heathrobinson
Part of things
Broken everything
Posts: 848
Club RR Member Number: 111
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Maybe the answer's lots of go, but not too tall a top gear? Keep you in check a bit! If we ever get our 4x4 daf back from having a hiab fitted, I'll have a good squint and see how the vacuum's done on that, as it's got a 6bt in. That's good for running all sorts of gear, and has vac lines out each end for both trailer brakes and tools etc. That'll be getting a little pump work when I have the time.
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I'll just leave this here,
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village
Part of things
Always carries a toolbox. Because Volkswagen.......
Posts: 567
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May 11, 2015 13:03:37 GMT
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It's the first really big back box I've ever had so I spent many hours dreaming how I could mount it at the back of the bed with a chrome tail pipe poking out. anymore of this sort of crazy talk and I will be forced to unsubscribe! There'll be no silencers here, straight pipes FTMFW!!
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"The White Van is strong with this one...."
Chris "Chesney" Allen 1976-2005 RIP
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vulgalour
Club Retro Rides Member
Posts: 7,244
Club RR Member Number: 146
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May 11, 2015 13:06:23 GMT
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That's nasty. Really deliciously nasty.
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,878
Club RR Member Number: 15
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May 11, 2015 16:49:02 GMT
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Currently trying to decipher this We know it's a 5-speed box and we're hoping it's the 0.76 overdrive 5th. Bedford military diffs are a bit hard to discern but with a conservative 2800 rpm and 43 inch rolling diameter tyres plus a 6:1 diff ratio would give me a very theoretical 81mph top speed. Low power and negative aerodynamics will play their inevitable part but if I can cruise a 57-58 on the motorway I will not have the worry about restricted 40 tonners trying to pass me at a snails pace. YAY! On an entirely different note No. 1 Son feels his oil-soaked Reeboks did not get enough attention in the last post so I mention them here. Also we are waiting to see if 6 hours immersion in ATF has any noticeable effect on his athlete's foot. Whatever it is, you will have heard it here first.
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here
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May 11, 2015 18:08:38 GMT
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Not sure about ATF for athletes foot but I recommend repeated emersion in EP90 for weight loss, I feel like being sick every time i get so much as a whiff of the stuff
On a more serious note if the pump ever needs to come off could you get me some dimensions and a rough measure of the taper, one might be of use should I ever manage to put the Dodge 50/ Perkins 6247 powered Range Rover back on the road with a turbo.
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,878
Club RR Member Number: 15
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May 11, 2015 21:57:46 GMT
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Does anyone know anything about the GM Hydroboost where the pressure from the PAS pump is used to assist the brake pressure rather than vacuum or air? As I have a redundant PAS pump it would make some sense.
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here
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edwell
Part of things
Posts: 199
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May 12, 2015 10:45:02 GMT
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Does anyone know anything about the GM Hydroboost where the pressure from the PAS pump is used to assist the brake pressure rather than vacuum or air? As I have a redundant PAS pump it would make some sense. I helped my cousin fit one of these kits to his 68 charger a while back. It just bolted in where the servo would usually go and plumbed in in series with the power rack. I think they source the actual units from OEM applications (probably Ram 2500/3500 cummins diesels), and you pay for the little billet adapter and linkages of the correct size. I'm sure a man of your talents can replicate these cheaper. Not knowing anything about commercial systems and even less about goddess brakes I have no idea if they would be adaptable to fit or man enough to cope. Quick google search returned this, a re-manufactured unit from a 2001 ram 3500 is $210 + $50 if you don't have an exchange.
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glenanderson
Club Retro Rides Member
Posts: 4,280
Club RR Member Number: 64
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May 12, 2015 10:52:46 GMT
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This has got to be worth finding out about, but I still think you'd be better off using the air system from the Daf. Hydroboost would be a good answer if you had no room for the air tanks, and no other use for the air, but you've the rear suspension and clutch that need air, the potential need to run air tools and the starter for the jet engine, and all those free bits on the Daf already.... Just sayin...
Keep us posted.
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My worst worry about dying is my wife selling my stuff for what I told her it cost...
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May 12, 2015 11:53:05 GMT
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Hi, I agree a full air system would be better, in the event of engine failure you would lose the hydraulic pressure and the assistance it offers. With air you would still have the pressure in the tanks to bring the vehicle to a halt. If you had spring brakes on the back then that would be another fail safe from loss of air.
Colin
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edwell
Part of things
Posts: 199
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May 12, 2015 12:55:46 GMT
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in the event of engine failure you would lose the hydraulic pressure and the assistance it offers. Colin They do have a little accumulator on the side of the booster which is supposed to give you a few applications of the brakes if you loose pump pressure, Also if the truck is still moving and in gear then I guess the pump is still spinning? I would just like to add I am in no way endorsing the suitability of these boosters for this application as I am in no way an expert, just passing on the small amount of knowledge I have on the subject. Edit: I was just reading up about the new 2015 Ram 3500 and they apparently have a towing capacity of 30,000 lbs so must have pretty good brakes!
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Last Edit: May 12, 2015 13:02:21 GMT by edwell
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May 12, 2015 13:31:15 GMT
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random but hydraboost was used on cavalier and calibra 4x4 (of all things !) ran off the power steering system with an accumulator, then used hydraulic ram on a clutch pack to "lock" (engage) transfer box to the rear wheels.
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glenanderson
Club Retro Rides Member
Posts: 4,280
Club RR Member Number: 64
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May 12, 2015 14:13:43 GMT
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It's also worth factoring in the Daf's power steering pump runs at a much higher pressure than car ones do. The Cummins Landy mob get them adjusted down for about £75 or so. I'm planning on fitting power steering to the Austin as part of the upgrades, so won't want to mess with the pump. If you're tempted to do the same at some point it's another thing to think about...
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My worst worry about dying is my wife selling my stuff for what I told her it cost...
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,878
Club RR Member Number: 15
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May 12, 2015 14:21:06 GMT
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Some nice people in the States tell me it's not recommended for all-drum brakes. Seems they can burst puny automotive brake drums but I ask myself 'Have they met British Army drum brakes?'. However I keep coming back to this. Do I want an ill-judged brake performance enhancement leading to me ploughing the Goddess up the back of a stationary Micra? The engine cutting out on the way to Goodwood and losing vacuum coming up to a packed roundabout was a wake-up call to the potential effect of the red juggernaut. If I stick with a fully reconditioned set of standard brakes then I'll have to drive within the safety envelope. What to do?
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here
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glenanderson
Club Retro Rides Member
Posts: 4,280
Club RR Member Number: 64
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May 12, 2015 14:34:54 GMT
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I agree with your sentiment.
However, take a look at the brakes on a Bedford MK/MJ. They're pretty much identical to those on your RL, except they are air-over-hydraulic. If you're concerned about things, and want a bit of reassurance, you can see that's the way the factory went.
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My worst worry about dying is my wife selling my stuff for what I told her it cost...
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glenanderson
Club Retro Rides Member
Posts: 4,280
Club RR Member Number: 64
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May 12, 2015 14:37:07 GMT
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Also, you can use the spring apply/air off actuator off the Daf to put the handbrake on. That way, if you start to lose air without realising, the wagon will brake itself.
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My worst worry about dying is my wife selling my stuff for what I told her it cost...
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MaxN
Part of things
Posts: 482
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May 12, 2015 14:40:01 GMT
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If I stick with a fully reconditioned set of standard brakes then I'll have to drive within the safety envelope. What to do? Just look for something modern with a similar weight and power and transplant the brakes from it onto the Goddess. I realise that articulated lorries have Air brakes, which are generally Spring-On, Air-Off and that the Goddess is not articulated (at least yet), but the inherent safety aspect of not being able to lose your brake appeals to me. I'm sure that this will cause all sorts of unnecessary complication, but that is a good thing, yeah ?
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PHUQ
Part of things
Posts: 862
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May 12, 2015 17:07:22 GMT
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Mr Anderson talks sense, in my opinion. No idea why everyone is obsessed with modifying the engine, just because someone on youtube has done it... it's a race car transporter, not a race car for smeg's sake (and it's also an RL, on RL- spec tyres although at least they aren't bargrips!). I'm pretty confident that you'll get the required performance and reliability from the standard spec'd motor, so why meddle? I reckon that's probably your way of thinking anyway
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vulgalour
Club Retro Rides Member
Posts: 7,244
Club RR Member Number: 146
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May 12, 2015 17:23:07 GMT
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^this.
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May 12, 2015 17:40:25 GMT
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Mr Anderson talks sense, in my opinion. No idea why everyone is obsessed with modifying the engine, just because someone on youtube has done it... it's a race car transporter, not a race car for smeg's sake (and it's also an RL, on RL- spec tyres although at least they aren't bargrips!). I'm pretty confident that you'll get the required performance and reliability from the standard spec'd motor, so why meddle? I reckon that's probably your way of thinking anyway Hey .... I resemble that remark ...... Surprised no one has mentioned slamming it and banding the wheels with stretched bargrips ............ As an HGV driver i recommend looking at keeping the Dafs air braking system, if you can incorporate and exhaust brake as well, that will ease the load on your brakes somewhat.
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