radiomike7

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?

Scrap metal, brass tubes.

Don't forget wheelbase is front axle to centre of rear bogie not the rear axle. The AEC which was developed in to the 6x6 was a pre war Marshall.

Mike, I can help with wheels, they are 20" in diameter and 10" wide and consist of two bolt together sections, one is about 3" and the other about 7". the front wheels are fitted with the 3" section on the outside while the rears have the 7" section on the outside. The two sections are held together with 20 bolts and the wheels are retained on the hubs with 10 studs. There are also 4 additional holes in the rims to clear the nuts that retain the drums. Tyres were usually 14.00x20 although I have seen a Matador specification which mentions 13.5x20

I thought that might be the case, it is easy to inadvertently click on the smileys.

I would add that I do not condone trespassing on private land and that the photos were not taken by myself or anyone I know.

Agreed, both Airfix and Milicast have models of the 20 ton trailer. http://www.milicast.com/shop/product.php?productid=2561&cat=18&page=3

Not sure if we know about this site, not seen it myself before. Check out the ex RAF Constructor. https://www.derelictplaces.co.uk/main/misc-sites/35681-truck-stop.html#.WkYdGUx2sy8

https://www.bidspotter.co.uk/en-gb/auction-catalogues/timed/sanderson-weatherall/catalogue-id-san10223

Rob, the most likely explanation for the yellow paint scheme is that it was used on an airfield at some time. My RAF Explorer was originally RAF blue, then yellow and finally IRR when transferred to the R.E.M.E.

Confirmed by trucksplanet, unless they both have the wrong information: https://www.trucksplanet.com/catalog/model.php?id=1149

I am almost sure the fitting is the same, takes a small glass lens inside and the larger lens on the outside. Coincidentally I have a set on ebay atm with a base also shown, check it out to see if it is the same as yours. Item 201998173986. The larger lens were retrofitted to most of the heavy vehicles and provide a far better light.