N.O.S.

The photo in the article does show the tractor passing an apparently empty lay by…...

I pull over with a slow vehicle at every opportunity, especially when you don't know when you can next pull over.

Two problems which often arise:

1) when some idiot won't overtake when it is perfectly safe to do so, thereby causing unnecessary chaos.

2) when an idiot driving slightly faster than you appears behind with 100 cars in tow - he gets past and leaves you with an instant line of cars behind you, who is then seen as the culprit. Often a police car appears at that very moment…….

Welcome Stephen,

Don't mind Robin - he's from just outside Pedanticville, Canada :-D

Me? I just hang out in my own imaginary world :banana:

They are both front axles with central differentials using two equal length short tubes and are narrower than the truck. At least that is how it looks to me. I've not been able to compare to an RL.

Iain

Aha - I wondered how they narrowed the axle without using narrow axle-specific parts - reckon you've got it right Iain.

Just a thought, but it looks a like an Eager Beaver hub.

 

Iain

Which if I'm not mistaken was an RL unit with shortened axle tubes?

Re. GMC servo - here is the current info from VOV website (couldn't access it on mobile device this morning):

http://vehiclesofvictory.com/buying-selling/reproduction-to-parts/

[quote name=Petelgv1;470484....

It does seem strange that when I open the air cylinder rod' date=' I can get gears.

.......[/quote]

Certainly points to simple adjustment issue with linkage from pedal, as if you push the air shaft with a bar it will almost certainly be moving the clutch release arm just a little more than the pedal linkage can. Even a tiny adjustment can make a big difference.

Interested too, as was thinking of replacing the autovac unit on my GMC 352 with a modern unit.......... Anyone done the same ?

Even worse because there are 6 cylinders to fill which means a hefty unit. Which is how I came to start looking at alternatives to the GMC hydro vac. Any original vacuum hydro vacs, the likes of Clayton Dewandre etc seem totally extinct.

Only suitable alternatives I ever found were new units offered specifically for the GMC by I believe www.vehiclesofvictory.com the Chevrolet and GMC site. Looks like the parts section of the site is no longer operating (there was a rumour the owner wanted to sell, I had some parts last year from him). Try searching on G503 for more information.

In any case getting one shipped over was more costly than getting one overhauled in UK, and also a question over future parts / service availability in UK.

Plenty of air over hydraulic units around, although many of those for 7.5t 4 wheel trucks may not be big enough - but others with suitable capacity are certainly available at a cost. But this means running an engine-driven compressor.

Maybe someone can offer better news?

That website linked from the ebay item you showed is quite useful, giving typical cylinder bores - but not stroke.

Even if your Humber cylinders are similar bore, some older vehicles may have longer stroke wheel cylinders, in which case it may not push enough fluid?

Ian, it is essential to choose one with sufficient capacity, i.e. it must be able to pump the same volume of fluid that the cylinders require.

To take your example - are the 4 x wheel cylinders on your Humber bigger than those on a Ford Cortina? I would have thought so, in which case that servo will probably not have sufficient capacity to fully actuate the Humber cylinders.

I would imagine something designed for a Land Rover could be a better choice, but you need to check that the diameter / stroke of the cylinders of the vehicle it is designed for are at least the same as the Humber.

Tony

Interesting, Robin.

Here's a very rare version of the Royal Corps of Transport card, which was pulled when the Army realised the vehicle featured was ideal for covert roles - hence need for zero publicity:

The Yanks are here!

Looks about the same extra needed on LHS as a Scania 8 litre, Andy :thumbsup:

The new reservoir simply becomes the space within the master cylinder used as a reservoir. You only need some space in the top of the new reservoir, same as with the master cylinder, so no problem.

Have done this with very remote and inaccessible reservoirs in brake master cylinders on wheel loaders.

I seem to recall H Wade was recently told by Past Parts that certain replacement brake cylinder seals are only suitable for dot4 (or was it dot5?) :blush: This could well be due to the type of material which has had to be used to replicate these seals.

Stranger things than that have happened on here before! :shocking:

Ask Nick Johns to repost it - it was most useful.

Just to confirm, Trevor - the top photo (of the SWB truck) shows a FWD as supplied in timber tractor form?

Some great detective work you've done on these trucks!

Hi Richard, I should have known you would be the one to come up with the answer to this. I wonder what the reason was for this mod, I would have thought that a crawler gear would have been almost essential when hauling artillery off road with a vehicle which lacked a 2 speed transfer box.

Totally agree, Degsy.

No point whatsoever in blanking off 1st gear (or crawler or highest ratio) other than to be bloody-minded :red:

I would blank off top gear (or 5th, or lowest ratio) if I wanted to reduce maximum speed for safety reasons.

I suppose it follows that those of us who change up from 4th to 3rd would be compelled to describe 1st as top gear, whilst others who change down from 4th to 3rd would have to regard 1st as bottom gear.

But we all know what we mean :drive:

Just bought a pair from this chap ! Brilliant service !

Ooh - is it getting close to Daisy Day then? :banana:

Re. pressed plates - does anyone do the old style font or are they all the later style letters / numbers?

If nothing else it might encourage someone to finally get around to casting new engine blocks

Don't forget the essentials!

Worth the effort - really captures the "weight" of the real thing.

Well done!!!!

Why does the organiser have to grasp the concept of a social event? It may be to you, fair do's, but to them the show has to be a paying prospect otherwise there is not much point in putting it on, same for the traders too. Try walking around as a member of the public, you may see it in a different light. It wouldn't be much of a show without your "by product"

How about:

Because the organiser relies on the social gathering of MV owners and enthusiasts to provide the free spectacle that the public pay to come to see.

Without the social draw for MV owners the organiser would likely end up having to pay MV owners to bring their MVs in order to provide the spectacle for the public.

There should be an ENVY button….. :thumbsup:

…... if the comment of if you can't attend for all five days , don't bother entering applies I fear there will be a fair shortfall of enthusiasts. Has anyone tried calling to speak to the powers that be, to clarify ?

I suspect the 'for 5 days' thing is a turn of phrase which does not tie up exactly with the conditions imposed on the website and application form. The only restriction appears to be on staying once you've arrived until 06.00 Sunday.

For what it's worth, I've had a first look at the website and application form, and would make the following observations:

1. "Entry to the site will be from Friday 15 July 2016".

Note from Friday prior to show - the inference is that no other restriction is imposed on entry, other than no vehicles allowed on / off site between 08.00 and 18.30. So you should be able to turn up between 18.30 and 08.00 on any day from Wednesday Tuesday up to and including Saturday (before 08.00).

If in any doubt I would simply contact them and ask them to confirm I can get access with my MV between 18.30 and 08.00 the following morning on my chosen day of arrival (e.g. Friday evening?). This will confirm the position once and for all.

2. "YOU WILL NOT BE ALLOWED TO PACK UP AND LEAVE SITE UNTIL SUNDAY MORNING 06:00AM"

This a somewhat forceful/ impolite (and as suggested earlier probably illegal and unenforceable) request for all MVs which have arrived prior to 08.00 on Saturday to remain there until Sunday at 06.00.

If it had been worded "please, please, stay until 06.00 Sunday", would anyone be offended or want to be uncooperative with the organisers? Who knows, maybe they're planning something special for Saturday evening and don't want a camp breakdown in full swing?

On the other hand, what would be a fair attendance fee to charge the organisers per day for a WW2 Jeep?

Umm - err - hummer - bummer.