Last weekend, while galivanting through Macquarie Pass down to the 'Gong - I then slipped up to Liverpool to catch up with Nigel - the man behind Xtreme Fuel Systems, and a new style of *blasting* parts.
This method does not use vapour pressure like water blasting, or soda blasting, or any type of blasting medium *under pressure*......
What it consists of, are thousands of small steel parts - like ball bearings but square - which sit and vibrate in a big rotating drum. Carbies - mostly your old-school automotive carbs and manifolds etc, are placed in the drum for a period, and come out looking almost polished and with 3 coats of clear !!!

No clear coating is applied - the parts just look like that. The method is referred to as *mass finishing* of parts.......
Nigel has done a few jobs for a mate of mine from Sydney, Garnett Cook. Garn is a wizard with old Zeds, and knows more about them than anyone I know. He also likes his bikes to look the part.......so here are some examples of the sort of finishes you can get with this style of mass finishing......
BEFORE - DT175? head

AFTER

BEFORE - Assorted bits n pieces from a Z900

AFTER !!

How is this set of cylinder heads and barrels from a H2 750/3 ??? mmmmmm nice !!!

Rear drum brake housing from a Z900

Cylinder head and cam cover from a Z900

Z900 sump pan

I *think* this is an old Honda twin motor ??

You can see that this finishing process imparts a fantastic finish to all parts. The small metal bits which vibrate in the drum, against the part being worked on, impart a toughened surface skin to the parts, and this helps keep the part clean, no matter how often it is handled. The finish on these parts needs to be seen to be believed - it is that good.
I dropped off a big tub of brake drum housings and wheel hubs for Nigel to do over the next few weeks - when they are posted back down to me, I will put up some pictures.
The website can be found here - so if you have some parts which need to be cleaned, its worth giving this method a shot. The more parts you get done at once, the cheaper the whole exercise becomes.....
