So today I ran some errands. Bought rubber grease from BNT, more abrasives from Bunnings. and some other stuff. As it wasn't raining, I took Blue Thunder.
After chilling a little this afternoon, I got stuck into it in the workshop. I was initially doing the tubes with the flap disc, and the cast iron with wire brush on the drill. It was slow going. After about 30 mins, I figured I needed something faster. It was time to try: The Cup Brush on my angle grinder. I just have a baby grinder, Black and Decker. A present from a friend years ago for helping him out with computer probs. When I'm buying my own kit I usually buy Bosch Blue, De Walt etc. I find the 'pro' tools have more power, more torque, do the job faster. I've been pretty impressed with this little grinder.
I think going to the cup brush reduced time to complete by 2/3!
So I've bare-metaled both front strut housings, and brushed on rust converter. As you can see above, the brush cup is pretty much shagged.
And above: the beauty of CRC brush-on Rust Converter. Yeah I've left the cups on as I don't have a 3-jaw puller.
Hints. Eg, if you're going to do this:
- the cup brush produces little metal arrows that'll go through 3 layers of clothing and nick your skin. Overalls are a good idea, or better still, a leather metalworkers apron if you have one.
- Make sure you use full PPE. This is not a rehearsal! I used 3M respirator with 2297 particulate filters; De Walt safety goggles, Peltor H7F Class 5 earmuffs (Ear Defenders, if you're from Blighty); and Welding Gauntlets. In case I slipped with the grinder, to protect my hands and wrists. We might not be doing this for a living, but the damage occurs just as quickly, and a trip to After Hours med centre or A&E to get stitched up or your eyes operated on is much more costly than some saftety gear!
- Buy 2 cup brushes, you might go through one and not be finished. They're not expensive. 20 or 22mm spanner to tighten the 'Brumby' (from Bunnings) quick release into your grinder.
Oh, and here's some pics of the rotor shields that I primed this morning before errands.
Tomorrow I'll be painting.