Well while I haven't posted anything new in almost a month, but fear not dear readers, my projects haven't disappeared into the "Too Hard" basket, I've just been busy in the background acquiring parts or getting bits ready. Rather than restore two sets of spoked wheels, I've got a pair of Henry Abe wheels for the bitsa that someone has painted over their life, and as is always the case with any alloy casting, after many years, the paint has lifted.
I was hoping that paint stripper alone would sort it, but even though I'm using the nastiest, most aggressive stripper available here, it's not enough. Bugger. OK, so I guess that I need to get them blasted? Well I thought that wet blasting would be the go, but the only "vapor blaster" nearby is only open Mon-Fri, and of course, he's closed by the time I can get away from work. Poop.
So then I thought about using a pressure washer with the stripper? I didn't own a pressure washer, but I'm always up for a new tool, so as Pat was buying 300 bucks worth of BMW parts from me, I started looking for pressure washers, and was pleasantly surprised to see a 4800 psi 8 HP gas powered one on sale on ebay for under 300 bucks, (plus another 60 for freight from Sydney) sweet!
While I was researching pressure washers, I found lots of mentions on the 'net of wet blasting using a special sandblasting attachment on a pressure washer, and even found some pretty impressive vids on youtube of folks stripping the paint off entire cars, trailers, engines, pickup trucks etc, so I thought, "I've gotta get me one of them!".
Supercheap Auto had them advertised on special for 80 bucks, but after phoning 4 different stores who were all out of stock, I decided that there was nothing for it, but to buy a more professional version from a pressure washer supplier for just over 160 bucks. Bloody hell.............. Anyway the washer and the sand blasting attachment arrived around the same time last week, and yesterday I spent an hour or so of unboxing everything and putting it together.
Everything was going fine, I assembled the pressure washer, filled the little "Honda knockoff" engine with oil and fuel, connected my garden hose and fired it up, and it worked brilliantly. I then unboxed the sandblaster attachment to discover that it didn't have an adapter to connect it to the washer's wand? WTF??? It had a big brass threaded lug, but no male quick connect, FCUK! Great, I had the pressure washer ready to go, a couple of buckets of grit, and a nice sunny winters day. Oh well, after playing with the washer cleaning overspray off the concrete frome where I painted both frames, I had nothing to do but put it away.
This morning I searched the website where I bought the sandblasting attachment from, and sure enough, they have the part, for around 30 bucks, but of course being the weekend, they were closed. I searched the Bunnings and Supercheap sites, but to no avail. Fcuking great.............
Well necessity is the mother of invention, so I ratted thru my boxes of bits looking for something with an internal 22mm thread. (I don't have a metric tap that big) I pulled out an old CB750 oil tank hose, and was 'rapt to see that one of the fittings was a perfect fit! Woohoo! CB750 to the rescue!
I chopped the fitting off the end of the hose and took a peek at what I had. Sadly the hole in the Honda fitting was too big, so I found a scrap piece of 20mm alloy bar, to machine up a male quick release fitting that would work with the Honda "Nut".
After some careful (unusual for me) measuring, I made up a pretty good facsimile of the original, and was happy that it was a nice snug fit into the female fitting. It mounted straight up to the pressure washer's wand, and I was happy that there were no leaks, or pressure loss.
Wet blaster adapter 9 by
Terry Prendergast, on Flickr
So I'd love to say that once I'd made my beaut adapter I spent the afternoon happily beadblasting all the paint off my wheels and swingarm, but for some reason the sand wasn't getting sucked out of the bucket, maybe because there were a few lumps therein, so I'll do some more research tonight, then tomorrow I strain my blasting media to make sure that's not the problem. One fcuking thing, after another.............