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Rossa 2 pedal box 
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Joined: Wed Oct 06, 2010 10:48 pm
Posts: 42
GTM: Rossa
Post Rossa 2 pedal box
Hi all,

Still plodding away on my GTM build when I get 5 minutes. Having recently spent the last few trips to the garage under the dash removing the pedal box and welding the cut-into-3-pieces-and-bolted-loosely-back-together clutch pedal into one piece, I've noticed now its all back in that both the clutch and brake pedals are hitting the bulkhead when fully depressed.

I am concerned this is happening before the end of the master cylinder piston travel, and therefore won't give me full function of the clutch and brakes. It will be worse once sound deadening and carpets are replaced. Assuming the holes for master cylinders etc have been drilled in the correct place, is there anything else I should look out for as incorrect?

Can anyone with a Rossa2 comment/help?

Thanks in advance. Nathan.


Thu Sep 15, 2016 1:58 pm
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Part built GTM
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Joined: Mon Jul 06, 2015 8:26 pm
Posts: 124
Location: Chorley, Lancashire
GTM: K3
Post Re: Rossa 2 pedal box
Just a few thoughts:

The brake pedal will only travel a couple of inches the stop as when the system is bled the brake pedal travel is , well should be minimal.
When bleeding the master cylinder , the brake pedal would go all the way to the floor, once bled the pedal was rock hard about 2-3 inches of travel.

Rossa 2 with mini engine??

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Thu Sep 15, 2016 4:58 pm
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Joined: Sun Feb 28, 2016 12:04 am
Posts: 43
Location: Rainford, Lancashire
GTM: Rossa
Post Re: Rossa 2 pedal box
Hello Nathan,

I agree with bubbleless, once the systems are bled up there will be a lot less travel in both pedals.

I can have a look on mine tomorrow for you and take a few photo's if you like?

@bubblesless, just noticed you are nearby in Chorley! I am over in Rainford, have you got a Rossa?

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Thu Sep 15, 2016 5:24 pm
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Joined: Wed Oct 06, 2010 10:48 pm
Posts: 42
GTM: Rossa
Post Re: Rossa 2 pedal box
Thanks for the replies.

I can't say I noticed the touching with the systems bled so it makes sense. I shall await the arrival of my banjo fittings and get on with it!

Sorry for confusion - Rossa 2 as in the MK2 body work on the a-series 'chassis' - not a K3.


Fri Sep 16, 2016 10:57 am
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Joined: Mon Jul 06, 2015 8:26 pm
Posts: 124
Location: Chorley, Lancashire
GTM: K3
Post Re: Rossa 2 pedal box
With the clutch ,This is all classic mini not verto clutch don't forget the throw out adjustment (7/16 bolt under the clutch arm) and the free pay adjustment big nuts at the bottom of the clutch arm.

see here for adjustment and possible wear in the arm and pins etc

http://www.7ent.com/pages/article-easy-pre-verto-clutch-adjustment.html

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Car has a high power to weight ratio and is really quick...........


The owner isn't


Fri Sep 16, 2016 11:26 am
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Joined: Wed Oct 10, 2007 7:18 pm
Posts: 165
Location: HUNTINGDON,CAMBS
Post Re: Rossa 2 pedal box
Are you using extended piston rods in the master cylinders?
The GRP bulkhead is a lot thicker than the mini sheet metal.

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Alan Britton
HUNTINGDON
CAMBS
PE26 2SY

rossabitz@btconnect.com


Mon Sep 19, 2016 4:20 pm
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Joined: Sun Feb 28, 2016 12:04 am
Posts: 43
Location: Rainford, Lancashire
GTM: Rossa
Post Re: Rossa 2 pedal box
rossabitz wrote:
Are you using extended piston rods in the master cylinders?
The GRP bulkhead is a lot thicker than the mini sheet metal.


Were these extended rods unique to the Rossa kit or from some other vehicle Alan?

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Tue Sep 20, 2016 1:28 pm
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Joined: Wed Oct 06, 2010 10:48 pm
Posts: 42
GTM: Rossa
Post Re: Rossa 2 pedal box
Alan,

Now you have me worried. Are extended piston rods a thing? I hadn't given their length any thought but now you mention the thickness of the fiberglass i suppose it would differ to the mini bulkhead.

Please clarify. I could pull out one of my newly installed master cylinders to compare to the old but I would prefer not too!

Nathan.


Tue Sep 20, 2016 4:50 pm
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Looking like a GTM

Joined: Wed Oct 10, 2007 7:18 pm
Posts: 165
Location: HUNTINGDON,CAMBS
Post Re: Rossa 2 pedal box
Hi
I don't know if they were part of the Rossa kit but I
have some in stock at a fiver each.
I don't know how the length compares to standard.

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Alan Britton
HUNTINGDON
CAMBS
PE26 2SY

rossabitz@btconnect.com


Tue Sep 20, 2016 5:40 pm
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Joined: Sun Feb 28, 2016 12:04 am
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Location: Rainford, Lancashire
GTM: Rossa
Post Re: Rossa 2 pedal box
Out of curiosity now, I am going to strip down one of the old cylinders I have to see if there is a difference! :lol:

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Tue Sep 20, 2016 8:40 pm
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Joined: Wed Oct 06, 2010 10:48 pm
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GTM: Rossa
Post Re: Rossa 2 pedal box
Alan, it seems you were on to something. I have compared a standard mini clutch master cylinder with the one that came of my GTM. It would appear that the plunger rod is in fact longer! I assume as you can get rebuild kits for the master cylinders, they are fairly easy to strip and swap?

Image

It does mean I have to remove my lovely new cylinders though. Anyone else ever get that 'one step forwards, two steps back' feeling?

Image


Sat Sep 24, 2016 10:00 pm
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Joined: Wed Jul 31, 2013 11:47 am
Posts: 881
Location: Kano north Nigeria
GTM: Cox/Coupe
Post Re: Rossa 2 pedal box
It does mean I have to remove my lovely new cylinders though. Anyone else ever get that 'one step forwards, two steps back' feeling?

Almost every time I look at mine, the job list has got longer and that's after 3 years and almost every weekend, plus making bits in the week at work :roll:
John


Sun Sep 25, 2016 9:30 am
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