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Old 11-09-2013, 09:43 PM   #26
ChadG

 
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Originally Posted by terry_b View Post
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...
That sucks, kind of what I was afraid of - good luck getting it squared away!
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Old 11-10-2013, 07:43 AM   #27
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Originally Posted by terry_b View Post
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...
Too bad. Might have to try the manual cleaning method, which is much more labor intensive.
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Old 11-10-2013, 09:18 AM   #28
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Originally Posted by terry_b View Post
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...
I believe the walnut shell blast is a final treatment, not an initial one. I can see how the initial oil buildup in the air pathways/valves would be a magnet for the shells.

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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Old 11-11-2013, 01:07 PM   #29
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Ok, well I got everything back together again. In the interest of "science" I did not install the spacer yet. I did the seafoam treatment (which, by the way, scared the piss out of me!) and once the engine ran all the crap out of it, feels good! Maybe its only wishful thinking, but just the cleaning up of the valves seems to have made a big difference in how the throttle feels. I'll post some pics up of before and after soon... They're cringe worthy
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Old 11-12-2013, 01:14 PM   #30
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Ok, well I got everything back together again. In the interest of "science" I did not install the spacer yet. I did the seafoam treatment (which, by the way, scared the piss out of me!) and once the engine ran all the crap out of it, feels good! Maybe its only wishful thinking, but just the cleaning up of the valves seems to have made a big difference in how the throttle feels. I'll post some pics up of before and after soon... They're cringe worthy
The upper induction cleaning smoothed out my idle a lot.

The manual cleaning smoothed it out even more.

After this experience I am a big believer in a catch can install on day 1.
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Old 11-16-2013, 01:57 AM   #31
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I posted my whole write-up here: http://www.camaro5.com/forums/showthread.php?t=328400

My plan is to follow up next week with more pics when I take it back apart and install the spacer. I'm hoping to find NO oil in the intake with both catch can and clean side separator. My valves were terrible! But yeah idle seems much better, a friend had commented that the camaro felt a bit sluggish, but I seem to have gotten some power back. At the very least, throttle response is much improved. These are DI engines, so even with a catch can we're going to see some build-up around the valves - just the nature of the beast I guess.
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