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Author Topic: Carbon build-up on the Intake Valves  (Read 1821 times)

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Offline roxer

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Carbon build-up on the Intake Valves
« on: March 23, 2015, 08:09:32 AM »
There is an excellent discussion going on over at the BB about DI engines and carbon build-up.

After doing some poking around the net, I see that Ford is having a serious issue with it and BMW has been cleaning theirs for several years now (most of the German cars are having performance problems).  BMW recommends a cleaning around every 35K miles.  They perform a cleaning using walnut shell blasting.

One of the members has performed a walnut shell cleaning on his already and has started an experiment on rerouting PCV vapors.  Thought I would post this for those that might be interested.  It would be good to get either DDM or  PAWs comments on the issue.

I am starting to believe I am suffering from this since I have been getting random misfire codes at start-up - cylinder 3 being consistent and where the PCV valves rests beside.  I will have to take the intake manifold off to confirm.  Car runs good after it warms up and I clear the code.  Happens about once a week.  My car has 33K on it as of this weekend.
« Last Edit: March 23, 2015, 09:15:52 AM by roxer »
2002 Isuzu Rodeo Sport - Still kicking!
2008 Polar Sky Redline - Auto - Fully Loaded
2007 Mysterious Solstice GXP - Current list of Mods

Offline critter

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Re: Carbon build-up on the Intake Injectors
« Reply #1 on: March 23, 2015, 08:36:43 AM »
If you are in the Chicago area WERKS does this. Before and after shots are quite striking.
I always wanted to be somebody when I grew up - I realize now that I should have been more specific!!

Offline werks

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Re: Carbon build-up on the Intake Valves
« Reply #2 on: March 23, 2015, 02:48:04 PM »
Hi guys,

Yes we do this walnut shell blast cleaning service on the GM direct injection engines at our facility.  The service is $600.00 and cleans your intake valves like new.  Gets rid of pesky hesitation, misfires, stumbles, etc...
Dave Gilbert
Performance Autowerks, Inc.
Phone - 815-439-4547
Fax - 815-439-6751
WERKS MAX Power Solstice GXP LNF - "50 Trim" WERKs turbo - 109 Octane - 415whp/428ftlbs
Anthony's SKY Redline LNF - GT35R - 93 Octane/Water/Meth - 442whp/414ftlbs
Ricky's Solstice LE5 '50 trim" WERKS turbo - 93 Octane/Water/Meth - 374whp/358ftlbs
Matt's Cobalt SS LNF Billet 55/57 WERKs turbo - 93 Octane - 442whp/450ftlbs
www.performanceautowerks.com
info@performanceautowerks.com

Offline roxer

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Re: Carbon build-up on the Intake Valves
« Reply #3 on: March 23, 2015, 03:59:42 PM »
Hi guys,

Yes we do this walnut shell blast cleaning service on the GM direct injection engines at our facility.  The service is $600.00 and cleans your intake valves like new.  Gets rid of pesky hesitation, misfires, stumbles, etc...

I would like to slide up there, but I live in NC.  I hope I can find some place local to do it.  Can you speak to when this should be done in mileage terms?  30K?  50K?  Are there driving habits that help reduce this?
2002 Isuzu Rodeo Sport - Still kicking!
2008 Polar Sky Redline - Auto - Fully Loaded
2007 Mysterious Solstice GXP - Current list of Mods

Offline werks

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Re: Carbon build-up on the Intake Valves
« Reply #4 on: March 23, 2015, 04:08:24 PM »
I would like to slide up there, but I live in NC.  I hope I can find some place local to do it.  Can you speak to when this should be done in mileage terms?  30K?  50K?  Are there driving habits that help reduce this?

Most of the customers we have done this service with have started to experience issues in the 50-70K range so I would recommend it anywhere in there.
Dave Gilbert
Performance Autowerks, Inc.
Phone - 815-439-4547
Fax - 815-439-6751
WERKS MAX Power Solstice GXP LNF - "50 Trim" WERKs turbo - 109 Octane - 415whp/428ftlbs
Anthony's SKY Redline LNF - GT35R - 93 Octane/Water/Meth - 442whp/414ftlbs
Ricky's Solstice LE5 '50 trim" WERKS turbo - 93 Octane/Water/Meth - 374whp/358ftlbs
Matt's Cobalt SS LNF Billet 55/57 WERKs turbo - 93 Octane - 442whp/450ftlbs
www.performanceautowerks.com
info@performanceautowerks.com

Offline roxer

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Re: Carbon build-up on the Intake Valves
« Reply #5 on: March 24, 2015, 06:10:42 AM »
Most of the customers we have done this service with have started to experience issues in the 50-70K range so I would recommend it anywhere in there.

Thanks for the information Dave. Really appreciate the input. I'm still trying to find someone here in the south. Not looking good for anyone local.
2002 Isuzu Rodeo Sport - Still kicking!
2008 Polar Sky Redline - Auto - Fully Loaded
2007 Mysterious Solstice GXP - Current list of Mods

Offline Rockchops

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Re: Carbon build-up on the Intake Valves
« Reply #6 on: March 24, 2015, 07:59:42 AM »
Lots of folks do this themselves too...to varying degrees of success. It's on my list for the summer but I'm in no rush...


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Offline ChopTop

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Re: Carbon build-up on the Intake Valves
« Reply #7 on: March 24, 2015, 09:14:39 AM »
Hi guys,

Yes we do this walnut shell blast cleaning service on the GM direct injection engines at our facility.  The service is $600.00 and cleans your intake valves like new.  Gets rid of pesky hesitation, misfires, stumbles, etc...

Hey Dave, have you got to the point where you can recommend a cleaning schedule?  After 20,000, 40,000, etc?

Offline roxer

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Re: Carbon build-up on the Intake Valves
« Reply #8 on: March 24, 2015, 09:28:35 AM »
Hey Dave, have you got to the point where you can recommend a cleaning schedule?  After 20,000, 40,000, etc?

In reply #4 he states 50 - 70K is where folks see a performance drop and recommends then.  I think Fords and BMWs are experiencing the problem closer to 30K miles from what I have investigated.  I'm thinking I want mine done before I get a new tune.
2002 Isuzu Rodeo Sport - Still kicking!
2008 Polar Sky Redline - Auto - Fully Loaded
2007 Mysterious Solstice GXP - Current list of Mods

Offline werks

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Re: Carbon build-up on the Intake Valves
« Reply #9 on: March 24, 2015, 03:12:16 PM »
At this point I am recommending every 60,000 miles or if symptoms present earlier.

I just added this service to our site here - http://www.performanceautowerks.com/catalog/product_info.php?products_id=2072

Here is a couple before and after shots -

Before -


After -

« Last Edit: March 24, 2015, 03:18:53 PM by werks »
Dave Gilbert
Performance Autowerks, Inc.
Phone - 815-439-4547
Fax - 815-439-6751
WERKS MAX Power Solstice GXP LNF - "50 Trim" WERKs turbo - 109 Octane - 415whp/428ftlbs
Anthony's SKY Redline LNF - GT35R - 93 Octane/Water/Meth - 442whp/414ftlbs
Ricky's Solstice LE5 '50 trim" WERKS turbo - 93 Octane/Water/Meth - 374whp/358ftlbs
Matt's Cobalt SS LNF Billet 55/57 WERKs turbo - 93 Octane - 442whp/450ftlbs
www.performanceautowerks.com
info@performanceautowerks.com

Offline critter

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Re: Carbon build-up on the Intake Valves
« Reply #10 on: March 24, 2015, 06:46:06 PM »
When Dave and I decided to do this I asked him to take before and afters because I didn't quite understand the whole thing. Well, these fotos are not some marketing fotos - they are from my car. Critter
I always wanted to be somebody when I grew up - I realize now that I should have been more specific!!

 

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