Re: Late Jubilee front hub

Previously Dan Field wrote:

Iâm just about to start trying to but my boxes of Navi bit together which will involve nicking the roadholders off the jubilee and putting some late type forks in their place, I have two front wheels, and some plates but you now have me worried! Iâll have a look and see exactly what I have.

dan

Good luck! The perils of buying boxes of bits and not checking them immediately ð??ð??

Previously Nick Clarke wrote:

For what it is worth I know the lower fork legs and front mudguard changed with the 1964 later gearbox Standard Jubilee and the front wheel spindle was different. I'm not sure about the front wheel but the back plate located differently in the right hand fork leg which has a square locating 'peg' on the later forks. I'm pretty sure the front brake cable was different too. I will see if I can dig out some pictures to show you.#

Nick

Thanks Nick - that would be really helpful. Iâve seen so many different pictures of the Jubilee forks itâs difficult to know just which is the correct set! Thanks

Previously Dan Field wrote:

Iâll let you know if I find a spare! To be honest I bought two piles of leftovers from other peoples restorations to fill the gaps in mine, I then bought a Navi engine in a momentary lack of concentration and Thought well whatâs to lose!

Thanks Dan

Previously Nick Clarke wrote:

Hi Bruce, I have scanned and attached the pictures of the front forks and front wheel hub for the early Jubilee which should give you a starting point. I have also included a not very detailed picture of a late Jubilee with the later fork sliders which have what I would describe as 'squared off bottoms'. I have checked my original Maintenance Manual and Instruction Book and the Parts list which covers the later gearbox which was introduced in 1964 but the picture of the Jubilee forks is still shown as the early type! However, my very late (F Reg) Jubilee had the later forks shown in the two photos and if my memory is correct the only obvious difference on the front wheel was it didn't have the styling plate / cover which is shown over the brake back plate in the manual pictures. I hope that helps and makes sense! By the way both photos show the earlier silencers and other details which are not original so don't use them as a reference for total originality!

Nick

Thanks Nick - the drawings are what I have as well (a 64 parts catalogue plus maintenance manual) and âsquareâ forks. Interesting from Patrick as Iâve also seen pictures of the brake plate on LH side but confusing as similar/later years are also on RH side - did wonder whether the LH version was for export only or if theyâve been built with fork legs on âwrongâ side as thereâs no uniformity. Have also seen âsquareâ forks with the mudguard stays above the axle as well as below so itâs very confusing ð?yours looks good and to be what Iâm aiming at but possibly in âblueâ as canât find the original colour as supplied (itâs not in the NOC factory records). Iâll wait and see what I can find in a hub/wheel and make up what I need from there

Previously patrick_mullen wrote:

Nick's pictures definitely prove that there are at least three different versions of the Jubilee forks. My 1961 model has the later style forks with brake plate on the right but the mudguard stay enters ABOVE the axle - Nick's picture shows it below the axle and the brake plate on the right hand side.

I have an original road test report of the new model Norton Jubilee from MOTOR CYCLE dated 4 July 1963 and it very definitely show the brake plate on the other (left hand) side and the mudguard stays below the axle.

Nick also mentions the earlier silencers; one picture of a very nice Jubilee shows the silencers upside down.

My son is currently doing his PHd in High Performance Liquid Chromotography; this is a simple subject in comparison to Jubilee Specs. !!!

So don't worry too far as to what is correct; as long as it fits and works.

Patrick.

Hi Patrick - yes, thatâs what Iâve seen (and found) as well - obviously toward the end of AMC it seems to been a bit of âletâs see whatâs in stock & fit itâ. As there doesnât seem to be a definitive on the later Jubilees then I agree - if it fits & looks right then thatâs what Iâll go with

Previously Nick Clarke wrote:

You are right, my late forks had a different slide through wheel axle and nut. I am pretty certain there was a slide on spacer between the brake back plate and fork slider which held it firm and straight when the nut was tightened. I have attached a slightly different photo which I think shows that along with one of the near side of the bike showing the chrome finishing ring on the hub. Hope it helps give a complete picture!

Thanks Nick & Patrick - that helps enormously, looks like Iâve got the right forks for year, now to find a hub etc (Iâm rebuilding with new spokes/rims anyway)! One last (?) question - what actual size is the front brake? Iâve seen drums at 5â, 5.75â and bigger but not 6â - as I thought I had the right wheels and now find theyâre not Iâm a bit âstuffedâ for the right size.

I had read the Jubilee write up before but forgot about it - interesting on the production numbers, mine falls right between the Aug 65 batch (14****) and the 66 batch (17****j which I assume is what yours is Nick. Mines a (15****) and possibly made for a specific (unknown) customer and went to a dealer in the North East.

Many thanks for all your help ð

Previously patrick_mullen wrote:

Hello Bruce,

Well I can only say that my 1959 De Luxe and a 1961 Standard definitely had 6" front brakes. The 5" size is the smaller Francis Barnett- the FB 250 Cruiser had the same front wheel and brake as the Jubilee. Nick hopefully can confirm the size but in the picture it looks the same as the earlier items.

Your machine does sound to be a one-off in itself going by the frame number; you should contact NOC records to see what they have. Or maybe Andy S - he knows more than anyone about the Lightweights. I think in reality Jubilee production was insignificant from about 1964 on when Honda arrived.

Patrick

Thanks Patrick - just needed to confirm size, glad to hear the FB 250 Cruiser is similar - that helps when looking for part/s.

Iâd contacted Records but theyâve got very little on it - date of supply and where to is all thatâs recorded so going to be interesting when I get to certifications!

Previously Dan Field wrote:

If it helps this is the copy of the info Andy gave me on my fork collection!

The 2 on the left are the 1959/60 design, utilising a smaller (5") headlamp suspended from the top yoke.However, on the 1959 Jubilee, they employed an apron like on the 3rd left fork, so that means the left-hand one is probably off a James or Fanny B. They are basically all the same design.Initially, the wheel spindle was threaded both ends, with an identical sleeve nut both sides.The mudguard stays pass over the top and act as cotter pins, to lock the sleeve nuts - very clever!For 1960-on, they made the spindle fatter at one end, and used only one sleeve nut.For 1963-on, the spindle changed again (became longer) & used a conventional nut.The 3rd forkfrom left is from a 1961/62 De/Lux. It should have h/light brackets for the larger (6.5") headlight.The Apron is to hold the horn, and appears to have a 6.5" h/light profile - (the 1959/60 version would have had a different profile at the top).The Right hand fork is 1963/4 style (with the squared off bottoms. It uses a different length stay that acts as a simple clamp below the spindle - looks like they were sawn off in your example. You are missing the headlamp holder/top shroud.I hope that helps a bit!Dan

Think thatâs more or less what I figured out - Iâve got sets 1, 2 & 4 - just missing set 3 ðð. Took 4 years to get the square ended set but others were quite common!

bruce

Previously dennis_thompson wrote:

That should of course read: "...mudguard stays ABOVE the axle."

Cheers Dennis, different forks (again!), but helps from the hub aspect - just got to see what I can now find ð

bruce

Previously Nick Clarke wrote:

Hi Bruce, if you are still looking for a Jubilee brake back plate and the actuating cam the NOC shop has both in stock under 'Miscellaneous' for very reasonable money. They also stock Jub' fork oil seals, chrome fork slider covers etc. I don't think the fork bushes are available but last time I did a Jub' rebuild I got some phosphor-bronze bushes made up by a machine shop and soldered in place at a sensible price and they worked fine. Good luck with the rebuild!

Nick

Thanks Nick was waiting to see what came up on (the dreaded) ebay, have got a bare hub coming and just ordered load of other bits (brake plate etc) from the NOC shop. Got to admit, spent so much on this so far seems a shame to give up now so continue to âpourâ money into it! Seems to happen with most of my rebuilds though ðð and thatâs before the plating & painting!