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by nevhunter
Sat Nov 23, 2019 11:14 pm
Forum: Four stroke
Topic: brakes aka vincent
Replies: 31
Views: 976

Re: brakes aka vincent

You can spoke it up to either rim but I would prefer the later one for the full width hub sto get the best splaying of the spokes. They must not tend to bend just out of the nipples or they risk breaking and look like you know what. Nev
by nevhunter
Sat Nov 23, 2019 1:08 am
Forum: Member's Bikes
Topic: Can't get head on with engine in frame.
Replies: 7
Views: 369

Re: Can't get head on with engine in frame.

If you want to be able to remove the head easily you will probably have to shorten the studs and have different extended nuts made or you could use bolts with special washers. Treat the threads carefully and have as much thread length in the alloy and reduce the stem diameters like the studs are if ...
by nevhunter
Mon Nov 18, 2019 12:22 am
Forum: Four stroke
Topic: brakes aka vincent
Replies: 31
Views: 976

Re: brakes aka vincent

Some of those set ups end up with little or no spoke angle across the wheel which is particularly worrying for a side car. Vincent's have that problem. Nothing's perfect. The iron drums are much better than steel for brake effectiveness..Nev
by nevhunter
Fri Nov 15, 2019 4:28 am
Forum: Four stroke
Topic: Piston for model VA500
Replies: 7
Views: 291

Re: Piston for model VA500

Sorry .03937" Just under 40 thou. Nev
by nevhunter
Thu Nov 14, 2019 8:20 am
Forum: Four stroke
Topic: Piston for model VA500
Replies: 7
Views: 291

Re: Piston for model VA500

Bit of a coincidence. A frame I have here was originally a VA and made in late 39, technically a 1940 model. Getting to the MAIN topic of the thread....... .020 and .040 is very close to 1/2 mm and one mm oversize. I MM = .3937" Back to the frame...... I'm building a 350 OHV with a 39 NG case n...
by nevhunter
Wed Nov 13, 2019 10:13 pm
Forum: Member's Bikes
Topic: 1946 Ariel NG Project
Replies: 13
Views: 712

Re: 1946 Ariel NG Project

A good set of girder forks is worth quite a lot these days and you don't need a set that's not good. The tele's go straight in and why not use the alloy guards set up with "compy" or VCH style stays as was often done (even by the factory to order) in those days? Original hinged guards and ...
by nevhunter
Tue Nov 12, 2019 9:28 pm
Forum: Four stroke
Topic: Twin leading shoe brake queries.
Replies: 39
Views: 1054

Re: Twin leading shoe or twin trailing or what??

I'm with Paul on this. It's not safe to fiddle with those brake plates. Start from scratch with a properly designed twin shoe, if that's the way you want to go. I'd recommend a good inspection of all original ones in use too for wear, corrosion and cracks. Nev
by nevhunter
Mon Nov 11, 2019 8:43 am
Forum: Main Chat Forum
Topic: New club Facebook page
Replies: 58
Views: 1798

Re: New club Facebook page

Riding motorbikes can be dangerous, but facebook is really dangerous. I've decided to not do it. Is it replacing the confessional? Who cares about your tinea and whether you're using Grecian 2000? Nev
by nevhunter
Sun Nov 10, 2019 11:28 pm
Forum: Main Chat Forum
Topic: ALLOY WELDING
Replies: 14
Views: 468

Re: ALLOY WELDING

It depends on the application. If it's a high stress area on a crankcase boss or web or such I would always get it done the best way possible to avoid a failure in service that might ruin the part and some other bits including the rider. I have original alloy mudguards that were repaired with oxy an...
by nevhunter
Sun Nov 10, 2019 4:02 am
Forum: Main Chat Forum
Topic: ALLOY WELDING
Replies: 14
Views: 468

Re: ALLOY WELDING

TIG welding of Al is not that hard if you prepare and preheat and cool carefully. It's not a dissimilar technique to oxy welding but easier. Any time you are welding in the middle of something beware of cracking it. . The heat is very concentrated but it's a clean weld unless the original metal is p...

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