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Ryan Mills Ryan Mills is offline
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Default 04-13-2012, 07:12 AM

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Originally Posted by Vroom
Next time for me will be dry ice blasting. Sublimation!
That would be ideal. It would be cool if there was an easy way to rent one of those blasters, but they don't seem to be too popular yet.
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Vroom Vroom is offline
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Default 04-13-2012, 07:16 AM

A few guys @ work w/ DI cars are talking about a group rent in my garage. It won't be happening soon since I did mine 4 months ago and I'm not venting into the intake.
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Default 04-13-2012, 09:07 AM

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Originally Posted by Ryan Mills
I did my valves last week. I intended to do a write up with before and after pics, but after taking the befoer pics, I just wanted to get done with it. I bought the $35 media blaster from harbor freight and walnut shells to clean the valves, but I also had to use picks ansd carb cleaner to get the crud off. The stuff sticking to the backside of the wall was sticky like tar, and the walnut shells just stuck to it. I didn't use the adapter to hook up to a vacuumm, so it was a huge mess. So what I learned was:

Walnut shells work, but make a huge mess, and you have to use carb cleaner anyway.

Carb/intake cleaner works better than brake kleen.

Rifle cleaning kit from walmart works well as cleaning brushes, plus you can attach the brushes to a drill.

If I were to do it all again, I would use a gun cleaning kit, shopvac, and 6 cans of carb cleaner, even though it take more time.

On a side note, my idle is much more consistent and I don't have the random studder/misfire at idle. At idle, the RPMs stay at 600 or so when warm and it no longer randomly hunts between 600-750 rpm.

Methanol doesn't seem to make any difference, it might actually make the situation worse since it seems to moisten the gunk and make it sticky so a media balster is less effective.
Only thing keeping me from doing this is getting the valves to "seat" so you can clean them, I have a AT and was told you can tap the start button but then the car would try to start.... Don't see how that would work? I believe 3 of the cylinders are at TDC so you can clean those but you have to turn the crank bolt and that is hard to get to!
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Default 04-13-2012, 09:46 AM

Here's how I turned the engine over for another purpose.

http://www.n54tech.com/forums/showthread.php?t=14595
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Bimmer Barney Bimmer Barney is offline
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Default 04-13-2012, 12:10 PM

So I just talked with a buddy who's brother is a BMW Master Technician, working at a private shop. He said he'd do the Walnut Blasting using the professional equipment for me for $300 plus the cost of the gaskets. That's the best deal I've seen on the forums or through calling around.

I threw out the idea of a "group buy" to him at that price. He's in Lake Forest, CA. Would anyone be interested in this service? I'll let you know what he says.
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Default 04-14-2012, 08:53 AM

Quote:
Originally Posted by Vroom
Here's how I turned the engine over for another purpose.

http://www.n54tech.com/forums/showthread.php?t=14595
That's not to bad, my concern is not getting build- up/cleaner past the valves and getting the valves seated so this does not happen.
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Bimmer Barney Bimmer Barney is offline
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Default 04-14-2012, 03:06 PM

I posted in the For Sale section. Looks like if we can get 6 including me, the BMW Master Mechanic will do this service in his shop for $300 plus cost of gaskets.
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Default 04-14-2012, 11:06 PM

I was luck, 4 of my valves were closed instead of 2 or 3.... This is not that are, easier than I thought!
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bigugly bigugly is offline
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Default 04-17-2012, 02:04 PM

Just got done with before/after dyno pulls in Dallas.
made a few ponies more
still have some slots open for this week if anyone wants to do it
Let me know,
832-797-9114


the only thing i cant fix are broken hearts. gimmie a try in houston :D
I want to be your authorized installer for your BMW products!
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bigugly bigugly is offline
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Default 04-19-2012, 07:48 PM




Find pictures of cleaner valves, I dare ya


got two tomorrow! w00t!
Attached Images
 


the only thing i cant fix are broken hearts. gimmie a try in houston :D
I want to be your authorized installer for your BMW products!
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Default 04-19-2012, 08:05 PM

Attachment 9628
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Ryan Mills Ryan Mills is offline
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Default 04-19-2012, 08:39 PM

walnut shell!!!! I've seen it with my own eyes. It's really not a big deal. it goes right through without f-ing anything up. Now to show a cleaner valve...let me see...
I guess mine were decent for a first attempt


This is what it looked like before. 61k miles, about 700 of them on meth.
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Default 04-19-2012, 08:45 PM

I cleaned mine and forgt to take pics I will say it had to be done before because they where not that bad... The wire holder bracket was gone (under the intake)....cylinder 3 was pretty clean.


JB4 G5, WEDGE flash, 455 LPFP, HFS-4 meth kit, BMS OCC, VFF700 6266 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Power-Flex subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295
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MathR601 MathR601 is offline
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Default 04-20-2012, 07:09 AM

Did you guys replace the gaskets/orings of the intake ports or you can reuse them?
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Default 04-20-2012, 07:20 AM

Quote:
Originally Posted by MathR601
Did you guys replace the gaskets/orings of the intake ports or you can reuse them?
I replaced mine $32.00 at BMW for the set


JB4 G5, WEDGE flash, 455 LPFP, HFS-4 meth kit, BMS OCC, VFF700 6266 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Power-Flex subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295
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Vroom Vroom is offline
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Default 04-20-2012, 07:43 AM

Bought a set for $25 & left them in the spare parts drawer & reused the originals because they were in excellent shape.
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bigugly bigugly is offline
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Default 04-20-2012, 10:19 AM

Why waste your day, possibly break/damage something for mediocre results? Just bring it to me for killer results

Just got done with one, starting another one!


the only thing i cant fix are broken hearts. gimmie a try in houston :D
I want to be your authorized installer for your BMW products!
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robc1976 robc1976 is offline
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Default 04-20-2012, 10:34 AM

Quote:
Originally Posted by bigugly
Why waste your day, possibly break/damage something for mediocre results? Just bring it to me for killer results

Just got done with one, starting another one!
If you where in my area I would have, I did get great results put I would rather had it done lol!!


JB4 G5, WEDGE flash, 455 LPFP, HFS-4 meth kit, BMS OCC, VFF700 6266 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Power-Flex subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295
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bigugly bigugly is offline
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Default 05-08-2012, 02:29 PM

Quote:
Originally Posted by Bimmer Barney
I just called HP Autowerkes to ask about valve cleaning. Peter recommended doing a chemical clean through the intake track, followed by an oil and filter change. He said they've seen gains of 20whp on the dyno after doing this.

Your thoughts? Cost is $175


oh- hey forgot to update the thread:

we did a back to back dyno run on one car.

pulled 354 to the ground on a dyno dynamics.
did the intake cleaning.
no gain at ALL.
gained on the low end, lost on the big end.

our suspicions are that, the car has not had time to adapt to the new airflow, and was pulling timing/fuel due to it not being used to it.

everyone who has had this done has said it got better a few days after driving.... maybe THAT would show a power increase, but this is more for drivability and maintenance


the only thing i cant fix are broken hearts. gimmie a try in houston :D
I want to be your authorized installer for your BMW products!
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Default 08-02-2012, 07:46 PM

I'm doing the walnut blasting now. Cylinders 2, 3, 4, and 6 valves seem to all be closed. Is that possible? Ive only cleaned cylinder 2 so far. Looks so much better!
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Default 08-06-2012, 10:12 AM

Quote:
Originally Posted by e90man
I'm doing the walnut blasting now. Cylinders 2, 3, 4, and 6 valves seem to all be closed. Is that possible? Ive only cleaned cylinder 2 so far. Looks so much better!
In response to my own post, yes, 2, 3, 4, and 6 were all closed. Verified by liquid (carb cleaner) puddling.

So yes, this is possible.
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N54 TuNeR N54 TuNeR is offline
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Default 08-06-2012, 01:15 PM

You think with 29,000 miles It should be done? History-9000 miles jb3 went in but now jb4.occ at 19,000 miles.20,000 miles meth went on.should I look for signs?


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Default 08-06-2012, 02:20 PM

If you're not having any problems I would wait until 50k miles or so.

I'd like to see the buildup from people using mainly 0W-40 Mobile 1 as Terry has suggested using. Mine weren't as bad as I expected them to be, I've seen pictures of lower mileage cars with much more buildup. I switched to Mobile 1 at about 50k miles or so, now has 65k. I doubt it will prevent the buildup, but maybe it will help.
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ZZ70SS ZZ70SS is offline
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Default 08-06-2012, 03:55 PM

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Originally Posted by N54 TuNeR
You think with 29,000 miles It should be done? History-9000 miles jb3 went in but now jb4.occ at 19,000 miles.20,000 miles meth went on.should I look for signs?
Here's mine at 52K. Always have used Mobil 1 0W40. Running FBO since 35k, OCC from 45k.





As far as looking for signs, I noticed my car was beginning to idle irregularly and was getting lurchy when I would hold throttle at a steady high rpm (4k+). If you are not having any issues, I wouldn't worry about it until 50k unless you really feel like punishing yourself because it's not fun.


JB4 G5 - BMS DCI - FORGE DV's - ER Chargepipe - BMS OCC - PLM 3" kittyless DP's - CPe FMIC - CM Trunk Meth Kit (2.2 gal, CM12) - H&R springs - Koni Yellows - Magnaflow Race Mufflers - Dimisa 4" Tips - Avant Garde M359 - M3 rep front bumper - BMS Angel Eyes - CF M3 Performance Spoiler
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Default 08-06-2012, 06:25 PM

Quote:
Originally Posted by ZZ70SS
Here's mine at 52K. Always have used Mobil 1 0W40. Running FBO since 35k, OCC from 45k.





As far as looking for signs, I noticed my car was beginning to idle irregularly and was getting lurchy when I would hold throttle at a steady high rpm (4k+). If you are not having any issues, I wouldn't worry about it until 50k unless you really feel like punishing yourself because it's not fun.
wow thats crazy.well thx,car feels good so will wait then.figured id ask.im anal when it comes to my toys


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