My '79 Restoration

Hey, what projects are you planning or preparing for? CBX, other motos, workshop, WHATEVAH!

Re: My '79 Restoration

Postby steve murdoch icoa #5322 » Thu Aug 17, 2017 8:25 pm

New paint sure looks pretty, especially the satin he used for the side covers.
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Re: My '79 Restoration

Postby jnnngs » Fri Aug 18, 2017 7:03 am


Who did the clocks for you - in particular converted them from kph to mph?

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Re: My '79 Restoration

Postby Keith64 » Fri Aug 18, 2017 8:27 pm

Nice work looks great! I have some of the same issues to eventually deal with.

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Re: My '79 Restoration

Postby Russ » Sat Aug 19, 2017 10:46 am

jnnngs wrote:Russ, Who did the clocks for you - in particular converted them from kph to mph?

It was a lad down Birmingham way Paul, I'll try to get find his email address.
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Re: My '79 Restoration

Postby Russ » Mon Aug 21, 2017 3:22 pm

Next up was the frame and other black stuff.......

Frame was basically OK but with rust where the paint had rubbed off or got chipped.
Battery box was corroded with snapped fasteners, all due to 30 years of acid fumes / spills I suppose. You can see the battery retaining flap is missing.


Anything that needed blanking off was done with machining various blanks. These all had O ring grooves in to make a perfect seal to keep the media out.


Master cylinders were particularly bad as they had been sitting in stale fluid for years



Frame and other steel stuff was stripped and then dry blasted so it didn't corrode.
The main stands wear where they rub on the floor and collapse a bit at the top where the stand stops rest against the main frame. This makes both the tyre's touch the floor when on the main stand (only the front tyre is supposed to touch), this wear changes the angle of the stand to the bike. They had plates welded top and bottom to compensate for the wear, dressed them off so they look original.
The side stand was pressed so the side of the pivot block was parallel with the down leg - in the picture you can see it curves away a bit which is just the weight of the bike on it over the years. Obviously some of you know all this already..... :D


Had to do a couple of TIG repairs to build up the battery box and hinges but managed to save it


Amazingly the VIN plate sometimes gets left on while being blasted :shock: Obviously it is then completely goosed, took pictures to prove the frame and VIN plate match as the paint will cover the frame number. She's a big old girl..........
The two holes in the VIN plate are originally held with 2.6mm brass drive-rivets.


I found a Belgium firm that sells the correct brass ones, although I got the size wrong the first time so had to buy a second set, we made a punch that fitted the head of the brass drive rivet and knocked them home. They look as they did when they left HM almost 40 years ago, well pleased.


Some of the Aluminium parts after stripping and vapour blasting, these are almost ready for matt black. If you look close you can see I've started to put the the blanking bolts on the threads and plugs for the piston bore etc. Each blanking bolt has a washer welded on so they don't have to use the actual component for hanging off when coating - as this can leave a small line where the powder doesn't cover. Some of the lesser important threads will just be cleaned out with a tap.
The blue stuff is heat resistant tape for going through the ovens.


The rubbers on the front foot pegs were worn and missing some block. A Dutch bloke called Wim makes his own in a shed somewhere in Holland, the old ones were removed with a hacksaw blade, Stanley knife, milling cutter in a windy drill and finally sandpaper. New ones were glued on with the same stuff they stick windscreens in with.


Next post is when the stuff came back from the coater's ................
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Re: My '79 Restoration

Postby Syscrush » Tue Aug 22, 2017 7:44 am

This level of attention to detail is inspiring. Thanks so much for sharing.
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Pics of Perry, my '79.
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Re: My '79 Restoration

Postby relisysxx » Fri Mar 16, 2018 3:27 am

Hi Russ
Could you PM me the number of your painter? his work looks good and I'm not a million miles from you.
Thanks in advance............Nick
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