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Blasting intake valves DI goo with walnut shells #4686059
03/06/18 10:24 AM
03/06/18 10:24 AM
Joined: Feb 2016
Posts: 514
USA
DrRoughneck Offline OP
DrRoughneck  Offline OP
Joined: Feb 2016
Posts: 514
USA


Thoughts?

Last edited by JHZR2; 03/06/18 11:39 AM. Reason: title clarification
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686064
03/06/18 10:30 AM
03/06/18 10:30 AM
Joined: Jul 2005
Posts: 30,457
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,457
NY
Not many other easy choices after it gets that bad.


God Bless Our Troops

Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686065
03/06/18 10:30 AM
03/06/18 10:30 AM
Joined: May 2005
Posts: 3,438
Alberta, Canada
Smokescreen Offline
Smokescreen  Offline
Joined: May 2005
Posts: 3,438
Alberta, Canada
I don't have any cars with DI, but I suppose my next might have it. I already have plans to install an oil catch can when I drive it home.

This video only make me want to install it even more..I want to be proactive instead of reactive.


13 Civic Si 2.4L- 69Kkms(43Kmi)-PP,Wix
09 Corolla 1.8L-380Kkms(237Kmi)-PP,Denso
05 LeSabre 3.8L-210Kkms(134Kmi)-PP,Wix
03 Sierra 2500 6.0L-204Kkms(127Kmi)-PP,Wix

All with mpg > EPA
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686068
03/06/18 10:35 AM
03/06/18 10:35 AM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
Very common on the early BMW with DI. The newer engines don't really have this issue though, largely due to the lack of engine vacuum in the intake (no throttle body). The engines are now run on an internal vacuum pump, like a racecar dry sump system, so the valves don't really get that dirty anymore.

Last edited by mightymousetech; 03/06/18 10:39 AM.

Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686070
03/06/18 10:35 AM
03/06/18 10:35 AM
Joined: Jul 2002
Posts: 4,400
KY
MCompact Offline
MCompact  Offline
Joined: Jul 2002
Posts: 4,400
KY
Walnut shell blasting has been utilized for decades to clean deposits on intake valves. As a matter of fact, BMW used the process extensively in the mid '80s as part of a massive engine service campaign when the substandard U.S. fuels available at the time caused chronic intake valve deposits. That led to BMW developing an intake valve deposit test as a result.


Mine:
2014 M235i
1999 Wrangler Sahara
1995 318ti Club Sport

Wife's:
2009 Cooper Clubman

Son's
2009 328i

Buy what makes you smile...
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686113
03/06/18 11:35 AM
03/06/18 11:35 AM
Joined: Apr 2008
Posts: 37,202
Ontario, Canada
OVERKILL Online content
OVERKILL  Online Content
Joined: Apr 2008
Posts: 37,202
Ontario, Canada
Those are intake valves (title of the thread is off).


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686158
03/06/18 12:10 PM
03/06/18 12:10 PM
Joined: Aug 2016
Posts: 271
Alberta
carviewsonic Offline
carviewsonic  Offline
Joined: Aug 2016
Posts: 271
Alberta
I have a catch can by Elite on the way, to install on my new Impala. An ounce of prevention....


'18 Impala
'03 Park Avenue
'05 Park Avenue
'07 Honda Accord
'09 VStar 1300
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686169
03/06/18 12:18 PM
03/06/18 12:18 PM
Joined: Jun 2013
Posts: 525
Albany, NY
ford46guy Offline
ford46guy  Offline
Joined: Jun 2013
Posts: 525
Albany, NY


95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686184
03/06/18 12:28 PM
03/06/18 12:28 PM
Joined: Jan 2017
Posts: 278
Iowa
Iowegian Offline
Iowegian  Offline
Joined: Jan 2017
Posts: 278
Iowa
Intake valves of a MODERN 3.5l ecoboost with 70k miles.
This guy cleaned it manually.

https://www.f150forum.com/f38/cleaned-in...coboost-341899/


2011 Equinox, 2.4l
2009 Sienna, 3.5l
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686188
03/06/18 12:31 PM
03/06/18 12:31 PM
Joined: Dec 2010
Posts: 791
Romania
Andy636 Offline
Andy636  Offline
Joined: Dec 2010
Posts: 791
Romania
That's kinda silly, at least do it with some dry ice that lets no residue behind.

Re: Blasting intake valves DI goo with walnut shells [Re: Andy636] #4686230
03/06/18 01:10 PM
03/06/18 01:10 PM
Joined: Dec 2011
Posts: 4,755
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 4,755
North Carolina
Originally Posted By: Andy636
That's kinda silly, at least do it with some dry ice that lets no residue behind.

The walnut burns right off. Smells great, too.


"Zed's dead baby, Zed's dead."
Re: Blasting intake valves DI goo with walnut shells [Re: Andy636] #4686234
03/06/18 01:16 PM
03/06/18 01:16 PM
Joined: Aug 2002
Posts: 14,424
Silicon Valley
PandaBear Offline
PandaBear  Offline
Joined: Aug 2002
Posts: 14,424
Silicon Valley
Originally Posted By: Andy636
That's kinda silly, at least do it with some dry ice that lets no residue behind.
How much would it be using dry ice, the protective equipment, and the machine?

Walnut blasting is easy as long as you have the intake port adapter, and walnut won't sublime if you wait around too long.


"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686291
03/06/18 02:02 PM
03/06/18 02:02 PM
Joined: Jan 2017
Posts: 278
Iowa
Iowegian Offline
Iowegian  Offline
Joined: Jan 2017
Posts: 278
Iowa
Scroll down to page 5 on this one.
Took intake manifold off of a Traverse to do the spark plugs. (Easier I guess)
Found very durt valves.

http://www.traverseforum.com/33-engine-d...ics/2459?page=5


2011 Equinox, 2.4l
2009 Sienna, 3.5l
Re: Blasting intake valves DI goo with walnut shells [Re: DrRoughneck] #4686320
03/06/18 02:42 PM
03/06/18 02:42 PM
Joined: Mar 2006
Posts: 9,176
Pennsylbammyvania
dailydriver Offline
dailydriver  Offline
Joined: Mar 2006
Posts: 9,176
Pennsylbammyvania
I will eventually have to do this on my 1.6 EcoBoost, despite having a good OCC/air-oil separator (albeit NOT as HUGE as that Full Race one in the post above-that would take up 3/4 of the engine bay in my car!!), and using ONLY Shell V Power top tier fuel, and the lowest NOACK, and lowest calcium containing oils I could find, from day one of new ownership. frown

Since Ford does not offer this service at all, I will go to Custom Performance Engineering (a MazdaSpeed/Ecoboost tuner) near Baltimore when the time comes.
Their tech there also confirmed that whatever little residue which is left in the ports is harmless (even for a turbo GDI setup), and DOES smell GREAT once the car is started up after the procedure. smile


2016 Ford Fiesta ST
Ravenol REP 5W-30
Amsoil Ea15K51 filter
Motul Gear 300 non-LS 75W-90
Re: Blasting intake valves DI goo with walnut shells [Re: ford46guy] #4686433
03/06/18 04:21 PM
03/06/18 04:21 PM
Joined: Feb 2014
Posts: 2,288
Kansan,1911 45ACP fan
Marco620 Offline
Marco620  Offline
Joined: Feb 2014
Posts: 2,288
Kansan,1911 45ACP fan
That stuff works. Used in conjunction with a PEA based cleaner like it says to and it did its job on my GDi Hyundai. No squirrels or chipmunks lost a meal over me getting the valves/throttle body cleaned. Best GDI cleaner on the market!!


15' Civic 179k.0w20 Redline/Archoil9100,Eibach,Yokohama/Borla Exhaust/Tein Suspension/Fu7317/Redline Si-1
Right to work state proud. Non union household
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