Goingbush's Electric Vehicle project

As mentioned in an earlier post I deleted my Vacuum booster a few months ago due to the chatter of the 12v vacuum pump. I changed the 1" Master cylinder for a 7/8" and I could still do with a bit more pedal travel so decided I need a 3/4" MC ( same diameter as used on the single circuit non boosted Series .)

Mine being a Dual Circuit I don't want to revert to single circuit brakes as its Engineered with dual. There is no 3/4 Dual Circuit LandRover MC , I had a quote from Power Brakes in Adelaide , $850 , to sleeve down to 3/4" & manufacture new internals. They advised look for a 3/4" from another brand.

After looking at hundreds of Master Cylinders I found the Datsun 120Y , of all things . Same era , same brake technology . Still have clearance under bonnet for reservoir , Only problem is the flange mount is vertical instead of horizontal so made up new adaptor plate from 20mm plate.

Bonus is they have bleed nipples on the MC , so it will be a single person brake bleed.

Just need to make new bundy pipes with 10mm nuts .

Not a bad solution for $95.00 (if it works)


The existing 7/8" MC on the 'Booster delete plate'
Note master cylinder is mounted 'above centre' as the revised pedal pushrod pivot is closer to the top
http://goingbush.com/AULRO/mc1.jpg


3/4" 120Y MC compared to the old LandRover 1" MC
http://goingbush.com/AULRO/mc2.jpg

http://goingbush.com/AULRO/mc3.jpg


New adaptor plate under construction
http://goingbush.com/AULRO/mc4.jpg

http://goingbush.com/AULRO/mc5.jpg

Obviously my measuring skills are below average, never mind , it fits.
http://goingbush.com/AULRO/mc6.jpg

http://goingbush.com/AULRO/mc7.jpg

stay tuned for next episode.

You're a clever fella! I would have thought a late sixties falcon master cylinder XT-XW would have been suitable...

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Originally Posted by dickyjoe

You're a clever fella! I would have thought a late sixties falcon master cylinder XT-XW would have been suitable...

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Cheers, I did look last those , but they are 1" diameter , as were the Holden ones . 7/8" are pretty common too. 3/4" Dual circuit are few & far between , Mazda had one with horizontal flange but the reservoir was too tall , I only have 20mm clearance to under bonnet lid.

Could you also push the reading into the speedo?

I gather powerwatcher is some electric gizmo

Quote:

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Originally Posted by goingbush

OK , hopefully image issues resolved.

Since I have a GPS speedo my speedo output on the gearbox is unused. So I adapted a Toyota Hall sensor to provide speed data to PowerWatcher computer rather than via a reed switch I previously mounted in front hub . ( The reed switch worked Ok but the magnet will attract iron dust from the drum over time. )

I considered using a Td5 hall sender but the Toyota units are way cheaper & easier to adapt.
Alternatively you could get a short cable made to adapt the original LR speedo cable to the Landcruiser Hall sensor.


Toyota sensor & its gear drive with LandRover Series speedo cable gear drive
http://goingbush.com/AULRO/259-1.jpg

Toyota sensor w drive shaft into LR gear
http://goingbush.com/AULRO/259-2.jpg

Toyota drive adaptor grafted onto DIY LR adaptor
http://goingbush.com/AULRO/259-3.jpg


http://goingbush.com/AULRO/259-4.jpg

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Quote:

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Originally Posted by dickyjoe

Could you also push the reading into the speedo?

I gather powerwatcher is some electric gizmo

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Yes you could use that as a speedo driver, esp since that is its intended purpose.

The powerwatcher is my android trip computer, tells me how much 'juice left in the tank' & gives stats on energy consumption and amount regenerated etc.

the video shows a screen recording from my phone with power watcher ap running, overlaid on dash cam video,

https://youtu.be/Xv0pa3uMPN0

re-edit , Video compilation.

https://youtu.be/BGuOV-uh0JY