11-04-2013, 07:02 AM | #15 |
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Well, my buddy just bought a new compressor. My plan was to enlist him and manually turn the motor over untill I can confirm the valves are closed and then erect a trash bag tent over the intake valves. I'd use a shop vac to get all the media out.
I'm kind of wary as well, but the brush seems like it may not clean quite as well. I don't know... Either way I'll post plenty of pics and such
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11-07-2013, 01:00 PM | #16 |
Drives: '12 2LT Convertible Join Date: Mar 2012
Location: Belmont, California
Posts: 1,701
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Make sure you close the valves when doing any cleaning on a given cylinder. The instructions discuss how to manually close the valves on a given cylinder.
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Mods: GM Locking Gas Cap, RS License Plate Frame, SS Brembos, ZL1 FrontEnd, 14/15 Convertible Top
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11-07-2013, 09:53 PM | #17 |
Drives: 2012 SIM 2LT/1970 Camaro Join Date: Nov 2012
Location: Near Minneapolis, MN
Posts: 1,578
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I think one of the benefits of using the walnut shells for blasting is that any stray fibers/materials burn up if they make it into the cylinders.
BMW uses them to clean their intake valves, albeit with a special tool that blasts and extracts the debris simultaneously, IIRC.
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All bleeding stops eventually -- 2012 2LT Auto w/sunroof -- My journal thread
Roto-Fab Intake & W/W Relocate Kit -- ADM Race Scoop -- Dynomax VT Axle-Back Exhaust -- Vitesse Throttle Controller RX Catch Can -- Drake Bowtie Delete -- JacFab Radio Face Cover -- LED Fog Lights -- LED Dome/Trunk/Plate Lights -- Gen5DIY Dash ABL -- Diode Dynamics Cupholder Lighting Wishlist: ACS T5 Splitter -- Hood Vent Mod -- Footwell/Door Pull/Homelink Button Lighting |
11-07-2013, 10:46 PM | #18 | |
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Also how do you test that the valve is closed other than putting something like liquid seafoam in there to see if it puddles or not? |
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11-08-2013, 07:30 AM | #19 | |
Drives: 2012 SIM 2LT/1970 Camaro Join Date: Nov 2012
Location: Near Minneapolis, MN
Posts: 1,578
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Quote:
BMW's direct injection engines suffer from the same issues ours do, and their dealerships do walnut shell blasting with a special tool. Here are a couple of links to BMW user forums where the blasting is discussed:
As far as checking for valve closure, I don't know of a better way than seeing if an engine-friendly liquid will pool on top of the valve. That's what I did when i cleaned my valves (see post #73).
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All bleeding stops eventually -- 2012 2LT Auto w/sunroof -- My journal thread
Roto-Fab Intake & W/W Relocate Kit -- ADM Race Scoop -- Dynomax VT Axle-Back Exhaust -- Vitesse Throttle Controller RX Catch Can -- Drake Bowtie Delete -- JacFab Radio Face Cover -- LED Fog Lights -- LED Dome/Trunk/Plate Lights -- Gen5DIY Dash ABL -- Diode Dynamics Cupholder Lighting Wishlist: ACS T5 Splitter -- Hood Vent Mod -- Footwell/Door Pull/Homelink Button Lighting |
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11-08-2013, 02:23 PM | #20 |
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I may be making a trip up to harbor freight tomorrow. Wow! Those are some clean valves!
So I guess it would be easiest to remove the spark plugs to rotate the motor and shut each set of valves, and then just hook up the blaster and a vacuum and go to town right? Is there anything special about removing spark plugs?
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11-08-2013, 06:07 PM | #21 | ||
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11-08-2013, 07:32 PM | #22 |
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I'm actually thinking about doing the seafoam treatment AFTER I blast with the walnuts. That way I can just vacuum out the shells. I'm itching to dig in and see what the valves look like. Truthfully, I'll be a little disappointed if my valves are actually clean lol!
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11-08-2013, 08:52 PM | #23 | |
Drives: 2012 SIM 2LT/1970 Camaro Join Date: Nov 2012
Location: Near Minneapolis, MN
Posts: 1,578
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Quote:
__________________
All bleeding stops eventually -- 2012 2LT Auto w/sunroof -- My journal thread
Roto-Fab Intake & W/W Relocate Kit -- ADM Race Scoop -- Dynomax VT Axle-Back Exhaust -- Vitesse Throttle Controller RX Catch Can -- Drake Bowtie Delete -- JacFab Radio Face Cover -- LED Fog Lights -- LED Dome/Trunk/Plate Lights -- Gen5DIY Dash ABL -- Diode Dynamics Cupholder Lighting Wishlist: ACS T5 Splitter -- Hood Vent Mod -- Footwell/Door Pull/Homelink Button Lighting |
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11-08-2013, 08:53 PM | #24 |
Drives: 2012 SIM 2LT/1970 Camaro Join Date: Nov 2012
Location: Near Minneapolis, MN
Posts: 1,578
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Yeah, I suppose that may happen. Not sure what to tell you.
__________________
All bleeding stops eventually -- 2012 2LT Auto w/sunroof -- My journal thread
Roto-Fab Intake & W/W Relocate Kit -- ADM Race Scoop -- Dynomax VT Axle-Back Exhaust -- Vitesse Throttle Controller RX Catch Can -- Drake Bowtie Delete -- JacFab Radio Face Cover -- LED Fog Lights -- LED Dome/Trunk/Plate Lights -- Gen5DIY Dash ABL -- Diode Dynamics Cupholder Lighting Wishlist: ACS T5 Splitter -- Hood Vent Mod -- Footwell/Door Pull/Homelink Button Lighting |
11-09-2013, 09:19 PM | #25 |
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Well I picked up the blaster and the walnut media earlier today... ran into some complications... I think the reason the bimmer guys were having such good luck is that little tool that fits into the port. I either sprayed walnut shells everywhere or didn't get enough in one place to do any good... I may give it another shot tomorrow and see how I do... one problem is that I have some really carbonized valves. Way worse than I thought, and I was having trouble with the walnut media just sticking to everything in the port. It did seem oily still, an my intake manifold was a mess! I never cleaned it after installing the catch can, so there's a chance its just residual oil, but I don't know. More to come...
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11-09-2013, 09:43 PM | #26 | |
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11-10-2013, 07:43 AM | #27 | |
Drives: 2012 SIM 2LT/1970 Camaro Join Date: Nov 2012
Location: Near Minneapolis, MN
Posts: 1,578
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Quote:
__________________
All bleeding stops eventually -- 2012 2LT Auto w/sunroof -- My journal thread
Roto-Fab Intake & W/W Relocate Kit -- ADM Race Scoop -- Dynomax VT Axle-Back Exhaust -- Vitesse Throttle Controller RX Catch Can -- Drake Bowtie Delete -- JacFab Radio Face Cover -- LED Fog Lights -- LED Dome/Trunk/Plate Lights -- Gen5DIY Dash ABL -- Diode Dynamics Cupholder Lighting Wishlist: ACS T5 Splitter -- Hood Vent Mod -- Footwell/Door Pull/Homelink Button Lighting |
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11-10-2013, 09:18 AM | #28 | |
Drives: '12 2LT Convertible Join Date: Mar 2012
Location: Belmont, California
Posts: 1,701
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Quote:
Sounds like an upper induction cleaning followed by a manual wipe of any remaining oil, then the shells would be a reasonable approach. I'd like to see some "after" pics when you get a chance.
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Mods: GM Locking Gas Cap, RS License Plate Frame, SS Brembos, ZL1 FrontEnd, 14/15 Convertible Top
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Tags |
cleaning, diy, intake manifold, lfx, valves |
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