Lotus Elan

New Dual Brake master Cylinder

PostPost by: umbyfer » Thu Jun 20, 2024 12:56 pm

Hello,

i need your help. On my Sprint Federal i have the Girling Dual Brake Master Cylinder LHD, bore 0.7" (17,8 mm).
It seems nobody sell a new reproduction. Tony Tompson and Classic Team lotus (Ex Paul matty) sell a similar type but for RHD only.

Thank you for any help.

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PostPost by: h20hamelan » Thu Jun 20, 2024 3:42 pm

I am sure I have used the Triumph Spitfire dual circuit, sorry I can not find the number.
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PostPost by: mbell » Thu Jun 20, 2024 8:27 pm

I've used a early spitfire on my +2, there also a shorter later one.

I suspect the brake line connections on the spitfire will be on the wrong side and tight to the inner arch. So might not fit.
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PostPost by: rgh0 » Fri Jun 21, 2024 1:17 am

Theres a early Datsun 11/16 dual master cylinder with bottom outlets that will fit in a LHD or RHD car

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edited as it fits in both LHD and RHD
Last edited by rgh0 on Fri Jun 21, 2024 12:43 pm, edited 1 time in total.
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PostPost by: umbyfer » Fri Jun 21, 2024 8:26 am

brake master cylinder federal.jpg and
I am considering to buy any used master cylinder removed from the car and put in a corner. If it is not too much damaged, it is possible to machine inside than to insert a cylinder in still in order to obtain the identical bore.
i am able to do it.
Thank you to everybody to have a look in the own cartons in garage.
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PostPost by: h20hamelan » Fri Jun 21, 2024 2:48 pm

There are a few others whom fit, they are all N American things like the 1969 Cortina GT Ford Corsair P/U.
If you are still stuck, I can turn on the old computer and find the file.
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PostPost by: umbyfer » Fri Jun 21, 2024 2:53 pm

h20hamelan wrote:There are a few others whom fit, they are all N American things like the 1969 Cortina GT Ford Corsair P/U.
If you are still stuck, I can turn on the old computer and find the file.


i appreciate. thank you.
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PostPost by: 2cams70 » Sat Jun 22, 2024 1:15 am

Physically looks exactly the same as Australian specification Mk 1 Escort with tandem circuit front drum brakes. Not sure about internal bore size - would have to check. LHD or RHD should make no difference - or is this assumption incorrect?
The same part described as being for a Ford is likely to be a lot cheaper and more readily available than one described as being for a Lotus!
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PostPost by: gav » Mon Jun 24, 2024 10:08 am

People like Classicar Automotive can restore master cylinders so if you have the original, they should be able to help.
One day I'll actually finish - completely - one day....
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PostPost by: umbyfer » Mon Jun 24, 2024 1:03 pm

2cams70 wrote:Physically looks exactly the same as Australian specification Mk 1 Escort with tandem circuit front drum brakes. Not sure about internal bore size - would have to check. LHD or RHD should make no difference - or is this assumption incorrect?
The same part described as being for a Ford is likely to be a lot cheaper and more readily available than one described as being for a Lotus!

LHD or RHD makes big difference on Elan! no space on left side for the pipes to connect to the cylinder. The master cylinder is very closed to the body.
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PostPost by: 2cams70 » Mon Jun 24, 2024 1:32 pm

umbyfer wrote:
2cams70 wrote:Physically looks exactly the same as Australian specification Mk 1 Escort with tandem circuit front drum brakes. Not sure about internal bore size - would have to check. LHD or RHD should make no difference - or is this assumption incorrect?
The same part described as being for a Ford is likely to be a lot cheaper and more readily available than one described as being for a Lotus!

LHD or RHD makes big difference on Elan! no space on left side for the pipes to connect to the cylinder. The master cylinder is very closed to the body.


I checked and Ford master cylinder is 0.75" bore so not suitable for Elan with 0.70" bore.
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PostPost by: rideaway » Mon Jun 24, 2024 1:49 pm

Hello Umberto,

This winter I converted my Elan S4 from RHD to LHD and kept the RHD twin master cylinder. It's quite tight but it fits.

If that helps.

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