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Austinsevenfriends › Austin Seven Friends Forum › Forum chat... v
a7 reverse catch lever

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a7 reverse catch lever
Vancevr Offline
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Joined: Jan 2021 Posts: 162 Threads: 71
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Location: California USA
Car type: 1929 austin 7 chummy AD
#1
10-02-2021, 11:51 PM
Hi I have a 29 chummy and I would like to make a reverse gear catch like it would have had on the gear lever. Could anyone help me with some pictures and/or maybe some instructions/suggestions.
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Renaud Offline
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#2
11-02-2021, 01:28 PM (This post was last modified: 11-02-2021, 01:32 PM by Renaud.)
Hi,

This is not on an A7 but as your question is quite open here's what I made for the same purpose on my Sandford's gearbox.

The reverse is left/front and the first rear/front so I was really afraid to break the gearbox if I missed the 1st to second.



[Image: dsc_1727.jpg][Image: dsc_1726.jpg]



[Image: dsc_1728.jpg][Image: dsc_1724.jpg]



Hope this help.

Renaud

Of course the gear lever is very short and that allows me to push with my little finger to unlock.
http://tricyclecaristes.1fr1.net/t1032-le-sandford-de-mon-pere
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Parazine Offline
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Joined: Aug 2017 Posts: 881 Threads: 48
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Location: North Wiltshire
Car type: 1927 Chummy, 1938 Big Seven 1/2 a Trials Chummy
#3
11-02-2021, 07:22 PM (This post was last modified: 11-02-2021, 07:23 PM by Parazine. Edit Reason: grammar )
Here you go. Made from German Silver about 3/64" thick I think. 1 1/2 inches across at the widest part, 1 3/4 inches from below the rivet to the top.

Photos from my 1929 saloon.


.jpg   DSC_0984s.JPG (Size: 23.29 KB / Downloads: 357)


.jpg   DSC_0985s.JPG (Size: 18.7 KB / Downloads: 357)


.jpg   DSC_0986s.JPG (Size: 26.28 KB / Downloads: 357)


.jpg   DSC_0988s.JPG (Size: 24.59 KB / Downloads: 357)

Worth keeping an eye on eBay, sometimes chopped gear sticks come up or even a reverse catch.
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Vancevr Offline
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Location: California USA
Car type: 1929 austin 7 chummy AD
#4
11-02-2021, 10:11 PM (This post was last modified: 11-02-2021, 10:28 PM by Vancevr.)
Thanks to both of you I will keep an eye out for one and will see what I can whip up.  Big Grin Another question I forgot to ask is how does the bottom portion work?
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Parazine Offline
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Location: North Wiltshire
Car type: 1927 Chummy, 1938 Big Seven 1/2 a Trials Chummy
#5
12-02-2021, 12:52 AM
Ah! Another photo required but it'll have to wait until tomorrow to venture into the icy garage!
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Vancevr Offline
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Location: California USA
Car type: 1929 austin 7 chummy AD
#6
12-02-2021, 01:48 AM
cool thanks
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Tony Press Offline
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Location: Malvern, Victoria, Australia
#7
12-02-2021, 02:32 AM (This post was last modified: 12-02-2021, 02:35 AM by Tony Press.)
From the A7CA website: 

Austin Seven Online Archive - Austin 7 Clubs' Association | (a7ca.org)

List of Spare Parts: 

PL_670A.pdf (a7ca.org)

Page 30 shows deatils of the gear lever assembly.
http://austin7club.org
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Ivor Hawkins Offline
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Location: The village of Evenley
Car type: 1934 Austin Seven RP Deluxe
#8
12-02-2021, 10:14 AM
(11-02-2021, 07:22 PM)Parazine Wrote: Photos from my 1929 saloon

That looks like a beautifully original interior!
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Parazine Offline
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Location: North Wiltshire
Car type: 1927 Chummy, 1938 Big Seven 1/2 a Trials Chummy
#9
12-02-2021, 12:05 PM
Here you are:

The first two show the catch raised and in reverse, the third is in neutral.


.jpg   DSC_0995s.JPG (Size: 36.68 KB / Downloads: 181)


.jpg   DSC_0997s.JPG (Size: 30.85 KB / Downloads: 181)


.jpg   DSC_0999s.JPG (Size: 31.65 KB / Downloads: 181)

The guide housing often remains, rivetted to the gearstick. There is a small coil spring inside to pre-load the catch. 

I've reproduced the brass piece from a piece of (I think) 1/4" brass plate with a file, doesn't take long even with a few duff attempts first.

Pictures of a spare gearbox, hauled out of one of my famous sheds.
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Dave Mann Offline
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#10
12-02-2021, 09:23 PM
If they needed a reverse catch on the early 3 speed boxes why was it deleted on the later ones?
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