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| Brake master cyl question https://www.ausmini.com/forums/viewtopic.php?f=2&t=37833 |
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| Author: | poeee [ Fri Nov 16, 2007 11:34 am ] |
| Post subject: | Brake master cyl question |
Basic question probably. Scenario. 1970 panel van. Standard drums. Converting to 7.5" Cooper S brakes with no booster (probably no booster, I love how my unboosted 8.4" discs feel at my foot on the LS). I will be putting in a new master cylinder no matter what, but is there a difference between disc and drum master cylinders? |
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| Author: | simon k [ Fri Nov 16, 2007 11:36 am ] |
| Post subject: | |
nah... not if it's a new MC |
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| Author: | sgc [ Fri Nov 16, 2007 11:40 am ] |
| Post subject: | |
I have the Oz-style large circular plastic reservoir type master on my K, which I recently converted from drums to discs. I was expecting to have to change the MC, but it turns out that type is 0.7" diameter and is already suitable. I believe if the non-return valve was operational it'd need to be removed, but it was stuffed anyway so I got away without touching it 
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| Author: | drmini in aust [ Fri Nov 16, 2007 1:19 pm ] |
| Post subject: | |
If running with no servo, the 0.7" bore is the one to use. Even a Deluxe tin tank one would do, but you need to add some fluid volume to let it drop as pads wear. Those plastic extensions work good- but need an O-ring so they seal. 
<edit> the new plastic reservoir ones are good, you can see fluid level. |
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| Author: | poeee [ Fri Nov 16, 2007 2:21 pm ] |
| Post subject: | |
I'll be buying a new plastic tank one. |
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| Author: | pristic [ Fri Nov 16, 2007 4:19 pm ] |
| Post subject: | |
I put one of the new clutch ones on mine (its a new plastic one) and its great... can see fluid level and the cap screws on nice and tight. I used the extensions on my tin ones and snapped off the thread  I didnt use the rubber O ring and it leaked... if you get the extensions they are good, just make sure you use the O ring as Doc says.
Pete |
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