Super Mini Mad
Posted 17 February 2021 - 07:25 PM
Like they do for MGBs?
https://www.moss-eur...er-17h7985.html
Mine is worn and I want to replace it but I have to buy the entire master cylinder. Why can't the mini parts suppliers sell them? They must be made as they are supplied with new master cylinders.
Crazy About Mini's
Posted 17 February 2021 - 08:23 PM
Supply and demand? For most people, if the push road is that bad the master cylinder is probably due replacement too.
You used to be able to buy them - 17H7557
Super Mini Mad
Posted 17 February 2021 - 09:33 PM
can't anymore. Only for MGs. Not sure what the difference is between the 17H7557 and 17H7985. Might get one and see. I want to keep the M/C if possible but want to replace the push rod. Might have to buy a new M/C and remove the push rod. Just seems unfair that MGBs can have that option.
Crazy About Mini's
Posted 17 February 2021 - 09:54 PM
Probably a different length.
I may have a used one spare if that any use?
One Carb Or Two?
Posted 18 February 2021 - 08:02 AM
Same can be said for Spitfire Master Cylinders, some manufacturers do not supply the pushrods.
Pushrods can be different sizes, you would think it would make sense to make a standard pushrod of equal length to be used on different cars -especially given that a lot come from BLMC playground
Cost cutting I think you will find is the word.
..is NOT a girl!
Posted 18 February 2021 - 10:43 AM
It appears both are 3/4" inch bore. Could be interesting what any length difference makes to the height offset with the brake pedal.
https://www.merlinmo...-clevis-gmc-clv ?
https://www.mgexp.co...length.2927795/
Not sure that doesn't just add to the confusion, but something sounds about 3/8" longer as a very rough estimate
Super Mini Mad
Posted 18 February 2021 - 07:23 PM
They say a fool and their money soon parts. Well, to abide by the rule, I ordered one from Moss to see what the difference is. And, drum roll please, to the naked eye, the only difference I can see, is the dust cover collar on the shaft!
pushrod2.JPG 55.19K
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Super Mini Mad
Posted 18 February 2021 - 07:24 PM
Same can be said for Spitfire Master Cylinders, some manufacturers do not supply the pushrods.
Pushrods can be different sizes, you would think it would make sense to make a standard pushrod of equal length to be used on different cars -especially given that a lot come from BLMC playground
Cost cutting I think you will find is the word.
And they wondered why they never made any money!
Super Mini Mad
Posted 18 February 2021 - 07:43 PM
It appears both are 3/4" inch bore. Could be interesting what any length difference makes to the height offset with the brake pedal.
https://www.merlinmo...-clevis-gmc-clv ?
Now this has got me thinking...
..is NOT a girl!
Posted 18 February 2021 - 11:32 PM
Don't know why I didn't spot https://www.merlinmo...nders-obpcb005s
Even better, but a little bit dubious if there'd be room for either - how much of the lotal length needs to be able to go through the retainer washer in to the cylinder 
Moved Into The Garage
Posted 19 February 2021 - 12:02 AM
Don't know why I didn't spot https://www.merlinmo...nders-obpcb005s
Even better, but a little bit dubious if there'd be room for either - how much of the lotal length needs to be able to go through the retainer washer in to the cylinder
There are issues with length here. See my fitting of the KAD clutch kit
https://www.theminif...date-it/page-50
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