gritineye

Nope, that's normal!

What happened next?

Showing off never pays! :red:

Thanks catweazle, memory banks updated.

Thanks croc, I never expected to see such a pure example of what the Americans call "redneck engineering" in the UK, the spacer is a gem as it retains a working bump stop!

and wot may i ask was the certain crowd pleasing stunt at the dorset ? i seem to have missed this :???

Don't know but it may have preceded this motorist pleasing stunt :-D

Hi Cedric, it should give impressive truck/trailer off road performance when you've restored the system, a very interesting concept, can't wait to see it on the off-road course at W&P show. Thanks for the very detailed descriptions, it's got everything, axle articulation and walking beams!

Sounds like you had a good weekend and good news on the walking beams, thanks for the pics croc, all good stuff!

Croc, it's also worth having a look in the steering ram and lubricate it as mine was completely dry and the seal rolled back and forth and bent the retainer back, again you can just drop it down and take the front end off to do this. KUTGW.

If you claim exemption using V112G form and your towing vehicle would ordinarily be subject to goods vehicle plating and testing regulations (which very simplistically is related to vehicle weight) then the most common exemption claimed is under category 30 -

 

"vehicle first used before 1 January 1960" the rest of the clause states "used unladen and not drawing a laden trailer, and trailer manufactured before 1st January 1960 and used unladen"

 

Which seems to imply you can draw a trailer but obviously it must be empty - so your AA man is right in the sense that not many MV owners use their trailers empty

I use my MV trailer to sleep in at shows and my research years ago showed that a "living van" means a vehicle whether mechanically propelled or not which is used as living accommodation by one or more persons, and which is also used for the carriage of goods or burden which are not needed by such one or more persons for the purpose of their residence in the vehicle

A trailer fitted with a fixed sink, cooker (however small) and bed becomes a living van, which as long as only personal possessions are inside is treated as an empty trailer.

:shocked: yea ime came to the conclusion that it was this one

But surely you want a GREEN one, :cool2:

So any one know what Cummins is in LSK 200?

There is a nice red Explorer with an AEC 760 for sale in an auction very soon.....

I reckon Younggun's gagging Mike, give him a clue :cool2:

Or catweasel's been at it, he loves the look of a diesel speedboat!

My mistake Mike, you live and learn, I always thought this (Joe Daws) was a 220 14ltr, whatever it is fills the bonnet nicely!

Also fitted to Scammell Explorers

Isn't the Cummins 220 another good conversion? Several trucks about with them, although good 220s hard to find now.

 

Cummins rule OK :cool2:

I second that, the 14 ltr lumps fill the space and look the part, L10 lumps are a real pain to fit but more good ones are around.

What ever the choice of engine the oil sump position and size is critical for axle clearance, this one looks like it has a front sump and the front spring has a spacer fitted to get clearance, :rolleyes:

"Of course, if you shoe horn a massively more powerful engine of say, 300 BHP, into a Constructor and then run that vehicle at speeds, up to, and over 40 mph you may well experience gearbox and other problems but, hey, it's nothing that can't be explained away as "flawed design"."

Ditto Explorer propshafts!

The reason I'm interested in this is that PGK888 came home with a thrown rear prop. It had even destroyed the substantial frame cross member carrying the centre bearing :shake:. Fortunately the sale included a full set of replacment parts (including cross member) so I have no excuse not to get on with the job. But I am anxious to understand WHY it happens, and will be getting all rotating parts fully balanced before installation.

After a week away I'm pleased to see calm has returned to this thread :-D

Not wanting in any way to stir things up again but just trying to help sort your problem N.O.S. could it be that Scammells designers expected drawbar Constructors to be always ballasted to a set weight and therefore the prop angles would remain almost static on civilian road use vehicles and fifth wheel tractors would do very little light running?

:idea:

Are preserved vehicles ballasted to the correct weight? On reflection I find it hard to believe the geometry was not carefully worked out within tolerances for the intended use. Maybe they weren't meant to run around empty, the torque arms would change the angles considerably.

Thanks 6X6, the problem looks pretty obvious looking at those pics, and there's no give anywhere, it was, in theory, doomed from the start :-(

Have a look at this page for chapter and verse on the subject. http://www.machineservice.com/technical.htm

scroll down to Driveshaft Vibrations

I think you will find it was Stan Wass and his colleague collecting their brand new MOS Constructors which were to be used for transporting tanks on the 50 ton drawbar trailers.

 

Mike

Right again Mike, he drove NGY 593 which was the better one. The other one NGY 592 only made it from Watford to Newark because the center prop bearing went, this kept on happening.

Vibration was always a fault with both of them around 28-30 mph, over 30 all was well until the speed dropped to 30 again, sound like propshafts to me!

Going by the reg nos it would have been 1953 ish

And the better one still lives

Mike, there was an article in the Scammell Owners Club magazine by the chap who collected one of two new military constructors, one was OK but the other had bad vibration problems, it was returned to the works but came out again just as bad! I'll the magazine out and refresh my memory, I think maybe the reg nos. are mentioned.

This one was owned by East Sussex County Council and driven by John Rebbeck, it is shown towing Forceful when he was Petrol powered, not because he was broken down but because John always prefers to arrive at W & P with something dangling :-D

John now owns it and what was once green became blue, and then good taste prevailed and it is now green again :thumbsup:

Thanks for a nice clear explanation. Just one more Scammell gearbox question, how many usefully interchangable parts do the Constructor and Explorer gearbox have in common ? I mean, if one had the job of reconditioning a Constructor gearbox, would an Explorer gearbox in good condition yield up many useful parts ? Cheers. (this maybe a simple question with a more complicated answer but I thought ask it anyway)

As far as I know, (Mike may well know different) everything except the output shaft (mainshaft in Scammell parlance) is interchangeable, hence I re-used the one from my old box. If the old one had been completely unserviceable it would have been a real problem for me, but as it was for my limited use, it was OK.

I don't know about different ratios etc.

The g/box casings are not interchangeable as the transfer box fixings differ.

Explorer is what exactly :???

Scammell Explorer recovering a 432 that has thrown a track, he would have loved to help.

My ladder was bought as new at W & P a few years ago for a tenner, it is almost weightless, and has lugs under the top step to fit into sockets presumably on a vehicle or more likely a plane. Maybe it was made for you but not supplied!

It's great for little kids as I tell them they can get inside if they can move the really heavy ladder, they then of course run around waving it above their head, "look mum, look!"

gritineye do you have the facility to make a copy of the video? I would be more than happy to compensate you for the trouble! :cool2:

 

Thanks,

Duncan

I haven't tried yet, I think it can be done through some camcorders but not the type I have, think I need a video capture card. I have a few VHS that I would like to transfer so I will look into it.