Close

Results 1 to 6 of 6
  1. #1
    Join Date
    Aug 2016
    Posts
    236
    Rep Points
    699.0
    Mentioned
    8 Post(s)
    Rep Power
    7


    2 out of 2 members liked this post. Yes Reputation No

    How-To Walnut Blast/Carbon Clean Intake Valves

    I finally set aside some time to give my 335i the walnut blast it deserved at 140k miles. I want to share my process/results!

    Click here to enlarge

    Click here to enlarge

    Here are the supplies I used:


    Here are the steps I took to get to the valves...

    Step 1: https://bit.ly/2JvZ98O
    Step 2: https://bit.ly/2Yn6rQr
    Step 3: https://bit.ly/309uSCo
    Step 4: https://bit.ly/309komL

    Let's get started...

    Click here to enlarge

    Click here to enlarge

    Click here to enlarge

    Click here to enlarge

    Click here to enlarge

    Well, I think I figured out why the car couldn't eclipse 13's in the 1/4 mile! I couldn't believe what I found after removing the intake manifold!

    Click here to enlarge

    After loosening up some of the carbon with a pick...

    Click here to enlarge

    Click here to enlarge

    Then after one pass of walnut blasting...
    (see video at the bottom for a detailed explanation of how to do this part)

    Click here to enlarge

    Lots of walnuts and manual scrubbing later...

    Click here to enlarge

    I even cleaned up the intake manifold ports because those were caked with carbon as well. You can see the cleaned port on the left and the dirty port on the right.

    Click here to enlarge

    It was a lot of work, but totally necessary. If you want to watch my whole process with more of a DIY/How-To style, check out my YouTube video. It also has some more information and a drive at the end showing the power increase/restoration.


    I hope this helps other N54 enthusiasts!
    🔧 Check out my 750HP 135i build: my1series.com
    📷 Follow me on Instagram: instagram.com/jakespence
    🎬 Watch me on YouTube: youtube.com/jakespence135
    🌟 Support me on Patreon: patreon.com/jake_spence
    🏁 Shop BMW merchandise: bimmerstreet.com

  2. #2
    Join Date
    Dec 2009
    Posts
    2,190
    Rep Points
    1,625.6
    Mentioned
    14 Post(s)
    Rep Power
    17


    Yes Reputation No
    This is well done. Need to edit the formatting a bit but definitely front page worthy.

  3. #3
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    137,746
    Rep Points
    41,038.7
    Mentioned
    2418 Post(s)
    Rep Power
    411


    Yes Reputation No
    Promoted to front page with intro:

    It is well known that carbon buildup can become an issue on N54 motors. With cars getting up there in mileage and changing hands several times it is more important than ever to make sure carbon buildup is not having a negative effect on performance.

    This handy DIY (do it yourself) instructs you on how to go about doing a walnut blast and cleaning:

    Click here to enlarge

  4. #4
    Join Date
    Dec 2016
    Posts
    248
    Rep Points
    1,004.2
    Mentioned
    4 Post(s)
    Rep Power
    11


    Yes Reputation No
    Jake, I was curious, do you always use the gravity hopper blasting kit when you do these, or was it specifically for your budget build? I would think you'd have access to an air compressor and the harbor freight 20lb abrasive blaster is much better to use vs. the gravity hopper one. It's much more powerful as well, and not much more expensive. I didn't do any manual scrubbing on mine to get them spotless, plus each port took less than a minute of blasting.

  5. #5
    Join Date
    May 2013
    Location
    WildWest
    Posts
    456
    Rep Points
    1,176.6
    Mentioned
    28 Post(s)
    Rep Power
    12


    Yes Reputation No
    god bless it, that was longggggg over due for that poor car! good on you taking it away from a home of neglect!

  6. #6
    Join Date
    Aug 2016
    Posts
    236
    Rep Points
    699.0
    Mentioned
    8 Post(s)
    Rep Power
    7



    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Promoted to front page with intro.
    Sweet - thanks!

    Click here to enlarge Originally Posted by langsbr Click here to enlarge
    Jake, I was curious, do you always use the gravity hopper blasting kit when you do these, or was it specifically for your budget build? I would think you'd have access to an air compressor and the harbor freight 20lb abrasive blaster is much better to use vs. the gravity hopper one. It's much more powerful as well, and not much more expensive. I didn't do any manual scrubbing on mine to get them spotless, plus each port took less than a minute of blasting.
    I initially bought this kit to try it out and just haven't got around to upgrading it. I recently found out about the 20lb abrasive blaster kit and how much better it is. I'd recommend that for someone who might be doing this more than once for sure. If I do it again, I'll grab that kit to try next time.

    Click here to enlarge Originally Posted by 7plagues Click here to enlarge
    god bless it, that was longggggg over due for that poor car! good on you taking it away from a home of neglect!
    For sure! I'm excited to keep tearing into it.
    🔧 Check out my 750HP 135i build: my1series.com
    📷 Follow me on Instagram: instagram.com/jakespence
    🎬 Watch me on YouTube: youtube.com/jakespence135
    🌟 Support me on Patreon: patreon.com/jake_spence
    🏁 Shop BMW merchandise: bimmerstreet.com

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •