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| Metal Master Cylinders https://ausmini.com/forums/viewtopic.php?f=2&t=98152 |
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| Author: | goodie [ Fri Jan 11, 2019 7:34 am ] |
| Post subject: | Metal Master Cylinders |
A mate showed me these 2 master cylinders the other day , they have been marked with texta on the bases so i'm assuming they came off the same car (Cooper S maybe ) , can anyone shed some light on what they may of come off ? |
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| Author: | simon k [ Fri Jan 11, 2019 10:06 am ] |
| Post subject: | Re: Metal Master Cylinders |
pre '70 ish standard mini - not Cooper S - the clutch MC is the same for all minis, but Cooper S has a taller (by like 1") brake MC tank measure the bore and someone will know more, the brake MC came in different bore sizes |
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| Author: | deluxe67 [ Fri Jan 11, 2019 1:51 pm ] |
| Post subject: | Re: Metal Master Cylinders |
My '67 Deluxe has this type. |
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| Author: | goodie [ Fri Jan 11, 2019 5:16 pm ] |
| Post subject: | Re: Metal Master Cylinders |
I'll get the mate to measure the bore sizes , both cyl's are the taller brake size , seems like that they have both come from the same car seeing as they have been marked with texta , the one on the right marked brake , the other marked clutch . Just curious that maybe a mini of some version may of had 2 tin master cyl's of the same height . |
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| Author: | Bill B [ Sat Jan 12, 2019 11:39 am ] |
| Post subject: | Re: Metal Master Cylinders |
The master cylinders can usually be identified as clutch or brake by the mounting flange position. Brake cylinders have the mounting flange holes "square" across the tank; clutch has the holes at an angle to the tank. The usual bore sizes are 0.70" for brake and 0.75" for clutch but there are some applications where this isn't the case. The clutch tank in you photo looks like a tall brake cylinder, but for the clutch. Is it possible someone has had the cylinder resleeved? When tin tanks are resleeved, the tank has to be removed for drilling 2 transfer ports in the new sleeve. Then the tank has to be soldered back on. Has a PO liked the look of matching tall tanks and had the tank soldered at a different angle to be the clutch? |
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| Author: | goodie [ Sat Jan 12, 2019 6:29 pm ] |
| Post subject: | Re: Metal Master Cylinders |
The Cyl's haven't been sleeved previously , when he first showed me I thought that they were both brake cyl's , it's highly possible that someone replaced both their cyl's with 2 brake cyl's . |
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| Author: | Pumba [ Sun Jan 13, 2019 3:39 pm ] |
| Post subject: | Re: Metal Master Cylinders |
Great explanation Bill B |
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| Author: | Goldbrocade_62 [ Sun Jan 13, 2019 4:16 pm ] |
| Post subject: | Re: Metal Master Cylinders |
Looking at the cylinders I would say they are the larger type as there appears to be a big blank distance between the top and bottom of tank and the writing, compared to the smaller cylinders, morris 1100's I have wrecked in the have had larger cylinders on both brake and clutch |
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| Author: | Bill B [ Sun Jan 13, 2019 5:26 pm ] |
| Post subject: | Re: Metal Master Cylinders |
Goldbrocade_62 wrote: Looking at the cylinders I would say they are the larger type as there appears to be a big blank distance between the top and bottom of tank and the writing, compared to the smaller cylinders, morris 1100's I have wrecked in the have had larger cylinders on both brake and clutch If 1100s had the large tanks for both m/cs, then that is most likely where Goodie's samples came from. I wasn't aware of what was fitted to 1100s. |
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