Walnut shell in cylinder

ghost_m2c · 02-10-2022, 02:20 PM

Hey all,
Recently walnut blasted my valves and I did a pretty good job cleaning up the walnut shells from all of the valve crevices. However, if maybe 1-2 granuals of 12 grit walnut media made it into each of the cylinders could that possibly cause damage? I presume that they would just fly out the exhaust valve within the first minute or so of running, but I would still like to make sure so I do not break anything.

N54_e90 · 02-10-2022, 02:50 PM

They'll burn off

BSM n54iS · 02-10-2022, 02:53 PM

It'll stumble around for a bit but don't freak out and shut it off after 4 sec... Let it burn off and see

ghost_m2c · 02-10-2022, 05:55 PM

Quote:

Originally Posted by BdSM n54iS

It'll stumble around for a bit but don't freak out and shut it off after 4 sec... Let it burn off and see

Well, she started up and misfired on cyl 4 and 6 almost instantly and was really choking down for a couple of minutes. Cleared the codes and restarted it, ran like a charm. Only downside is I went the cheap route and got a harbor freight media blaster with no vacuum attachment, so I basically let of the walnut shell go everywhere. Had to clean up the mess I made in the engine bay and my garage. Went for a quick spin and now my entire garage smells like a campfire.

El-daybed · 02-10-2022, 07:46 PM

Quote:

Originally Posted by ghost_m2c

Well, she started up and misfired on cyl 4 and 6 almost instantly and was really choking down for a couple of minutes. Cleared the codes and restarted it, ran like a charm. Only downside is I went the cheap route and got a harbor freight media blaster with no vacuum attachment, so I basically let of the walnut shell go everywhere. Had to clean up the mess I made in the engine bay and my garage. Went for a quick spin and now my entire garage smells like a campfire.

You can buy a 10$ adapter to put a vacuum on or even better if you have a 3d printer just give it a google and youll find the diagram to print it

ghost_m2c · 02-10-2022, 07:58 PM

Quote:

Originally Posted by El-daybed

Quote:

Originally Posted by ghost_m2c

Well, she started up and misfired on cyl 4 and 6 almost instantly and was really choking down for a couple of minutes. Cleared the codes and restarted it, ran like a charm. Only downside is I went the cheap route and got a harbor freight media blaster with no vacuum attachment, so I basically let of the walnut shell go everywhere. Had to clean up the mess I made in the engine bay and my garage. Went for a quick spin and now my entire garage smells like a campfire.

You can buy a 10$ adapter to put a vacuum on or even better if you have a 3d printer just give it a google and youll find the diagram to print it

Too late lol

ab987 · 02-12-2022, 12:10 AM

Quote:

Originally Posted by ghost_m2c

Well, she started up and misfired on cyl 4 and 6 almost instantly and was really choking down for a couple of minutes. Cleared the codes and restarted it, ran like a charm. Only downside is I went the cheap route and got a harbor freight media blaster with no vacuum attachment, so I basically let of the walnut shell go everywhere. Had to clean up the mess I made in the engine bay and my garage. Went for a quick spin and now my entire garage smells like a campfire.

The exhaust smell of burning off the walnut shells was my favorite part, I probably looked like a complete weirdo sniffing my exhaust lol. I did the same way, I borrowed a compressor from a friend and used the handheld blaster. Very little clogging, it worked great

E93Dude · 02-12-2022, 06:31 AM

Quote:

Originally Posted by ghost_m2c

Hey all,
Recently walnut blasted my valves and I did a pretty good job cleaning up the walnut shells from all of the valve crevices. However, if maybe 1-2 granuals of 12 grit walnut media made it into each of the cylinders could that possibly cause damage? I presume that they would just fly out the exhaust valve within the first minute or so of running, but I would still like to make sure so I do not break anything.

Did the walnut blast a year ago as one of my Covid projects. I, too, got walnut shell in one of my cylinders. I fretted over it and tried several wacky methods to get them out before just removing the spark plug and inserting the stainless steel Harbor Freight compressor wand into the through the spark plug bore and blowing the shit out. Blew most of it right out. What was left burned off after a few seconds of a rough start.

Walnut blasting for the first time made an epic difference in how my car ran. Its a must-do for long term ownership.

jadams161 · 02-23-2022, 08:03 AM

The "bmw" blast tool is available on Etsy for $10. (3D printed) works great.

E93Dude · 02-23-2022, 05:58 PM

Quote:

Originally Posted by jadams161

The "bmw" blast tool is available on Etsy for $10. (3D printed) works great.

Thats exactly where I bought my vacuum adapter tool. Worked perfectly, and didn't get ripped off paying $70 from BMW….

Jaronbwall · 02-25-2022, 11:53 AM

Quote:

Originally Posted by ghost_m2c

Well, she started up and misfired on cyl 4 and 6 almost instantly and was really choking down for a couple of minutes. Cleared the codes and restarted it, ran like a charm. Only downside is I went the cheap route and got a harbor freight media blaster with no vacuum attachment, so I basically let of the walnut shell go everywhere. Had to clean up the mess I made in the engine bay and my garage. Went for a quick spin and now my entire garage smells like a campfire.

That's amazing

02-10-2022, 02:20 PM	#1
ghost_m2c Chief Cavity Inspector (TSA) 45 Rep 108 Posts Drives: 2009 335i XDrive Join Date: Nov 2020 Location: Kansas iTrader: (0)	Walnut shell in cylinder Hey all, Recently walnut blasted my valves and I did a pretty good job cleaning up the walnut shells from all of the valve crevices. However, if maybe 1-2 granuals of 12 grit walnut media made it into each of the cylinders could that possibly cause damage? I presume that they would just fly out the exhaust valve within the first minute or so of running, but I would still like to make sure so I do not break anything. __________________ 2009 335i XDrive MHD Stage 1 , VRSF Intercooler
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02-10-2022, 02:50 PM	#2
N54_e90 Don 50 Rep 300 Posts Drives: '09 E90 335xi Family Sedan Join Date: Jan 2017 Location: Your Mother's House iTrader: (0)	They'll burn off
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02-10-2022, 02:53 PM	#3
BSM n54iS Brigadier General 2682 Rep 4,203 Posts Drives: '11 335is \| '16 Macan Turbo Join Date: Aug 2015 Location: Everywhere and Nowhere iTrader: (7)	It'll stumble around for a bit but don't freak out and shut it off after 4 sec... Let it burn off and see __________________ '11 335is BSM MT "BMW Performance Editon" \| '16 Porsche Macan Turbo GruppeM CF Intake \| AR Resonated DP \| ER CP \| Turbosmart RacePort BOV \| Cobb FMIC \| RB Inlets \| RB External Mishi/Turner OCC \| Michelin PS4 \| BMW Performance Springs/Bilstein B8 + Dinan & M3 bits \| BMW Brembo BBK \| BMW Performance CF Spoiler \| BMW Performance CF Lip \| BMW Performance Alcantara \| PS Designs GTS Armrest \| AG H6-40 \| Rear Seat Delete
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02-23-2022, 08:03 AM	#9
jadams161 First Lieutenant 184 Rep 355 Posts Drives: 2009 E93 335i. 2011 E90 328xi Join Date: Apr 2021 Location: Upstate New York iTrader: (1)	The "bmw" blast tool is available on Etsy for $10. (3D printed) works great.
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