www.b50.org

Ubert767

Hello Ian,

I'm pretty certain that it is primary oil, being thin and containing what looks like clutch plate debris ( blackish). It only weeps down the back of the casing directly after a run. All is OK during storage on prop stand, with no further leakage.

Rob

Ubert767

Double seal gearbox bearing, sprocket boss in good order, no wear groove in sleeve bush projection, final drive sprocket nut (with a smear of silicone) torqued up using newly fabricated socket, new primary backplate oil seal and gasket, Locktite 5188 on on the primary cover jointing faces, cover scr...

Ubert767

Screen Shot 2019-07-16 at 19.54.28.png I've had my Victor primary side apart again because I couldn't bear the small oil leak from the final drive sprocket any longer. To answer my own question and in case it is of use to others, the amount of required reach for a socket for the final drive sprocke...

Ubert767

I'm a fairly inexperienced rider on a recently restored B44VS and would appreciate some advice on how best to sympathetically treat the engine with a view to longevity. Around town, is it OK to enjoy the low down pulling power of these singles or better to keep the engine spinning faster with plenty...

Ubert767

kommando wrote: ↑
Sat Jul 27, 2019 4:49 pm
Suggest you ring them but as long as its for the C15 competition frame then it was used for the B25/B44 up to and including 1970. If its for the swan neck C15 then the shape could be different.

Thanks very much Kommando.

Rob

Ubert767

Please can anyone tell me if R.K. Leighton's C15T solo seat ( with suitable bracketry) will fit my 1970 Victor?

Thanks,
Rob

Ubert767

:thumb Thanks for the two replies from Oz. I, too, intend to weld an old socket onto the 38mm socket so that I can use it with a torque wrench. To be prepared for the strip-down I need the length of the drive shaft extension to determine the reach required (x). My engine is assembled at present. Tha...

Ubert767

I've just purchased a cheap 38mm A/F socket with 3/4" drive in order to fabricate a spanner for the final drive sprocket nut, but I don't know the reach required. Please can anyone tell me the length of projection (X) of the drive shaft from the clutch end to the outer face of the sprocket? Grateful...

Ubert767

Thanks JB, much obliged.
Rob

Ubert767

In pursuit of a leak free bike I'm inspecting the final drive oil seals etc.
Does anyone know the torque setting for the final drive sprocket 1 ½" AF nut on a B44/B50, please?

Rob

Ubert767

Many thanks, Kommando.

Rob

Ubert767

Gentlemen,
Would I be wrong to interpret Rupert Ratio's "touchy feely" guide for adjusting the tappet clearance on my B44VS as 0.006" for the exhaust valve and 0.003" for the inlet valve?
Thanks,
Rob

Ubert767

My thanks to both for that advice.
Rob

Ubert767

I have a Lucas alternator rotor (19- 8019) with a loose central boss. Please can anyone expand on the rotor repair that "RR" briefly describes in his book. Does it matter which side ( inboard or outboard ) of the rotor boss is machined away in order to reveal the worn components?
Thanks,
Rob

Ubert767

b44icon Approximately 400 considerate miles ago I completely overhauled my stock 1970 B44VS engine. An annoying top end oil leak gave me reason to remove the rocker box and upon inspection I found a broken recently renewed inlet inner valve spring, an item sourced from a reputable UK supplier. The b...

Ubert767

minetymenace wrote: ↑
Sat Nov 17, 2018 5:50 pm
to the forum!
The big end is the heart of the engine. You shoul consider replacing the rod if you are going to split the crank. Most big end suppliers are ok you just need someone to do it....

There's the rub, who do forumites recommend ??????

Ubert767

I had success in removing traces of wear on my B44 cam followers by using two grades of good quality diamond impregnated honing tools which are often used for the sharpening of wood chisels and the like.
Rob

Ubert767

Hello Tom, I used coarse threaded metric (M10 x 1.5 x 8mm) banjo fittings purchased from an internet supplier in the UK, search for banjo fuel line fittings. There was plenty of material in the filter body to confidently form the threads. Whilst not weakening it, I slightly increased the size of the...

Ubert767

In order to achieve a neater installation on my Victor I modified my "Norton type" filter base by drilling out the pipe spigots and tapping 10mm internal threads, I then fitted suitably sized banjo fittings. This gave more pipe routing options and worked well for me.
Rob

Ubert767

Thanks very much for the quick reply and reassurance.
Rob

Ubert767

b44icon Advice please, The 12v ignition coil on my B44VS has a resistance of approximately 3.5Ω. It is used in conjunction with a Wessal Vape electronic ignition system. After a short trip of about five miles in an ambient temperature of 18°C the coil body temperature is 47°C (the surrounding compon...

Ubert767

b44icon I have successfully used the above advice when curing an annoying gearbox oil leak, all went well but I was having some trouble when refitting the inner timing cover. This was caused by difficulty maintaining the gearchange cam plate and the gearchange quadrant in their relative positions ( ...

Ubert767

The cooking was good, the owner of the bike collection was in fact the chef and there were about a dozen choice bikes placed around the dining room to enhance the experience. IMG_20180618_193051797.jpg I've no idea what the crucifix or the piece of oily rag on the floor below the bike is for! :???: ...

Ubert767

Just returned from a cycle tour through the Dolomites. In Cortina d'Ampezzo this nice B40 was one of the attractions in our hotel restaurant.

Ubert767

My B44VS needed a thicker than standard head gasket, I think the head may have been renewed at some stage. Being reluctant to have the fire lip reduced and unable to find a suitable thick gasket from UK suppliers I cut one from a piece of 1.2mm copper plate (0.047") obtained from Fleabay. It wasn't ...

Ubert767

Please can anyone offer a novice any advice on preperations for laying up a bike for winter in our damp maritime British climate? It's a recently restored B44VS and it'll be stored in a dry but unheated garage.
Thanks,
Rob

Ubert767

Thanks for the replies.
It seems that the Oddie fittings aren't "foolproof", I think I may deploy some neodymium!

Rob

Ubert767

Having recently read about a fellow forumite loosing a side panel and my having concerns about the reliability of Oddie fittings, does anyone have any unobtrusive solutions to preventing loss of side panels, should they fail?

Thanks,
Rob

Ubert767

Hello All,
Picked up my tank from the paint shop this morning, two-pack in RAL 1023, very pleased.

Thanks again to the forum for help.
Rob

Ubert767

Here's my 1970 B44VS awaiting its petrol tank which is at the paint shop and due any day soon. P1060465.JPG P1060467.JPG With a Wasssel ignition and a new Amal carb it starts easily and reliably, can't wait to get it on the road. Thanks very much for all the help and advice I've received from this f...

Ubert767

Hello Claus,
The cylinder hasn't been rebored, only lightly honed. The oil tank, which has sat unused for 35 years, was cleaned with paraffin and a handfull of 1/4" nuts then shaken vigorously till it flowed cleanly. I take your point about exercising the bike after rebuild. Thanks for your input.
Rob

Ubert767

I drained the sump oil (about 70ml) in order to attend to an oil leak and placed the receptacle above some magnets overnight to see what particles were in the oil.There are no big nasties on the mesh filter or floating around, just this fine ferrous powder attracted to the magnets. The engine has be...

Ubert767

Thanks very much Kommando

Rob

Ubert767

b44icon Thanks for the advice, I've dynamically timed it and now it starts well and the exhaust is running a lot cooler. :smile: I'm a bit concerned about oil flow to the rocker box, should I be able to see a substantial oil flow down the rocker assembly when viewing through the pushrod inspection p...

Ubert767

I've just started my stock rebuilt 1970 B44VS after it slumbering for the last 35 years in three wooden packing cases :smile: It has a new Amal Premium carb jetted to stock with 240; 106; a 3.5" slide and also a Wassell ignition. I've statically timed it to 28 degrees ( referring to the crank timing...

Ubert767

b44icon This is my take on the retrofitting of an RGM oil filter behind the gearbox of a 1970 B44VS. P1060447.JPG Four inch length of 2" x 3/16" mild steel flat bar (drilled for the filter head's 5/16"UNF fixing bolts) has a 3/4" long by 3/4" diameter boss (drilled to accept the longer than standard...

Ubert767

b44icon Not an easy task but, with some care and frequent reference to my "ABC Beginners Guide to Gynaecology", I have a not perfect but pleasing result with the dent removal. The tank is now ready for final polishing and painting. IMG_0206.JPG A couple of questions, 1. Any advice out there on the p...

Ubert767

Please can anyone offer a dimensional drawing (or photo) for a mounting bracket which enables the fitting of a "Norton Commando" type external oil filter to a 1970 B44VS. I would prefer not to modify the frame an any way.
Thanks if you can.
Rob

Ubert767

b44icon Had some modest but encouraging success with my dent removal tool today :thumb I've changed the "piston" which was an unsoldered "end feed" cap to a "push-on" type because I was loosing some grease from the sliding surfaces; the push-on fittings have an "O ring" which forms a good seal but a...

Ubert767

Advice please b44icon I have some mildly annoying dents in the tank of my 1970 Victor which I am hoping to remove prior to painting but I can't reach effectively to remove directly through the filler hole. IMG_20170530_113235199.jpg I've knocked together from odd bits and pieces what I hope to be a ...

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