MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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limey222
Michael Cubbon
Portland, OR
(129 posts)

Registered:
08/01/2015 12:55PM

Main British Car:
1969 MGB GM 3.4L V6

Pedal travel with HTOB
Posted by: limey222
Date: September 11, 2015 06:55AM

I'm over here in the UK on vacation and I got to thinking about my clutch pedal travel. The pedal travels all the way to the floor which is also the full stoke of the master cylinder. I noticed that the clutch begins to engage at about the half way mark of the pedal travel as I release it. Should I think about installing a pedal stop to reduce the amount of movement as it is quite a stretch to put the pedal all the way to the floor.


Moderator
Curtis Jacobson
Portland Oregon
(4404 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: Pedal travel with HTOB
Posted by: Moderator
Date: September 11, 2015 11:59PM

Yes, a pedal stop would be an excellent idea. In some cases a stop is necessary to keep the slave from hyper-extending and consequently damaging its seals.


limey222
Michael Cubbon
Portland, OR
(129 posts)

Registered:
08/01/2015 12:55PM

Main British Car:
1969 MGB GM 3.4L V6

Re: Pedal travel with HTOB
Posted by: limey222
Date: October 06, 2015 09:28AM

Came up with an interesting pedal travel stop. I removed the clutch master cylinder and tapped the bottom hole with a 3/8" coarse tap. Then I reinstalled the cylinder using a hex head bolt on the inside of the pedal box with a locknut. by adjusting the "stick out" of the bolt I can restrict the pedal travel. The bolt head works against the upper part of the pedal above the pivot point. A little adjustment goes a long way because of the pedal ratio.


DiDueColpi
Fred Key
West coast - Canada
(1259 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: Pedal travel with HTOB
Posted by: DiDueColpi
Date: October 06, 2015 12:17PM

Be careful that you don't punch through the pedal box and break the ears off of your master cyl.
There's a huge amount of leverage there.


limey222
Michael Cubbon
Portland, OR
(129 posts)

Registered:
08/01/2015 12:55PM

Main British Car:
1969 MGB GM 3.4L V6

Re: Pedal travel with HTOB
Posted by: limey222
Date: October 08, 2015 02:39PM

Fred,

I hear you but I have a jam nut up against the pedal box wall. I would have to completely distort the wall to risk fracturing the flange.


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