[johnscales]

Hi all.
Didn't get any response from the UK forum sadly so posting this here in hope!


Recently completed diy wash/scrub of intake valves. Although the visual results weren't as good as some of the pics seen from other people online I and am very pleased with the performance increase I got. Didn't think that I would be saying it but was as many others have said the difference is 'night and day'.
I got lazy with the clean because removing the dreaded electrical box cost me 2 hours and by the time I was on the last cylinder I was losing daylight fast.
Anyways now that I know the process i'll be doing it again to see whether I can eek out any further smoothness but am looking to go the walnut blasting route for my next go.
I already know what hopper I'll be using for the walnut grit and can pre fab a vacuum nozzle for the ports easily enough but am wondering if anyone can suggest the smallest air compressor that would be up to the job possibly from experience.
Basically I don't want to have a big tank sat in my garage afterwards.

Cheers

[Edson]

I bought the harbor freight hopper and crushed walnut, got the bav auto plastic adapter, and got the bmw wand and it worked perfectly. I rigged up my own setup before and didn’t get as good as I did my 2nd time around. Hope this helps

https://docs.google.com/file/d/0B3Ta...BoTTM5aEE/edit
Here is the guide that helped me out.

[RED-d]

I used an 8 gal 2hp compressor from HF and it worked well.