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What have you done today with your Austin Seven
#38
I've been making a wooden seat base for my special. The base is wood recycled from an old set of drawers. I stripped a Ruby seat then cut about a 2 inch slice down the middle and welded it back together. I did the same with the base frame part so I can retain the forward/backwards slide and locking mechanism. I won't retain the tipping though. I welded a strap across the back and the seat frame is bolted to the floor with four bolts, one passing through the crossmember and the other three will be held with a L shaped strap with nuts welded to it to spread the load under the wood floor.

[Image: main.php?g2_view=core.DownloadItem&g2_it...alNumber=1]

It is necessary to slide since there isn't much room between the seat and the wheel and the sides of the car which are high.

Because of the high side I am also adding a small step which will go just in front of the rear wing. It will have a steel strap back to the rear crossmember which is conveniently just in the right place. I am trying to cast the top of the step in aluminium. I have a wooden pattern and am experimenting with gluing on details I have 3d printed. My first experiment went wrong. The 3D printed part, the Austin wings logo, was too complex and the casting sand couldn't pick up all the detail. I pressed on anyway (as I need the practice in casting again) but then the pour went wrong and the mold exploded! Not enough venting and possibly too damp casting sand. Molten aluminium everywhere! Luckily I was wearing all the right gear and apart from a tiny drop that went down the back of my gloves I was fine.

I am now 3D printing a simpler pattern. This was the first go but I am redoing it with better spacing between the wheel and wings and with more draft on it. 

[Image: main.php?g2_view=core.DownloadItem&g2_it...alNumber=1]

It's a bit Batman!

Oh, I also got in touch with Andy Bird and after sorting out NZ to UK bank payments managed to order some close ratio gears. I want to replace all the springs and balls in the synchros. Can someone tell me how many I actually need? The manuals don't seem to say. I am guessing 3 or 4 per synchro? I haven't taken one apart yet to see! I'll replace the selector balls and springs too I guess.

Simon
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Messages In This Thread
RE: What have you done today with your Austin Seven - by jansens - 01-11-2018, 06:22 AM
Peak District well dressing - by Tony Griffiths - 31-08-2019, 05:00 PM
Genuine old and imitation new - by Tony Griffiths - 01-07-2021, 03:37 PM
Crankcase machining - by Chris Garner - 29-08-2023, 08:59 PM
Massed ballon landing and A7 - by Tony Griffiths - 03-09-2023, 08:27 PM
Popping and not pulling well? - by Biddlecombe - 10-04-2019, 03:37 PM

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