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Stone

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Posts posted by Stone

  1. Engine speed will affect voltage but also alter the frequency so I assume you'd want to be leaving that alone.

     

    If your genny tester is measuring peak voltage it would be RMS voltage * sqrt(2); 220Vrms (Euro standard) would measure as 311V so not too far out...or your meter could be out of calibration ;)

     

    Did you measure with the load applied? The voltage isn't that well regulated (they were designed to run with a fixed, near-constant load always applied) so if practical you should be measuring while your 1kW grinder is running - that'll give you much more of an accurate idea.

     

    I'm very glad they work! :D

     

    Stone

  2. Thanks Clive, that's just what i was after :) MAPPS was 'Mobile Access to Ptarmigan Packet Switch' as in a data terminal to hook into a Ptarmigan network. I heard there are a couple of Pinz vehicles hanging around waiting for someone to think what to do with them so I might get lucky :) (they'd be just the ticket for something at work)

     

    Cheers

     

    Stone

  3. Maybe the long gearstick is to accomodate the highest seat position (head out of hatch)? It looks very uncomfortable though!

     

    I bet you could register one, not necessarily lying about the width but just blinding them with science a bit maybe? Don't ask Neil for help ;) If you filled in *all* the fields on the form and took it to a local office in person you might have more chance.

     

    An MT-LB is only 6cm wider than a 432 and there are tons of those on the roads. Fold the wing mirrors in ;)

     

    Stone

  4. If you speak Russian there's a great video on Youtube, nice knife-edge!

    Something went wrong...

     

    I can't grab more than the odd word here and there, but 4 pedals? And what's going on with that crazy gear shift? :confused:

     

    Stone

  5. No, you're right, it's an MTLB with an upgraded turret, I just meant to copy the flamboyant paint scheme :D

     

    Out of interest are you buying MTLB, MTLBu (extra road wheel, uglier) or MTLBv (wide snow tracks)? I think they're beautiful little things but have nowhere to put one! Would love to see one greenlaning...

     

    Stone

  6. No, it's a Pinzgauer 718 (:cool2:), but I was trying to work out what the last letter of the Pinz designation would be - the website the pic is from just says 'Pinzgauer with box body of Royal Signals'.

     

    uk_tum_hd_pinzgauer_718-001.jpg

     

    Is the box Ptarmigan? The whole system was shut down in July so I wanted to find out if these vehicles were going to be backloaded or just have the boxes discarded and replaced with FALCON or whatever. I know someone at 22 Sigs I can ask, but I still want to know what the truck is called!

     

    (There's a Pinz version called DS for 'dismountable shelter' - if it's one of those I'd be happy)

     

    Stone

  7. You can get thermal lightsticks as well - used for marking helicopter landing sites, among other things. The Americans were using infrared lasers for aiming heavy weaponry for a while (assume they still do) - can be seen through passive night vision devices but not by the naked eye.

     

    Stone

  8. I just found an older post from the Stolly group on Yahoo dealing with this issue. In it Richard N. says there should be an earth from under one of the thumb screws that clamp the instrument into the dash off to a known good earth. From memory only one (1) of the thumbscrews has been fitted (there should be 3) and there is no earth lead from it. What a surprise!! :argh:

    Does it not ground through the chassis? Just remembered our Bedford manual mentioned the refueller variant had insulated earth returns, does this maybe hark back to the Stolly's UBRE days?

     

    Stone

  9. We disconnected the senders on the tanks - and the gauge still swung to full deflection when power was turned on so the thinking right now is it might be an earthing issue on the fuel/oil level gauge.....

    Any idea how the gauges work internally? If they're of the type with a small bimetallic strip that is heated by battery current to move the needle, an internal short could cause this. In fact reading this it suggests that 0V going into the gauge would normally make it read full, so somewhere along the system something's probably shorted to the chassis. I assume it's not separately wired earth return...and that replacing the gauge and sender aren't an option. If you had spares you could 'just' swap them over to see if it's the wiring at fault. The sender might be stuck, but I guess not since you disconnected them at the tank end, so the fault is probably hidden deep in the middle somewhere :shake:

     

    I'd probably progress by taking the gauge out of the instrument cluster and applying a varying voltage to it at limited current to see if I could get it to move in a reasonable way. If it works it's the wiring, and I'd probably run a new one rather than try and troubleshoot the old one!

     

    Slog is not over yet - I still have what's turning into a VERY long letter to write to a certain company..... :sweat:

    Good, God knows they deserve one...

     

    Stone

  10. The dodgy instrument is the combined fuel/oil level gauge - it swings to max deflection when the power is turned on - even with the tank senders disconnected. So we've not even got a rough idea of what's in the fuel tank... Seriously scary.....

    Give it a tap with a spanner ;)

     

    (or cup hands around the filler neck and stick your eye to it while rocking the vehicle like one of the contractors we got to drive our Bedford - this was after he tasted our coolant to check antifreeze concentration :shake:)

     

    Glad to hear it's all sorted, it's been a long slog!

     

    Stone

  11. They look like they have a pretty high centre of gravity - any cases of them falling over if provoked ?

    I guess most of the armour is down low since that's where the biggest threat is.

     

    Not that it would probably do much good with the size of IEDs these days. Did you see the pictures on the news yesterday in which 6 Italians (and sadly 10 Afghan civilians) lost their lives? They were in Iveco LMVs:

    iveco_lmv.jpg

     

    The force of the blast (suicide car bomber drove into their convoy) blew one vehicle on its side and demolished the other - there was a shot of what looked like the engine in the middle of the road. I've had the chance to have a poke at the British version (the Panther) and they are rock solid vehicles - inches of armour all over the place - but there's no way anything can stand up to that size of direct attack and remain useful levels of mobility.

     

    Most of the Afghani IEDs are made of surplus Russian 155mm arty shells - looking at the wiki page for the USA equivalent it tells you how much TNT is in each shell. The Casspir is designed to protect against 14kg of TNT hitting a wheel - the sum

     

    (14kg / (0.158 * 43.2kg)) = 2.05

     

    means you only need two of these shells next to each other to potentially defeat one! The Taliban aren't stupid, they know this. They have plenty of shells, all they have to do is tie more of them together until they get the result they want :(

     

    As for the original question, you could try here. I hope you've got your chequebook out!

     

    Stone

  12. neil what do you mean 'float the crank'....?

    The crankshaft sits on a liquid bearing of oil, which drains back into the sump(?) when the engine's stopped. Until the crank is sat in the right place resting on its layer of oil, it will severely mangle the engine if run...so you have to run the electric oil pump long enough to float the crank before you can start it. Otherwise you'll be buying a new engine before too long!

     

    Do I win a prize? :D

     

    Stone

  13. Hi all,

     

    How do you guys go about finding places that stock NOS or reproduction parts? Do you just go by word of mouth and private sales?

     

    How about finding people to do the bigger jobs or things you can't do with the facilities / skills you have to hand?

     

    Our problem is that as our Bedford is company-owned, we are very limited as to what we can do on it ourselves - for anything more serious than pumping up the tyres we can't guarantee the safety of any work we've done without exposing the company to the risk we've messed it up ;-) Ideally we'd find someone who could do odd maintenance and servicing nearby, but who to choose? Would they be able to get parts etc? We have a front hub seal that's weeping oil onto the tyre: minor job for you lot but we can't do it :-(

     

    Any ideas gratefully welcomed!

     

    Stone

  14. TRUCK, 4t, 4x4, BEDFORD MJ[/font]

     

    ALL VARIANTS

    TECHNICAL DESCRIPTION

     

     

    REPRINTED INCORPORATING AMDT No. 1"]

     

    TRANSFER BOX

    GENERAL DESCRIPTION

    1. The transfer box (Fig 1) is manually controlled by two levers in the cab and provides a direct drive to

    the rear axle for two wheel drive, or a direct drive to both axles i.e. four wheel drive high, or a two to one

    reduction to both axles (four wheel drive low). On some vehicles, the transfer box incorporates a power

    take-off which is controlled by a separate lever.

    2. The input pinion (1) is supported at its forward end by a ball bearing (14).

    3. The rear end of the mainshaft (5) and the front and rear ends of the layshaft (7) are supported by ball

    bearings and the front of the mainshaft is carried by a roller bearing (2) in a counterbore in the input

    pinion. Gears dogged to the mainshaft and layshaft are in constant mesh.

    4. The layshaft driven gear (11) is carried on needle rollers (10) and is in constant mesh with the input

    pinion.

    5. The front end of the layshaft is splined to engage a front wheel drive clutch (12). Internal teeth on the

    clutch engage external teeth on the coupling flange when in four wheel drive.

    6. A drive for the speedometer is provided at the rear of the transfer box.

    Fig 1 Sectional view of transfer box

     

     

    mj_transferbox.png

     

    Does that help? :)

     

    Stone

  15. Funnily enough - this is one of the (many) places I've never been to yet!

    I keep meaning to go - but being out of work, although it means I have the time also means I don;t have the funds..... :(

    I hope you like Saxons :rofl:

     

    Stone

  16. Washing is not so much effective...why?

    Because before you manually open the fosset with your dirty hands, wash your hands clean and then touch the dirty fosset again...

    Not in a Portaloo, the water is pumped into the basin in insipid squirts by a foot pedal on the floor. If the people who hired them bothered to fill the water tank, that is...:n00b:

     

    Stone

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