Nice wiring! have you got a new harness or are you making one from scratch?
I'll be making one from scratch. It isn't a complicated car, but I want to use modern fuse boxes, and relays, because automotive wiring has moved on a lot in the last 90 years. 99% of it will be hidden from view hopefully. I will kick myself if there are any modern blue/red crimps visible !!
I also want to future proof the wiring, with anything I may need in the future.
To that end I'm adding capability for
Electric cooling fan
Auto gearbox neutral switch
Heater blower
Electric power steering
None of which I'm fitting yet, but later down the line, it might make it easier to drive/live with.
Which brings us perfectly up to date. Yesterday I was messing with the power steering.
I've bought a column from a Vauxhall Agila - similar to a Corsa one, but smaller and recommended by Retropower. I temporarily wired it up on the bench, to understand how it works. Just as well I did as it needs 50A cables to power it !! But for the proof of concept, running quite happily off a Milwaukee 12V power tool battery.
The £30 kit to control it is pretty neat, they give you the white multiplug on the right, and the spade terminals, ready to accept the fat wires of your choice. On top of the column ECU is the little control box, with an adjuster.
The motor is very quiet, but spinning the wheel with no-load, the system takes around 1amp. If I grab the UJ to apply some resistance, I can get that up to 5amps. So I'm sure it is doing its thing.
I plan to splice that column onto the original column, to retain period correct steering wheel and steering lock etc. I've stripped off all the Vauxhall stuff, to make it easier to store for a year or two. I'll just wire the multiplug into the loom I'm currently gathering parts for.
Post by grumpynorthener on Dec 19, 2023 9:18:40 GMT
Very interesting with regards to the power steering addition - Something I would consider fitting to my fast race look road Javelin project that I have in mind - any chance I could bribe you with a tin of Quality Street / Celebrations etc to advance the fitment and fully document it for me
Very interesting with regards to the power steering addition - Something I would consider fitting to my fast race look road Javelin project that I have in mind - any chance I could bribe you with a tin of Quality Street / Celebrations etc to advance the fitment and fully document it for me
If not there's a guy on the TR Register forum who's done a similar job. I can dig out the link if that helps.
Very interesting with regards to the power steering addition - Something I would consider fitting to my fast race look road Javelin project that I have in mind - any chance I could bribe you with a tin of Quality Street / Celebrations etc to advance the fitment and fully document it for me
Ha Ha
It is a fairly well trodden path. As others have said - a few guides out there.
The column cost me £100 - there are cheaper ones, but this had the motor/connectors still in good nick.
I'm going to run a separate feed from the battery, through a 50A breaker - just in case.
If you can use the column "whole" by using a Vauxhall splined steering wheel boss, then physical fitment is easy. Mine has a splined UJ on the end - metric I assume, but a Frankenstein approach will link it up to most things I reckon.
Getting the steering lock off - however isn't easy - I've got broken bits of plastic all over the garage.
Very interesting with regards to the power steering addition - Something I would consider fitting to my fast race look road Javelin project that I have in mind - any chance I could bribe you with a tin of Quality Street / Celebrations etc to advance the fitment and fully document it for me
There are a lot of choices out there, the Corsa C has the motor in a slightly different place, I have a new Corsa C one which is for driving school cars so its a heavy duty motor so if you need any dimensions let me know
I've been trying to catch up on the project creep over the Christmas holidays.
The offside of the bullhead didn't need too much work. I did get a nice simple bracket for the coil, and welded in a couple of captive nuts for mounting.
The offside needed more work as there were way more holes. But the metalwork went largely to plan. I added a bracket for the fuel pressure regulator, seemed the quickest and easiest solution, to weld this into place. Not like it is ever going to need to come off.
I'm not aiming for perfection here, as to do a proper job on painting the bulkhead, the engine needs to come out, and that is project creep taken too far. But a quick skim of filler doesn't take too many resources.
Blocked back, and with some quick'n'dirty masking ready for some aerosol primer/satin black.
The inside of the bulkhead is a little messier currently, but it is almost ready for paint/soundproofing.
Originally there were a nut/bolt going through the bulhead to hold on the interior trim. I've changed these to captive studs, for a cleaner look. On the top right, I'm going to add a panel for the electrical components. So this has beefier fittings, to hold the panel, but also to act as earth.
At that price, the quality isn't there of course, the magnet needed sticking back in with better superglue. The components are copper plated steel at best, which was a shame....but for a tenner.
Then I modified it with a longer M6 bolt, so it would hold my studs/bolts firmly in place.
Easy to adjust to hold the bolt square and firmly to the bulkhead for welding.
I also used a thick piece of copper, with a little divot in it to act as a backing plate for filling up the holes from the other side.
For a tenner, and 10 minutes of messing around, saved hours I reckon, especially as I was working solo.
Highly recommended if you have a similar job ahead
I managed quite a time on the old girl over the holidays. The engine bay side of the bulkhead came out pretty well. The coil install is much neater than it was before. But only now, am I noticing the broken cab mount - add that onto the list....
The drivers side came out good too. The paint is a little blotchy, but it was cold in the garage, I'll give it a blow over when the weather warms up a little.
I've been itching to replace the horrible copper fuel lines. The Stromberg carb is very fussy on fuel pressure, and needs 2.5psi max. My electric pump is a little higher than that. So, a fuel pressure regulator, 50's style clear red fuel line, and a pressure gauge on the carb. I still need to strip out, and replace the line to the tank. But already so much better.
The inside of the bulkhead has had plenty of attention too. First stage after a clean up was the slather on some zinc rich paint. Just brushed on, no need for a perfect finish here.
Then some bitumen based sound/heat proofing, and start looming in the electrical system. The wiring around the column has been left a little long, to give me some wiggle room, when installing the powered column.
The original soundproofing was quite thick, so I added another layer, this time a close-cell foam about 10mm thick. This was cut around the loom to the multiplugs, and gives a nice levelling up.
Then the GRP trim could be fitted onto the captive studs I've added. The panel is a bit battered, but will do for now, I may well trim it in carpet at some point in the future.
I've designed an electrical panel, when the dash is in place, it should be 99% invisible.
Now I can continue the looming and termination, but I need to make sure I leave clear paths for the cowl vent, and the control rods for the choke and hand throttle. That'll keep me out of mischief for a while.
Spent all my free time this weekend wiring the fusebox and relays. 1/2 decent wiring takes ages. It still needs a final tidy up, once I've tested the circuits, but this is pretty close to the finished job.
The bunch of central cables will go to the dash. The cables on the right I need to route to the battery box some how.
I really like that design of fuse box, I've used them on the Morris too. The large connections at each end are 110A cables, the fuse box also acts as a bus-bar feeding all the positive feeds out of the top, and all the negative feeds out of the bottom. I've not brought all the earths back to the fuse box, for example horns and headlamps, I'll earth closer to the front of the vehicle.
The large relay is switched from the ignition switch, and provides power to the fusebox. Making off the large cables is a joy with my £30 hydraulic crimpers
Finsihed off with some glue-lined heatshrink - job done.
There is some modern stuff I want to mount nicely hidden. Namely a couple of boxes that provide USB charging, and a GPS speedo unit. I may well have different gearboxes, and wheels/tyres in the future, so a GPS speedo makes that easy.
There are, for sure easier ways of doing this, but my way means 99% of it can be done in the house rather than the freezing garage.
The area on the back of the dash I want to use for mounting is far from flat. So I drew a grid so I could take some approx measurements. Then 3D printed a couple of blocks following those contours, but with a flat mounting surface. I put thread inserts into the ASA plastic, they just melt into place with a soldering iron.
Fitted up - just with double sided tape for now. I will bond them on with Sikaflex or similar later. The contouring didn't have to be perfect, the Sikaflex will fill in the gaps too.
I obviously only have one GPS speedo, but I've done his'n'her USB chargers. It was easy to mirror the the design, and give me a couple of spare captive threads for whatever the future may bring.