The load sensing valve on my Vigo doesn't seem to make a difference to my breaking ability. I have essentially set it up max on an extended threaded rod with no effect. Is this a common symptom or issue?
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Vigo Load sensing valve working?
- Mornes
- Low Range 4WD
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- Town: Roodepoort
- Vehicle: Hilux 4.0 DC 4x4 AT
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Vigo Load sensing valve working?
Morne' Smuts
Toyota Hilux 2007 - 4.0 DC 4x4 A/T: TRD Supercharger, OME Suspension, Outback Canopy, 29Mhz Radio, 32 BFGR Tyres, Unichip, Echo 4 Trailer, Duel Battery System, Snorkel, ARB Bumper
Toyota Hilux 2007 - 4.0 DC 4x4 A/T: TRD Supercharger, OME Suspension, Outback Canopy, 29Mhz Radio, 32 BFGR Tyres, Unichip, Echo 4 Trailer, Duel Battery System, Snorkel, ARB Bumper
- Mud Dog
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Re: Vigo Load sensing valve working?
What makes you think it's not working? What do you typically carry in the rear full time.
Remember this, most of the braking (on forward movement) is achieved through the front wheels and less brake fluid pressure is apportioned to the rear in a standard set up otherwise the rear wheels would lock up when braking. The LSPV is there to allow more hydraulic pressure on the rear when there is a load.
From your avatar pic I can see that there is a canopy. Although not much, it does add some weight - what do you carry inside. More importantly, I see the you have larger tyres - the increased diameter gives the wheels more leverage against the braking force, front and back. The tyre compound, width of the tread and road surface also plays a huge part in whether or not the wheels will be able to lock up under braking. Have you raised the suspension?
So it could be that the LSPV is fully open but because of some or all the above factors there is just not enough braking power to lock the rear wheels.
That is all assuming that your braking system is in optimal working condition. If the rear drums or shoes are glazed it would also have a big influence as does the compound of the brake lining.
If your problem is one that the rear wheels are indeed locking up, then you are adjusting into the fault rather than against it by extending the length of the arm, thus making the problem worse.
Remember this, most of the braking (on forward movement) is achieved through the front wheels and less brake fluid pressure is apportioned to the rear in a standard set up otherwise the rear wheels would lock up when braking. The LSPV is there to allow more hydraulic pressure on the rear when there is a load.
From your avatar pic I can see that there is a canopy. Although not much, it does add some weight - what do you carry inside. More importantly, I see the you have larger tyres - the increased diameter gives the wheels more leverage against the braking force, front and back. The tyre compound, width of the tread and road surface also plays a huge part in whether or not the wheels will be able to lock up under braking. Have you raised the suspension?
So it could be that the LSPV is fully open but because of some or all the above factors there is just not enough braking power to lock the rear wheels.
That is all assuming that your braking system is in optimal working condition. If the rear drums or shoes are glazed it would also have a big influence as does the compound of the brake lining.
If your problem is one that the rear wheels are indeed locking up, then you are adjusting into the fault rather than against it by extending the length of the arm, thus making the problem worse.
When your road comes to an end ...... you need a HILUX!.
Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
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And be yourself ..... everyone else is taken!
Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!
- Mornes
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Re: Vigo Load sensing valve working?
Great details here.
I have fitted these larger tyres (285 70 17) recently and understand that the larger inertia will affect braking, but the problem stems from before this.
Suspension is indeed raised by approx 50mm.
I have an aluminium canopy and 70 liter fridge mounted permanently in the back.
Brake linings should be ok as they were replaced less than 10 000km back by agents.
I have never seen lock up in the rear which essentially leads me to believe that my rear isn't assisting as much as it should.
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I have fitted these larger tyres (285 70 17) recently and understand that the larger inertia will affect braking, but the problem stems from before this.
Suspension is indeed raised by approx 50mm.
I have an aluminium canopy and 70 liter fridge mounted permanently in the back.
Brake linings should be ok as they were replaced less than 10 000km back by agents.
I have never seen lock up in the rear which essentially leads me to believe that my rear isn't assisting as much as it should.
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Morne' Smuts
Toyota Hilux 2007 - 4.0 DC 4x4 A/T: TRD Supercharger, OME Suspension, Outback Canopy, 29Mhz Radio, 32 BFGR Tyres, Unichip, Echo 4 Trailer, Duel Battery System, Snorkel, ARB Bumper
Toyota Hilux 2007 - 4.0 DC 4x4 A/T: TRD Supercharger, OME Suspension, Outback Canopy, 29Mhz Radio, 32 BFGR Tyres, Unichip, Echo 4 Trailer, Duel Battery System, Snorkel, ARB Bumper
- Mud Dog
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- Real Name: Andy
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Re: Vigo Load sensing valve working?
Ideally the wheels should never lock up Morne. Since I'm old school and don't always immediately relate to newer tech, I failed to recognise that your model is fitted with ABS. This of course will also prevent lock up.
Here's the thing ... the rear brakes must be working but your question is how effectively. To find out you could take it past an AA test station, roadworthy centre or brake specialist that have a "rolling road" which can measure the braking force on each wheel. Then you'll know for sure. If you're an AA member they might even do the test for free but either way it shouldn't cost too much and it will either give you peace of mind or identify a problem.
I'm no ABS fundi, but if there is a way to disconnect the rear ABS units, you could do a basic test on gravel and then a harder surface to see if you can get the rear to lock up without ABS. However, brakes are a critical component, so I would rather pay the couple hundred sheets and have a professional assesment.
Here's the thing ... the rear brakes must be working but your question is how effectively. To find out you could take it past an AA test station, roadworthy centre or brake specialist that have a "rolling road" which can measure the braking force on each wheel. Then you'll know for sure. If you're an AA member they might even do the test for free but either way it shouldn't cost too much and it will either give you peace of mind or identify a problem.
I'm no ABS fundi, but if there is a way to disconnect the rear ABS units, you could do a basic test on gravel and then a harder surface to see if you can get the rear to lock up without ABS. However, brakes are a critical component, so I would rather pay the couple hundred sheets and have a professional assesment.
When your road comes to an end ...... you need a HILUX!.
Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!
Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!
- Mornes
- Low Range 4WD
- Posts: 151
- Joined: Wed Oct 01, 2008 8:20 am
- Town: Roodepoort
- Vehicle: Hilux 4.0 DC 4x4 AT
- Real Name: Morne
- Location: Roodepoort
Re: Vigo Load sensing valve working?
Thanks Mud Dog
Sent from my SM-G950F using Tapatalk
Sent from my SM-G950F using Tapatalk
Morne' Smuts
Toyota Hilux 2007 - 4.0 DC 4x4 A/T: TRD Supercharger, OME Suspension, Outback Canopy, 29Mhz Radio, 32 BFGR Tyres, Unichip, Echo 4 Trailer, Duel Battery System, Snorkel, ARB Bumper
Toyota Hilux 2007 - 4.0 DC 4x4 A/T: TRD Supercharger, OME Suspension, Outback Canopy, 29Mhz Radio, 32 BFGR Tyres, Unichip, Echo 4 Trailer, Duel Battery System, Snorkel, ARB Bumper