BlownCoronas Lotus Seven

[Chevronrod]

[Chevronrod]

[Chevronrod]

[Chevronrod]

Rear wheel cylinders and master cylinders also need doung. Are they similar to yours and do you know what they are?

[Chevronrod]

Rear wheel cylinders sorted. Master cylinder is a mystery.  Even local brakes repairer spent 20 minutes trying to identify but with no luck.

[locost_bryan]

Master cylinder looks a lot like this?

Classic Mini Dual Line Brake Master Cylinder AP Lockheed. (pre servo) GMC227 - GMC227 (classiccarparts.co.nz)

[BlownCorona]

My rear diff had aparently been changed from the factory viva diff to a large torana diff, I bought wheel bearings and slave cylinders to suit torana and the fit correctly, but I can't confirm that they are original. 

 

Also I'm all but certain that these chevrons are not the same company as the British chevron sports cars. I think it's just a coincidence. 

[locost_bryan]

Different company altogether.

https://www.chevron.co.nz/

[Chevronrod]

Thx heaps for uour info! Mine is single bore with 13/16 stamped on the side, so don'tthink it is mini, but will check it out. . If i can't find out what it is i may need to use a JB1526 and remake the master cylinder mounts.

[BlownCorona]

im very sure that you'll be able to find a suitable drop in replacement. a specialist brake shop should be able to help you with a catalouge, i did this with my '71 corona and matched up a datsun master that had dual circuits and an appropriate bore size for running no booster.

If you end up remaking the mounts you could consider going with dual cylinders and a bias bar, i would quite like that on mine. my car only has a single circuit master cylinder so an upgrade to dual circuit is very much on the cards for me.

Edit, i just saw you mentioned your locan brake guy had no luck, still, i would encourage you to browse catalogs for options

[locost_bryan]

Could be worth browsing through the Girling online catalogue.  FYI 13/16" are listed as 20.6mm. 4001142 and 4001143 look very similar, although they are listed for a Daewoo Matiz.

G910D Girling Hydraulics 2015 (girlingauto.com)

[Chevronrod]

2 hours ago, locost_bryan said:

Could be worth browsing through the Girling online catalogue.  FYI 13/16" are listed as 20.6mm. 4001142 and 4001143 look very similar, although they are listed for a Daewoo Matiz.

G910D Girling Hydraulics 2015 (girlingauto.com)

Thx Brian, very similar. I wentbto my brake guys again, and i think i can make a 3/4" master cylinder he has fit. Bit of modding, but should be fine.

[Truenotch]

On 13/10/2024 at 14:28, Chevronrod said:

Is that a mouse pad on the transmission tunnel? 

[Chevronrod]

Not a mouse pad, more of a non-slip surface for a phone maybe.