Brake pedal adjustment

Technical advice Q&A

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jingleycatjaguar
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Joined: Mon Mar 12, 2012 8:05 am

#1 Brake pedal adjustment

Post by jingleycatjaguar » Sat Mar 08, 2014 12:10 pm

Series 1 4.2 1966 brake pedal adjustment .
Despite everything on the brakes being BRAND NEW and properly bled, I still am not happy with the feel of the brakes. I wonder if the position of the brake pedal will affect the feel. I know the pedal is adjusted by the 1/4 unc setscrew and nut on the pedal housing. Do I just set it untill the pedal is level with the clutch pedal or am I missing something? If the setscrew is too far screwed in, will it limit the stroke of the master cylinder ?
All help gratefully received as I MUST get the car back on the road this yea.

Thanks
Steve

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Moeregaard
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#2

Post by Moeregaard » Sun Mar 09, 2014 1:05 am

Steve, by any chance was your pedal box ever dismantled? The brake pedal is connected to the pedal shaft via splines, and if the "clocking" is incorrect it is possible to end up with an incorrect pedal height. I know this from experience :oops:
Mark (Moe) Shipley
Former owner '66FHC, #1E32208
Former owner '65FHC, #1E30036

Planning on getting E-Type No. 3 as soon as possible....

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ChrisC
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#3

Post by ChrisC » Tue Mar 11, 2014 1:48 pm

I recommend using the splines on the brake pedal to get the pedals at the same height and only use the screw for any fine adjustment.

Trouble is its a pain to keep taking the pedal box apart so its best to set the pedal height where you want them when the whole unit is on the bench
1964 FHC 4.2
Etype restoration blog http://connor.org.uk

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jingleycatjaguar
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Joined: Mon Mar 12, 2012 8:05 am

#4

Post by jingleycatjaguar » Sun Mar 16, 2014 8:17 am

Hello and thanks for the replies. They confused me re the splined shaft untill I consulted the parts list.
I have a 2+2 which is totally different to the OTS and FHC.
So now thats sorted does anyone know how to adjust the pedal?

Steve

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abowie
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#5

Post by abowie » Mon Mar 17, 2014 12:07 am

ChrisC wrote:I recommend using the splines on the brake pedal to get the pedals at the same height and only use the screw for any fine adjustment.

Trouble is its a pain to keep taking the pedal box apart so its best to set the pedal height where you want them when the whole unit is on the bench
If you loosen the locking bolt and tap a screwdriver into the slot in the pedal you can then ratchet the pedal around on the shaft.
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1979 MGB (supercharged).
Adelaide, Australia

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stangraff
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#6 Re: Brake pedal adjustment

Post by stangraff » Wed Jul 22, 2026 3:41 pm

There are few series one videos on rebuilding or readjusting the pedal boxes for the years '65 thru '67. I couldn't find any. I recommend taking the whole box assembly out and working on it from the bench. Doing any adjustment while the box is installed is almost impossible. There are plenty of videos for the series two pedal box which is totally different than the series one. Btw, trying to adjust the brake pedal play while the box is installed in the car will drive you nuts. Yes, yes, draining all the fluids is a royal pain....but not a tenth (actually, not a hundredth) the pain of trying to work on an installed box. Drain the fluids, pull the box...adjust..rebuild....and reinstall. Good luck...haha.

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bitsobrits
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#7 Re: Brake pedal adjustment

Post by bitsobrits » Thu Jul 23, 2026 12:37 am

For large pedal position changes on these early pedal boxes, I absolutely agree the best way to approach this is to remove the pedal box. I managed to do it in situ on on my first E Type, but was young and agile then. On my current car, when dialing in the pedal heights, it took two tries to get things to my liking. It occurred to me during the 2nd time around to just install an adjustable pushrod which can be changed from the engine compartment (i.e. not locked into the MC).



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Steve
'65 S1 4.2 FHC (early)

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