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| Mk2 Master Cylinder Placement https://ausmini.com/forums/viewtopic.php?f=2&t=100959 |
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| Author: | cooperess [ Sun May 16, 2021 11:26 am ] |
| Post subject: | Mk2 Master Cylinder Placement |
I am having trouble, which way round do the master cylinders go. Brake at the back or front and clutch at the back or front. Attachment: EngineBay.JPG Attachment: 1970-morris-mini-cooper-s-mkii-saloon1.jpg
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| Author: | gtogreen1969 [ Sun May 16, 2021 12:36 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
The early 1969 MK2 S had tin tanks like the MK1 S. Attachment: Early MK2 Cooper S Brake and Clutch master cylinders.jpg The plastic type cutch master was added some time before the plastic type brake master. Attachment: Mid 1969 MK2 S.jpg Attachment: SLL 52 pg4 Clutch Brake Master Cylinder change YG2S4 924.jpg From YG2S4 924 they had Plastic Brake master tank to the rear. Plastic Clutch master tank to the front. Attachment: Post YG2S4 940 MK2 S.jpg
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| Author: | cooperess [ Sun May 16, 2021 3:56 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Now I am utterly confused GTO. I was wondering about postion, now I need to know if I need a tin or plastic can. |
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| Author: | gtogreen1969 [ Sun May 16, 2021 4:28 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
cooperess wrote: Now I am utterly confused GTO. I was wondering about postion, now I need to know if I need a tin or plastic can. I thought I would add the extra info for 2 reasons. You may want to fit the factory correct style and the bolt length may be too short if you fit the wrong type.
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| Author: | cooperess [ Sun May 16, 2021 7:08 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Do you have pictures of the two different pedal box types GTO? |
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| Author: | gtogreen1969 [ Sun May 16, 2021 7:11 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
cooperess wrote: Do you have pictures of the two different pedal box types GTO? No I don't. It's probably the same with just longer bolts welded on.
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| Author: | cooperess [ Sun May 16, 2021 7:15 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Just need to know now how much thread shows in both cases. |
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| Author: | gtogreen1969 [ Sun May 16, 2021 7:41 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
If using the plastic type master cylinders just make sure at least one thread is showing with the base spacer and spring washers fitted. |
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| Author: | cgo [ Sun May 16, 2021 8:08 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Shown is a pedal box from a Sept 1970 S with dual plastic reservoirs. Your may be able to get an idea of the length of the stud/weld-bolts. |
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| Author: | gtogreen1969 [ Sun May 16, 2021 8:11 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Here is one from a Sep 1970 MK2 S. There appears to be 23 threads showing Attachment: Pedal Box Sep 1970.jpg I think this one is from a MK1 S. Looks to be about 18 threads showing. Attachment: MK1 S Brake pedal.jpg Sorry I dont have a side by side comparison |
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| Author: | cooperess [ Sun May 16, 2021 9:49 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Good work gto & cgo. Now to check my pedal boxes. |
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| Author: | gtogreen1969 [ Sun May 16, 2021 9:57 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
If it helps - YG2S4 839 was fitted with the tin master cylinders. Attachment: YG2S4 839 Photo taken October 1969 at Bathurst.jpg
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| Author: | ausdino [ Mon May 17, 2021 9:08 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
My pedal box from a March'70 S with dual plastic reservoirs. |
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| Author: | cooperess [ Tue May 18, 2021 11:46 am ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
So, the long bolted pedal box is Mk2 and the short bolted pedal box is Mk1. |
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| Author: | Bill B [ Tue May 18, 2021 1:01 pm ] |
| Post subject: | Re: Mk2 Master Cylinder Placement |
Attachment: Pedal box stud lengths tin and plastic styles.jpg Photos of Mk 1 tin tank and Mk2 plastic reservoir style pedal boxes. (Photo is a bit deceptive for length as the shorter one is further away). Early Mk1 S(both tin tanks) on LH side: 20 threads are showing; 22mm long. Mid-1970 Mk2 S (both plastic reservoirs) on RH side: 24 threads showing; 25.5mm long. The early pedal box (on right) used hex bolts welded to the underside - Mk2 (on left) used special studs welded on. |
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