter and oxygen sensor replacements are very common after chemical treatments to clean intake.
Reply With Quote
  #9  
Old 10-02-2015, 11:33 AM
andymax andymax is offline
Officially Welcomed to the 'Fest
Location: North of Pittsburgh
 
Join Date: Feb 2013
Posts: 187
Mein Auto: 08 535xi
Quote:
Originally Posted by aber57 View Post
Catalytic converter and oxygen sensor replacements are very common after chemical treatments to clean intake.
THAT is a really really good point....


I'm pretty resolved to getting the walnut blasting done...now to find someone to do it for a reasonable cost...
Reply With Quote
  #10  
Old 10-02-2015, 01:06 PM
Ninja535i Ninja535i is offline
Officially Welcomed to the 'Fest
Location: Spokane wa
 
Join Date: Sep 2015
Posts: 118
Mein Auto: 2009 bmw 535i
I tried to find some one to do walnut blasting for me but I couldn't find any one to do it in my area .
Reply With Quote
  #11  
Old 10-03-2015, 01:02 AM
BMW technician BMW technician is offline
Officially Welcomed to the 'Fest
Location: Los Angeles
 
Join Date: Sep 2015
Posts: 133
Mein Auto: I3
As a BMW technician,,,,save your money and do the walnut she'll blast,,,,,the induction flush doesn't do a dam thing,,,,it may gum up the deposits but it won't clean the valves,,,,,it'll never said what motor we are dealing with,,,,,I'm assuming a 6 cylinder N54 or N55,,,,you can remove the intake manifold if you like a challenge and soak the intake valves with sea foam,,,then pick all the carbon off the intake valves,,,check out pics at ,bmwtechnician
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 / E61 (2004 - 2010)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 11:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms