E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > USA - Rockies / Midwest > Walnut blast - my experience and pics



Reply
 
Thread Tools Search this Thread
      08-29-2014, 05:53 PM   #1
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Walnut blast - my experience and pics

First: a shout out to Wes and JamesM3M5 who is a forum member. This post isn't a DIY, the DIY on bimmerhelp is plenty good enough. (Don't know if there is also an e90post DIY, but I found the other one first.)

I noticed about 10k miles ago that the car wasn't running as fast as it did when new and I had been getting "silent" limp modes (no codes thrown). After reading this thread http://www.e90post.com/forums/showthread.php?t=726481 I was motivated to do a walnut blast. Good thing I did. The "after" car is like driving the car new. Butt dyno says 40hp and I don't think I am exaggerating. The cleaning was tedious: walnut blast, soak with carb cleaner, scrub and now repeat about 3 times, now repeat for the other 5 cylinders! Cylinders 4, 5, and 6 were pretty bad, especially #5, where some of the sludge was 4mm thick. It drastically affected air flow.

You owe it to yourself to get this done if your car has 45k+ miles without a walnut intake cleaning!

The cool side of the N54 (with the black electronics hub - what the DIY calls the "evil box" - at bottom center):
Name:  n54_the_cool_side.jpg
Views: 3484
Size:  120.1 KB

Detail of the bottom of the intake manifold. I had a bitch of a time detaching the "evil box" (which is just an electrical hub of connections) from the manifold. (Edit: Be sure to detach this hub off the manifold before you take the manifold off the head!) You can see that I very mildly sanded the edges of the top of the lips on the two tabs so it won't be such a bitch to take the hub off it next time.
Name:  n54_intake_manifold_bottom.jpg
Views: 3316
Size:  30.7 KB

Throttle body, which I had to clean as well.
Name:  n54_throttle_body1.jpg
Views: 3384
Size:  71.4 KB

This is the actual top of the throttle body (after cleaning - sorry forgot to take pic of it dirty)
Name:  n54_throttle_body2.jpg
Views: 3359
Size:  68.0 KB

Cyl #1 intake
Name:  cyl1_dirty.jpg
Views: 3290
Size:  62.0 KB

Cyl #5 intake - friggin gross
Name:  cyl5_dirty.jpg
Views: 3289
Size:  54.0 KB

Cyle #4 with a couple blow-suck cycles, pretty clean but I gave it another blow suck.
Name:  cyl4_almost_clean.jpg
Views: 3346
Size:  47.5 KB

15 Amp switch from AutoZone with wire and alligator clips. I was too lazy to jack up the car because I don't think you can turn the crank bolt from top. Edit: If you have an oil cooler you can't because there are too many hoses in the way, if you don't have an oil cooler, you can. If you take off the electric fan and its shroud - which slides up, you can get to the crank from the bottom of the car. Having a lift would make it easy. Important: For those 6MT DIYers who are about to rock, don't forget to put tranny in neutral!
Name:  starter_switch.jpg
Views: 3281
Size:  74.9 KB

Broken vacuum adapter after 4 cylinders while wiggling it out (thankfully duct tape worked for the final 2 cylinders). Wes is sending me a new one though! Thanks man!
Name:  vacuum_adapter.jpg
Views: 3642
Size:  62.8 KB

One final note about the sand blaster kit: after getting the "40lb" pressurized sand blaster kit from Harbor Freight (i.e. the "red" media blaster kit), I found it was using waaaaay too much walnut media and I stopped using it and got the smaller "gray" portable kit that is mentioned in the original DIY link above and here: https://www.harborfreight.com/portab...kit-37025.html (kit also comes with a gun). The portable one works by pulling walnut media simply by pressure drop/bernoulli's principle of the pressurized air flow from your air compressor. I also used the "fine" walnut media which is also mentioned in the DIY.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________

Last edited by IN54NITY; 11-01-2018 at 02:16 PM.. Reason: Manual into neutral. Oil cooler note.
Appreciate 1
      08-29-2014, 06:13 PM   #2
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Ah, one other thing I did: Took the two MAP sensors (one in charge pipe, the other in the intake manifold) out and cleaned them with CRC Mass Air Flow sensor cleaner.
Attached Images
 
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________

Last edited by IN54NITY; 08-29-2014 at 06:18 PM..
Appreciate 0
      08-29-2014, 08:00 PM   #3
chepy24
Captain
chepy24's Avatar
27
Rep
780
Posts

Drives: 2009 alpine white 335i xdrive
Join Date: Nov 2013
Location: denver

iTrader: (0)

Awesome! I'd be willing to throw some cash your way to get this done lol I'm pretty sure my car needs it haha
Appreciate 0
      09-04-2014, 06:34 PM   #4
Evil///M
Professional Hitman
Evil///M's Avatar
United_States
125
Rep
990
Posts

Drives: M2C | Colorado Z71
Join Date: Feb 2011
Location: 602

iTrader: (12)

Garage List
Good info. I wish I knew more about how the blasting tool works.
Appreciate 0
      09-09-2014, 11:21 PM   #5
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Got a new replacement adaptor today free of charge (first one broke as I explained above) thanks to Wes. So I am willing to help other forum members. Here's the deal though: I don't want to do it on a hot car, and the job takes a ~long~ time, 4 hours. I'm willing to lend the kit out too, but if you break something, I want a new replacement for it, not $. PM me.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________
Appreciate 0
      09-09-2014, 11:27 PM   #6
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Just got the Burger OCC too, and I'm about to install it at the same time I replace the pre cat O2 sensors.

Anyone already have an OCC? If so, how much oil does it collect?
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________
Appreciate 0
      09-10-2014, 01:03 PM   #7
forza1976
Major General
forza1976's Avatar
United_States
331
Rep
5,043
Posts

Drives: 2018 M550 & M240
Join Date: Aug 2007
Location: Denver

iTrader: (13)

Wow, nice work Alex!
Appreciate 0
      09-10-2014, 06:12 PM   #8
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Quote:
Originally Posted by forza1976 View Post
Wow, nice work Alex!
Thanks! It's not very hard, just tedious. So to those who want to do it, PM me and you can do it in my garage - I have ~all~ the tools. (I will even help out [ a lot ], but you can do the scrubbing on your own damn car. ) Just bring your own walnut media (one 25lb box is plenty), shop rags (you are going to need some), carb cleaner (but you can use my CRC Mass Air Flow sensor cleaner), painter's tape and maybe it would be nice to bring a Rigid shop vac filter. You may want to bring new spark plugs too as I removing them anyways so I can more easily turn the crank and blowing out any (unlikely) walnut media that got into the cylinder. . I am not asking for any money! Just bring me a 12 pack of microbrew / nice bottle of wine (I'm a freakin' wine snob) and/or any other bribes.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________

Last edited by IN54NITY; 11-18-2014 at 06:51 PM.. Reason: Bring spark plugs too.
Appreciate 0
      09-18-2014, 05:18 PM   #9
raceyBMW
king of the hills
raceyBMW's Avatar
United_States
57
Rep
2,896
Posts

Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO

iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
Alex, I'm definitely taking you up on this some time. I'm sure mine are nasty.

My OCC catches quite a bit, though I am also running 16-18psi.


I also upgraded the valve on the back of the valve cover from RB
Appreciate 0
      09-19-2014, 10:27 AM   #10
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Com'on by! Thanks for the OCC pic.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________
Appreciate 0
      09-19-2014, 12:47 PM   #11
thaar
Second Lieutenant
20
Rep
204
Posts

Drives: 2009 335i x-drive MHD
Join Date: Apr 2012
Location: Centennial, CO

iTrader: (0)

I'm thinking my car needs this. It feels like it's become a pig over the last year or so - it could be I'm just used to the power, but I don't think that's it. Thanks for sharing your experience and the pics and offering up help. I may have to take you up on this generous offer this fall! Cheers!
Appreciate 0
      09-19-2014, 03:37 PM   #12
zeen
Private
4
Rep
54
Posts

Drives: 08 335i
Join Date: Dec 2013
Location: Clovis/Cannon

iTrader: (2)

How far are you from New Mexico? Clovis to be exact
Appreciate 0
      09-19-2014, 07:05 PM   #13
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
^ Wow. 494 miles, 7.75 hrs according to Google maps. You could make it a 'vacay'.

I'm in Louisville.

Thaar, just PM when you're ready.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________
Appreciate 0
      09-22-2014, 09:59 PM   #14
chepy24
Captain
chepy24's Avatar
27
Rep
780
Posts

Drives: 2009 alpine white 335i xdrive
Join Date: Nov 2013
Location: denver

iTrader: (0)

I'm willing to take you up on your offer my car is in need of it 70k don't think its been done once lol
Appreciate 0
      09-22-2014, 11:52 PM   #15
JJMEOW
Instagram: FAMOUSJADE
JJMEOW's Avatar
88
Rep
137
Posts

Drives: E350 4matic
Join Date: Jun 2012
Location: Michigan

iTrader: (0)

Quote:
Originally Posted by aleckzandr View Post
^ Wow. 494 miles, 7.75 hrs according to Google maps. You could make it a 'vacay'.

I'm in Louisville.

Thaar, just PM when you're ready.
Is this why you leave work every day at 3:00PM.... lol
__________________

MB E350 4 matic // BMW e92 335xi
Appreciate 0
      09-23-2014, 07:57 AM   #16
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Quote:
Originally Posted by JJMEOW View Post
Is this why you leave work every day at 3:00PM.... lol
And I'm not even a banker or lawyer.

Quote:
Originally Posted by chepy24 View Post
I'm willing to take you up on your offer my car is in need of it 70k don't think its been done once lol
Alright. This coming weekend isn't good, possibly next.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________
Appreciate 0
      09-25-2014, 03:11 PM   #17
ar design II
Captain
ar design II's Avatar
United_States
38
Rep
773
Posts

Drives: which one?
Join Date: Jan 2012
Location: Denver, CO

iTrader: (1)

Send a message via AIM to ar design II
Saw a few of you interested. We still offer this service for flate rate of $499
Appreciate 0
      09-29-2014, 10:34 PM   #18
Cacicgt7
Military Enforcer
0
Rep
93
Posts

Drives: 335i E90
Join Date: Jun 2013
Location: Broomfield, CO (Denver)

iTrader: (1)

You have a PM
__________________
Alpine White 2008 335i Dinan Stg II
USAF
Appreciate 0
      10-14-2014, 08:46 AM   #19
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Replaced pre-cat O2 sensors (pic below). Got a fault today for the after cat sensor. Aggggggh! Car is like taking care of nagging toddler.

If any one wants to borrow it when replacing their pre-cat O2 sensors: I fabricated a tool by cutting a notch (Dremel tool) out of a closed end 22mm wrench so that the wire just fits through (other end is open). It's such a tight fit that sometimes the open end doesn't work because the angle is just ever so slightly off.

Got mine here:
http://www.amazon.com/gp/product/B00...rch_detailpage

http://www.amazon.com/gp/product/B00...rch_detailpage
Attached Images
 
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________

Last edited by IN54NITY; 06-17-2015 at 11:03 AM.. Reason: #1) Dremel tool misspelling #2) Amazon links
Appreciate 0
      10-14-2014, 12:24 PM   #20
raceyBMW
king of the hills
raceyBMW's Avatar
United_States
57
Rep
2,896
Posts

Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO

iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
You need to get yourself a set of these for the next time

http://www.amazon.com/Steelman-55290.../dp/B00K7YZQDK
Appreciate 0
      10-14-2014, 12:27 PM   #21
IN54NITY
Major nutz
IN54NITY's Avatar
United_States
66
Rep
1,479
Posts

Drives: '09 n54 e92xi, 6mt, kw v3
Join Date: Sep 2009
Location: Colorado, USA

iTrader: (0)

Garage List
2009 335xi  [4.35]
Quote:
Originally Posted by raceyBMW View Post
You need to get yourself a set of these for the next time

http://www.amazon.com/Steelman-55290.../dp/B00K7YZQDK
You're killin' me.



I know I could have bought those, but I couldn't find them in time so I bought a cheap 22mm wrench so I could DIY while I DIY.
__________________
KWs - Vorshlags - APEX EC-7s - "My garage" has suspension install pictures.
_____________________
Appreciate 0
      10-14-2014, 03:31 PM   #22
raceyBMW
king of the hills
raceyBMW's Avatar
United_States
57
Rep
2,896
Posts

Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO

iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
That's real strange that you got a fault on the after cat O2s after replacing the others, did you ever unplug those ones?
Appreciate 0
Reply

Bookmarks

Tags
walnut blasting

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off



All times are GMT -5. The time now is 07:39 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST