Griff clutch master cylinder

[Redgriff22]

Hi all
I'm changing the master cylinder due to a leak and have it removed and on the bench
The issue is when measuring the piston diameter it comes out as 0.6 and the replacements are listed as 0.7 inch
If I fit the 0.7 will it change the clutch operation?
Thanks

[phillpot]

A bigger bore master cylinder will move more fluid so the clutch will start to release with less pedal movement. sounds like someone has fitted the wrong part in the past?

[griffster]

Did u remove MC via hole in wing or r u working in footwell It doesnt appear possible to remove mine, now the body is on - seal failure due to standing many years unused

[Redgriff22]

Took the cylinder out from the hatch in the bonnet area
Wouldn't be able to remove from the foot well
Suppose you could do the seals from the foot well but didn't try that

[Steve_D]

Redgriff22 said:

...........Suppose you could do the seals from the foot well but didn't try that

You need to be young, trim and nimble to do that.
Lets me out then.

Steve

[griffster]

me too, but second nut on m/c seems inaccessible through little hatchlet, where as the footwell looks a breeze...for most born after 1990

[Colin RedGriff]

griffster said:

me too, but second nut on m/c seems inaccessible through little hatchlet, where as the footwell looks a breeze...for most born after 1990

What I did was get a 1/4 ratchet with the appropriate size socket on it. Then tie wrapped it to the master cylinder bowl (or get someone to hold it). Then in the footwell undo and remove the nut. The master cylinder can then be withdrawn once the rod on the pedal has been unclipped.

Similar exercise for replacement but get the bottom bolt in place at the same time as the master cylinder

[Zener]

If you got someone to secure the lower nut as you release the bolt the job is easy

[griffster]

cheers

[Steve_D]

Zener said:

If you got someone to secure the lower nut as you release the bolt the job is easy

Easy? As long as the clevis pin has not rusted in. And your not 70 YO. And your not 16 stone.

Steve

[Zener]

Steve_D said:

Zener said:

If you got someone to secure the lower nut as you release the bolt the job is easy

Easy? As long as the clevis pin has not rusted in. And your not 70 YO. And your not 16 stone.

Steve

good point , actually I did have to unscrew the push-rod from the clevis on one I did due to just that issue so thats a valid point

[griffster]

Steve_D said:

Easy? As long as the clevis pin has not rusted in. And your not 70 YO. And your not 16 stone.

Steve

..18 stone+ and an arthritic pensioner......!

I need a competent experienced amateur to help out with a few jobs in Northants over next few months really I guess

[Steve_D]

griffster said:

Steve_D said:

Easy? As long as the clevis pin has not rusted in. And your not 70 YO. And your not 16 stone.

Steve

..18 stone+ and an arthritic pensioner......!

I need a competent experienced amateur to help out with a few jobs in Northants over next few months really I guess

You need a ....Grandchild.

Steve

[griffster]

....betta find me a wife first

[catsey]

Steve_D said:

Easy? As long as the clevis pin has not rusted in. And your not 70 YO. And your not 16 stone. agree

Steve

Agree
in addition 4 stone and 6ft 6
don't knock it Steve when these young whippets get to our age they will true AC/DC Amp heads ,
talking Vector Drives IGBT and cars with No steering wheel