radiomike7

You haven't told us what you are going to use it for, if it is for private use not in conjunction with a business or for hire and reward you are tachograph exempt and an analogue tacho is purely a speedometer.

Check the manual but from distant memory the shaft is assembled with the joints out of alignment, there is a small dimple on the joint or shaft which indicates the correct position.

From my Continental Tyre data list an 11.00R20 is 1082mm outer diameter on an 8" rim which is 42.6" in old money. The theoretical sizes are often a good way out of the actual, a 10R20 would theoretically be 40" but is actually 1052mm or 41.4". I have only seen % aspect ratios marked on truck tyres of 80% and under.

Don't forget that you are stuck with using tubes if you have split rims and that fitting tubes to tubeless tyres is not a great idea. The tyre sidewalls will be marked tubeless or tube type. Vehicles such as loading shovels and Foden DROPS use tubeless tyres with a split rim but the outer rim is sealed to the wheel with a large square section rubber ring.

There were probably many Leaping Lenas around at the time due to the fierce action of the cone clutches used. The most famous was BLH 21, one of the Scammell 100 ton tractors that would raise the front wheels when attempting to start a heavy load.

You could try SP Water pumps in Warrington that Rob used for his Militant pump last week.

Don't get too excited, sounds like it is well worn. https://www.ebay.co.uk/itm/Tank-Track-x-10-Links-CVRT-/282865951284

Winch is a hydraulic Rotzler with an 11.5 ton rating.

You cannot use a modern 22.5" wheel on the RL, the method of centering the wheel is different. Most (but not all) 20" wheels use cone nuts with a matching chamfer on the wheel and usually have a left hand thread on the nearside. Modern 22.5" wheels are spigotted on to the hub and have right hand threaded wheel nuts with an integral flat washer. The offsets are chosen so that when paired up for the rears there remains a certain gap between the tyres. An 8.25 or 9.0" rim would have a greater offset making your problem worse.

Thor missile? https://www.google.co.uk/search?tbm=isch&q=raf+missile+launcher+steering+rear+bogie&chips=q:raf+missile+launcher+steering+rear+bogie,online_chips:thor+missile&sa=X&ved=0ahUKEwii6qWurPLbAhXmJ8AKHXH9Cz0Q4lYIKSgD&biw=1391&bih=661&dpr=1.15#imgrc=Qx3u4Ev1QGOnaM:&spf=1530050802972 Tractor was a Leyland Hippo. https://www.google.co.uk/search?q=douglas+pgm+17+transporters&tbm=isch&source=iu&ictx=1&fir=haNjoB9Y3GgkMM%3A%2CeUVyAVZqRO4YwM%2C_&usg=__9PdFxN-fqdKxUoavpRxeCkVucps%3D&sa=X&ved=0ahUKEwjpi663rfLbAhXMJMAKHV3eA0YQ9QEIWTAH#imgrc=haNjoB9Y3GgkMM:

I suspect the devastation caused by a 30kt warhead might be worth the effort to prepare and fire a missile......

The Leyland Martian cargo and Scammell Constructors used a simple removable davit and a 1/2 ton chain block which might be simpler to source and fit.

Mini Antar = Big Ben http://www.britishcommercialvehiclemuseum.com/image-archives/product/thornycroft-big-ben-tractor-unitta13492q/

Check that the inter axle diff is not locked or seized up and that the front axle is not engaged Always engage the inter axle diff lock if going off road, if one rear axle spins the diff will seize in a very short space of time.

NFL 16:1, SFL/TFL 14:1 Cam is the same but runs 5 thou extra clearance on the exhaust valves. The inlet manifold looks like it may be the same piece but mounted upside down and with a different elbow. The injector nozzles are different. C6SFL was also used for the Vickers Vigor but for some reason was only rated at 190bhp for the mk2 and 210bhp for the mk3 whereas the automotive version was circa 250bhp. If you need more power I suspect it would be easier to find a complete Rolls 305 or similar engine with a centre mounted turbocharger. As far as originality is concerned it could be claimed that the C6 is non original and fitted as an in service modification when spares for the Hercules became scarce. Finally are you sure the transmission is up to coping with the extra torque?

Hi Sam, Are you looking for a replacement blower or are you trying to convert a C6 NFL? There are many differences between the two including a lower compression ratio, fuel pump settings and accessories such as the oil filters.

Interesting road test of the diesel version from 1953, it suggests the winch might be a Darlington. http://archive.commercialmotor.com/article/28th-august-1953/42/bigbet-is-fast

John, what is the issue with using the CVRT J60 starter? Alternatively it may be possible to convert the starter if 24v field windings, armature and solenoid are available.

Doesn't work Andy, the battery that has been used for 12v will not recover if connected to another fully charged battery in series. My local DAF dealer did a similar job on a large fleet many years ago and it cost him dearly in replacement batteries.

Agreed, but was the turret not an Alvis product or is that just another rumour?

The same happened with a batch of Martian chassis/cabs, again sent to Marshalls for bodywork. This list could be helpful with many examples of in service registrations: www.mafva.net/other%20pages/vrnarmy.doc

You could try RSOLES: http://groups.yahoo.com/groups/RSOLES

There were at least two Juniors that left the factory as artic tractors and others were converted, I remember Hills of Botley ran one. The chassis, rear bogie, gearbox and 2 speed transfer box were essentially the same as the 6x6 Constructor so it was a robust bit of kit just lacking the extra driven axle and extra power of its sibling. As for trailers they were often seen dragging the 60 ton (payload) Crane float trailers around with various loads including boilers and engine tenders, the video shows an unusual trailer which is the carrier from the old 100tonner fitted with a crude front bogie:

Are you sure the reg number is correct, the series I am familiar with start UXC? The body shapes look quite accurate with the exception of the roof panel above the doors which is completely wrong. The cycle and fixed wings were both available throughout Junior production and the only mechanical changes I can think of were the introduction of hydraulic power steering instead of air, an upgrade from the 680 to the 680 Power Plus and the option of a SCG semi auto of which I only ever saw one.

Where did you measure the track, it should be to the centre of the tread or to make it easier from the outside of one tyre to the inside of the opposite tyre?