Engine Drivetrain 2nd Gen S Most liked posts in thread: Make your own Walnut Shell Carbon Blaster

And will you do step-by-step instructions next month entitled "Build your own nuclear reactor for peanuts"?......

 

This sounds good, but wouldn't a non-complete burn cause problems for the catatonic converter? Those things aren't cheap.

 

Catatonic converter!:lol:

Dave

 

Reading up on DIY walnut blasters...wondering if this project was completed? Perhaps there are other DIY threads y'all can link me to? Thx.

 

^^^ It will be, but the project is only in its second year of production.

 

^^^they woke me up MM, so I started posting early. :lol:

 

Nice work!! Looks great!

 

I used mine, just today.....it worked extremely well.

Not wanting to carbon up Metalman's thread , I bought the small pressure pot blaster from Harbor Freight with a 25% off coupon, I bought the factory adaptor that fits in the port, I made a wand out of a piece of 5/16" metal fuel line, bought 25lbs of fine walnut shells from Harbor Freight, and used my existing shop vac......worked a treat!

Here are some before/after pics.

The last one is what 10K/once yearly oil changes look like inside the engine, I think that will do nicely!



The dealer said he'd seen worse!



After.....





I pulled the valve cover just to make sure I had the valves closed before I blasted them, I think this engine looks pretty damn clean for 55K miles.....

 

Very nice Dave. Do u have a part number for the factory adaptor? How much time did it take u? Do u have a picture of your wand?

 

This was quite useful for those very few of us who don't have welding equipment and experience, metal lathes, training in use of lathes, and spare hunks of piping sitting around. Looked through my portable garage and found none of these.

But your citing the BMW adapter ($59 or so) and the 20-lb Harbor Freight blaster (as opposed to all their other blasters from $35 up to far too much) was very helpful. I'm going to see whether my local tool rental shop has a blaster I could use. Maybe make the J-shaped end.

 

After seeing this thread pop up again, I noticed absolutely NO difference in how my car ran or in the fuel mileage after I did the valves.....FWIW. Others have said they saw smoother running and better idle, as well as improved fuel mileage.

Oh, and I've done just over 15K miles in the last three years driving since I did the blasting....being retired sure cuts down on your daily mileage.

 

I'm thinking it makes more of a difference if you are really carboned up. How bad were your valves Dave?

 

If you go back a few pages, I did a video of my valves and posted some before/after pics......I'm told mine weren't so bad but they looked pretty gooped up to me.

 

My clubby had 130K before I had it done. It seemed to run a bit smoother and have a bit more power. It wasn't night and day as others have noticed.