1971 Fastback pics

Curiously enough I was just about to post the same enquiry … 

My bike has at some point in its career spent time on the Continent, where it has evidently been maintained by a competent person who however lacked access to genuine components and information. One result is a stainless steel rear mudguard, the forward mounting of which is a single fastening to the cross plate that terminates the top tube of the frame.

The coverage of these points in the workshop manual and parts book is far from being either clear or comprehensive, but the following seems to be the case.

As Mike says, the parts diagram shows two bolts and spacers apparently intended to connect the battery tray to a "Rear mudguard support bracket" (part-no: 06.2169). From the drawing (23 on the AN page for '71 models) it is not altogether clear how this bracket provides the promised support, but looking at the photograph of the mudguard it seems that this is via a single bolt (indexed 32 on the drawing) passing through the lower arm of the angled 06.2169 bracket. (However, the workshop manual says [section F18, point 5] "Remove the nuts and washers at the bottom front and lift the fender away".)

On the horn, Figure J7 in the workshop manual clearly shows it installed with the adjuster screw facing forward. What is less clear is exactly how it is attached to the machine. The various parts books all show it with two bolts; I think these must be the same two as for the mudguard bracket, but how all the bits go together I cannot work out.

The set-up on my machine is that the bracket on the battery tray has a triangular plate attached to the two bolt holes, the third apex of which uses a single screw to the centre of the horn. On my machine the spot welds connecting the bracket to the tray have given way, which is how I have come to investigate this matter.

Couple from my 69 which is pretty original of mudguard to horn area if any good to you.

Thx

Eddie

Although the battery and oil-tank arrangements are completely different on early models, they do appear to be similar in the battery-tray/mudguard aspect, namely with a narrow two-bolt fixing that also provides the horn mounting — see picture.

However, there's a mystery; the mudguard bracket 06.2169 illustrated in the parts drawing at AN (https://andover-norton.co.uk/en/shop-drawing/22/rear-fenders-tail-light-and-tail-section) has a much wider spacing; 2 and 3/16" versus 1 and 1/4" — again, see picture:

On the other hand, both AN and RGM list a folded bracket 06.0564:

    AN: https://andover-norton.co.uk/en/shop-details/15309

    RGM: https://www.rgmnorton.co.uk/buy/fastback-folded-stainless-steel-silencer-mount-bracket_1375.htm

This looks like it might substitute for not only the 06.2169 bracket but also for the associated spacers.

I plan to take this up with AN, but in the meantime could Eddie let us see some pix of the parts he has?

Hi Julian and Mike,

From another 69 Commando without mudguard. Attached images.

Narrow bolt spacing matches the triangular bracket for the Horn. This is a later 69 with aftermarket mudguard so cannot be sure that the bracket with wider bolt spacing was not used.

As it turns out, my previous responses were marred by failing to properly inspect my machine before posting.

My current understanding is as follows:

The square mudguard support bracket 06.2169 is for the upper forward mounting, as shown at the top of the second picture in Eddie's first post — i.e. bolted to the transverse plate that terminates the main top tube of the frame

In the last picture, note the pair of holes at the bottom of the mudguard that evidently are intended to align with the bracket on the battery tray.

What I have yet to work out is the exact form of the connection, as designed. This mudguard is butchered, but a new guard that I have has vertical slots in the same position. Note that the upper forward mounting point is also slotted — evidently one should expect some opportunities for "adjustment" …

No problem. Glad it got sorted.

Eddie