JoaoCaldeira
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 posted on 30/3/06 at 12:19 PM |
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Don't understand MNR Pedal Box
Hi all.
sorry for the english...
I mounted my MNR pedal box but I don't understand how it works.
I understand that I can adjust brake front / rear bias by screwing more or less each of the threaded shafts to each m/c, but I don't understand
the shaft that goes inside the pedal; why does it move?
If I apply the brake pedal both m/c aren't actuated at the same time...
Thanks,
Joao
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Mr G
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| posted on 30/3/06 at 12:30 PM |
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The front/rear brake bias is'nt adjusted with screwing the 'threaded shafts' to each master cylinder - it's adjusted by
turning the 'shaft that goes inside the pedal' thus offsetting the pressure applied to the 'threaded shafts' and altering the
bias 
BALANCE BAR ADJUSTING
HTH
Cheers
G
[Edited on 30/3/06 by Mr G]
Normal is getting dressed in clothes that you buy for work and driving through traffic in a
car that you are still paying for - in order to get to the job you need to pay for the clothes
and the car, and the house you leave vacant all day so you can afford to live in it.
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timf
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| posted on 30/3/06 at 02:39 PM |
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try this thread to see how a bias box should be set up
A prisoner of war is a man who tries to kill you and fails, and then asks you not to kill him."
- Sir Winston S. Churchill, 1952
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JoaoCaldeira
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| posted on 1/4/06 at 08:37 AM |
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Hi guys.
Thanks for the replies.
So If I read correctly, what makes the adjustment is the position of both clevis in relation to the centre of the shaft that goes inside the pedal,
right?
So does the centre of the shaft has to be centred within the pedal?
Because mine (due, I suspect, to weld trespassing to the inside of the brake pedal tube for the balance bar) is offside to the front M/C.
Because of that, the left clevis is screwed all the way...
What does this pics looks like?
Left - front M/C
Reight - rear M/C
Left clevis screwed all the way
Thanks for all your input,
Joao
 
Rescued attachment 06-03-31_20-01.jpg
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JoaoCaldeira
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| posted on 1/4/06 at 08:40 AM |
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another one...
When pressed the pedal pushes the front M/C further than the rear M/C.
Joao
[Edited on 06/4/1 by JoaoCaldeira]
 
Rescued attachment 06-03-31_20-05.jpg
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marc n
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| posted on 3/4/06 at 08:01 AM |
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hi Joao
the pivot bearing should slide side to side in the pedal tube,
best regards
marc
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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JoaoCaldeira
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| posted on 3/4/06 at 11:11 AM |
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Hi Marc.
Many thanks for your reply.
Seems that I have to undo the brake pedal and file the inside of the tube where the balance bar goes...
Joao
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RichieC
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| posted on 4/4/06 at 10:45 AM |
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Does the pivot bearing need to be completely slack inside the tube?
Am I right in thinking the rod needs to be drilled and pinned for SVA? Does anyone have a pic of this done?
Rgds
Richie
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smart51
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| posted on 4/4/06 at 11:05 AM |
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the rod screws through a metal fitting with a circle on the top, see pic above. Mr SVA dolt me to drill through that downwards and put a roll pin in
it. this stops the adjuster bar from turning.
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RichieC
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| posted on 8/5/06 at 10:45 AM |
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Does it matter if the shorter threaded part is biased to the left or right of the pedal box? ie the front or back cylinder.
Surely this is what governs how much bias is available in each direction? Im assuming youd want the most available to the front and therefore the
longer threaded portion offset to the left??
Thank Rich
[Edited on 8/5/06 by RichieC]
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Krismc
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| posted on 8/5/06 at 04:41 PM |
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quote:
hi Joao
the pivot bearing should slide side to side in the pedal tube,
best regards
marc
???oh bollocks, mine is tight in there!!
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
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RichieC
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| posted on 8/5/06 at 04:48 PM |
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Yeh as was mine. Just needed a little work with a file to remove the welding on the inside.
Rich
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JoaoCaldeira
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| posted on 9/5/06 at 07:18 AM |
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I used the Dremel with the small circular sandpaper and cleaned both welds and part of the powedercoating.
Joao
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RichieC
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| posted on 9/5/06 at 07:02 PM |
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quote:
Originally posted by RichieC
Does it matter if the shorter threaded part is biased to the left or right of the pedal box? ie the front or back cylinder.
Surely this is what governs how much bias is available in each direction? Im assuming youd want the most available to the front and therefore the
longer threaded portion offset to the left??
Thank Rich
[Edited on 8/5/06 by RichieC]
As an update, mine had to go shorter threaded portion towards the passenger, with the longer threads that side, it caught on the box when pressed.
Rich
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marc n
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| posted on 10/5/06 at 07:12 AM |
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hi ritchie yep thats the correct way round
please email rather than u2u
direct workshop email ( manned 8am till 6pm )
www.mnrltd.co.uk enquireys to :-
chrismnrltd@btinternet.com
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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JoaoCaldeira
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| posted on 10/5/06 at 07:33 AM |
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I don't know whats wrong with mine (or the M/Cs) 'cause pushing the bias bar to either side makes no difference in which pedal goes first
(always the front one).
I don't have any oil in it, but pushing (by hand) both of the M/C, I need to do a lot more pressure on the rear one to have the same
effect...
What do you think about it? When filled with brake fluid will it normalise?
Thanks,
Joao
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marc n
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| posted on 10/5/06 at 07:43 AM |
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yep with fluid in it will be fine, would recommend not pushing pedal too many times with dry seals as it could damage them
best regards
marc
please email rather than u2u
direct workshop email ( manned 8am till 6pm )
www.mnrltd.co.uk enquireys to :-
chrismnrltd@btinternet.com
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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RichieC
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| posted on 10/5/06 at 07:43 AM |
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Have you got the cylinder actuator rods srewed into the pedals the same amount?
Rgds
Rich
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