Advice on getting alloy cover welded

Dellortoman said:
You must have cut a big bevel off one side of the alternator rotor to get that cover to fit. ;)
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Yep, but only on one side. :ROFLMAO:

Cover is actually a leftover from the Moto Witt F1 RGS racer which experienced a rather unscheduled rapid disassembly under a guard rail during a hill-climb event. Pictured bike runs constant-loss ignition.

piet
 
Laser Welders have come down in price a hell of a lot, a couple of grand for the cheap models. I tried to convince my local TIG bloke to buy one. BTW my 3c came with an Altinator cover with a welded repair and beveled to hell. It had race history. That repair just fell off one day. I bought a replacement from Wolfgang, he had 3 options. Great new old stock, expensive, ok 2nd hand and pretty crap sand cast knockoffs. I went 2nd hand. Probably none left now.
 
I once did a couple, Mk I and II, for Grant, theycame out really nice. One could have sworn they came from the factory like that, the mod was undetectable from the outside! No pics unfortunately, might be some on Grants' FB site.

piet
 
Well, Gowanlochs used to sell them and gold brake callipers, they were gold anodised Aluminium. Look really cool, and were called gold line parts. Gowys has a catalogue with them, see-through bevel gear covers, see-through float bowls, 41mm melosi carbs and other sexy bits and bobs. But who knows what Piet has found in special spots?
 
Here’s a couple, one done by me on the track and the other done by a welder. The series 2 cover has been narrowed by approximately 20mm and takes a Delrin insert to act as a wearable slider😊
TomIMG_0060.jpegIMG_1213.jpeg
 
motoddrob said:
Hi Piet,
whats the black finish on the polished ally parts. Kind of like the look of them.
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The "polished" bits are all anodised. I think it was anthracite grey, not sure though, too long ago... ;) Meant to replicate weathered magnesium. Problem is, different alloy compositions will result in slightly different shades of grey... but we were rather lucky, it all came out pretty uniform.

The "Iron Pig" engine was built from a tired and knackered old RGS donk that had been living under a workbench for 20+ years. It was covered with corrosion, the polished parts looked terrible after initial cleaning. Polishing would have been one helluva job, so, after a gentle blast with beads, it all went off to be anodised, a quick 'n dirty solution.

Bottom end was rebuilt to 180° with C7 cams in a big-valve head, still at 1000cc. Frame is 3CL with modified suspension and Gixxer wheels. Whole bike was essentially built from leftovers... goes alright, nothing extraordinary, but it is still a bit heavy.

PICT0055.JPG_Z3I3777.JPG
Co-owner/builder Willi Werndl at Spa Franchorchamps.

piet
 
piranha-bro2 said:
The guy's huge!! Makes that triple look like a monkey bike!!
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Yep, Willi certainly is a big lad. Not much daylight showing with him standing in the doorway!

But he has lost of weight since then, bike's now 3 seconds faster. ;) Me, otoh.. I've gained at least 5kg. :rolleyes:

piet
 
Initially, Track Day inflicted, with occasional road incidences added.
Most recently departing the M23 northbound for the M25 Eastbound.
My favourite left-hander is the M25 clockwise to the M11 Northbound, very satisfying getting that one right.
Ground clearance.jpg
 
sfcpiet said:
The "polished" bits are all anodised. I think it was anthracite grey, not sure though, too long ago... ;) Meant to replicate weathered magnesium. Problem is, different alloy compositions will result in slightly different shades of grey... but we were rather lucky, it all came out pretty uniform.

The "Iron Pig" engine was built from a tired and knackered old RGS donk that had been living under a workbench for 20+ years. It was covered with corrosion, the polished parts looked terrible after initial cleaning. Polishing would have been one helluva job, so, after a gentle blast with beads, it all went off to be anodised, a quick 'n dirty solution.

Bottom end was rebuilt to 180° with C7 cams in a big-valve head, still at 1000cc. Frame is 3CL with modified suspension and Gixxer wheels. Whole bike was essentially built from leftovers... goes alright, nothing extraordinary, but it is still a bit heavy.

View attachment 89710View attachment 89711
Co-owner/builder Willi Werndl at Spa Franchorchamps.

piet
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Fork seems to be BMW K 1100…
 
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