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1979 Mini Ebony With Sc Injection

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#46 fokko

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Posted 06 May 2021 - 07:19 PM

Moved on with the work; dismantled the other radius arm, to find out two issues;

Score marks on the brake backplate (worn wheel bearing?);

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Brake backplate mating face with huge amount of rust;

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Out came the radius arm pivot shaft which was wet...

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And the side of the bush looked like this:

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So I decided to get another radius arm. This one is from a 1992 SPI Mini and apparently it had been lying outside somewhere for quite some time;

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Took out the pivot shaft and it was even worse...

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But the brake backplate mating face was better:

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Prepared it for glass bead blasting:

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And the result:

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Asked a friend to press in a new bush and ream it to size:

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Painted and ready to build parts to it:

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Then returned to the subframe. Apparently the previous owner had issues removing the exhaust bracket or maybe the exhaust hit something, because this hole should be round...

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Put on the last new rubbers:

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Removed the old brake lines (not MOT worthy):

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Cleaned the splitter, first mechanically and then I put it in the ultrasonic cleaner... Before:

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After:

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Then I started working on the fuel lines. I have a set of original, but used SPI fuel lines. I figured I could put them on my shell. It would just require the change in the front bulkhead (which I already fixed in earlier posts) and a change in the rear seat. How wrong could I be... I started working on the hole in the boot floor to accommodate the 3 fuel lines. I cut the flanges from one of the rubber grommets I have and used that as a template. Looking carefully at the pictures of the Blue MPI Mini Ben_O has restored to find the right location and started cutting away metal. When done, I did a test fit and discovered the fit was terrible. This was due to the fact that the front floor should have room for the lines as well and the boot floor seems even more different then I thought...

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I don't have pictures when the fuel lines were test fitted, but I can assure you it didn't work. I now ordered new 8mm cunifer lines, which I will be custom fitting (I ordered a flare tool as well). I will lead them around the front floor board, just like the original line. I will use the original SPI/MPI fuel filter for which I need to create flares etc. More on that later...
 



#47 Maccmike8

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Posted 06 May 2021 - 08:04 PM

Nice work.



#48 fokko

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Posted 23 July 2021 - 02:06 PM

The past few weeks I have not been able to do a lot, but I'll share what I have. I finished the left-hand side trailing arm;
 
Sprayed satin black

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Reaming was not 100% accurate, but it seems to be OK after fitting

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Mounted the backplate, slave cylinder & hardline

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Brake shoes & springs in place

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Then headed over to the hub which seems to have seen some abuse...

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This is the inner seal, was probably rubbing to the flange or something...

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All components removed, ready to clean

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Clean

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Back in place with fresh grease and long wheel studs

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Complete (less the handbrake quadrant)

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New handbrake quadrant (not on photo), pin, ring, clip. I actually fitted an additional ring under the clip, so the quadrant has less play. It works pretty good

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Then I moved to the fuel lines. Boy this is a headache... I got my cunifer line which is pretty expensive. I figured I'd better not play & learn with that, but rather with some cheap aluminium tube which costs a fraction of the cunifer pipe. So I started working...
I bought a good quality bender and bent the aluminium pipe in different angles to be able to measure what I needed

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First pipe in place (it's only 50cm long, just to get the first bends right). I used the QSP fuel pipe clamps

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Put the second line in place, and at that point I started to dislike the QSP clamps. They look messy and there is not enough room to make them look nice...

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So I got some original injection pipe clamps

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Cleaned them

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Got rid of the breather pipe clamp part (I'm not going to use the SPI/MPI breathing system)

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Drilled a hole in the screw and put in a metal screw/bolt, so I could use rivnuts

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That looks better (although I might spray them black using PlastiDip)

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One of the pipes needs to be routed to the fuel pressure regulator. In pictures on the internet I see people having them floating around, just being fixed by the rubber fuel line. I don't like that, so I started working on a bracket to fix it to the bulkhead. In LHD Minis, there is quite some room at the left hand side of the bulkhead, so I figured I would put it there. First I used a metal hose clamp

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I didn't like that though and I figured it would trash the aluminium the regulator is made of... So between all of my stuff, I found a plastic mounting clamp for a bike light. I made that fit the regulator and it looks and feels better

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So that's it for now. Next step is to make the fuel pipe join the regulator and make a hardline from there to the right hand side of the bulkhead to join the other side of the injection unit.



#49 sonscar

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Posted 23 July 2021 - 06:12 PM

Nice details,that is a seriously nice pipe bender.Steve..

#50 Spherix

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Posted 25 July 2021 - 07:51 AM

Looking good! Be sure to fit your subframe before finishing your lines to ensure clearance along the bulkhead. Mine were quite tight with the original lines fitted to a non injection shell.

#51 jsyjamie

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Posted 26 July 2021 - 10:46 AM

Amazing work on those fuel pipes! I tried to do it myself and gave up after a few hours on one pipe and bending one of the last bends the wrong way, seriously frustrating!



#52 fokko

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Posted 28 July 2021 - 12:31 PM

Looking good! Be sure to fit your subframe before finishing your lines to ensure clearance along the bulkhead. Mine were quite tight with the original lines fitted to a non injection shell.

Yes, I planned that indeed, but thanks for the advice anyway 😉

Amazing work on those fuel pipes! I tried to do it myself and gave up after a few hours on one pipe and bending one of the last bends the wrong way, seriously frustrating!

Thanks! I agree it’s quite a job, but very rewarding once you get the hang of it 😊

Edited by fokko, 28 July 2021 - 12:32 PM.


#53 Steve220

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Posted 29 July 2021 - 08:44 AM

So you're using the alloy pipes as a mock up before the kunifer?


Edited by Steve220, 29 July 2021 - 08:45 AM.


#54 fokko

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Posted 29 July 2021 - 12:14 PM

So you're using the alloy pipes as a mock up before the kunifer?


Yes, that is correct! It’s harder to bend, but way cheaper…





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