square 4 carb conversion

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william shortall
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square 4 carb conversion

Postby william shortall » Mon Oct 05, 2020 4:40 pm

I have been informed by dragonfly that they do not do the concentric conversion for my square 4 which is a twin pipe alloy engine 1952 in a 1956 rolling chassis .
Has anybody got any idea if this can be sorted or can i get a gasket set for the solex
many thanks
Bill Shortall

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simon.holyfield
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Re: square 4 carb conversion

Postby simon.holyfield » Mon Oct 05, 2020 5:33 pm

You've got a Solex Bill? If so, and its in good shape then I'd use it. I don't think a slide carburettor will bring you any advantage, quite the opposite.
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
http://ariel-square-four.blogspot.com

will_curry
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Re: square 4 carb conversion

Postby will_curry » Mon Oct 05, 2020 7:03 pm

I heartily agree with Simon. A concentric converted my Mk1 from a pleasant ride to a neurotic, lurching,
snatching tribulation. As soon as time and a repairable Solex body permit that concentric is going in the bin.

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chris.shearwood
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Re: square 4 carb conversion

Postby chris.shearwood » Mon Oct 05, 2020 7:28 pm

william shortall wrote: can i get a gasket set for the solex


Seems to me there is only one gasket for the Solex and you can make that one easily enough.
1946 4G, 1950 NG and 1951 VH

william shortall
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Re: square 4 carb conversion

Postby william shortall » Tue Oct 06, 2020 10:50 am

Thanks for everyone taking the time to reply this forum as a whole has been absolutely fantastic i have asked some really dumb questions and have received positive answers to all

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simon.holyfield
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Re: square 4 carb conversion

Postby simon.holyfield » Tue Oct 06, 2020 11:01 am

There's no such thing as a dumb question William - knowledge sharing has to start somewhere.

I have a Solex instruction book here, I will try and get it scanned.
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
http://ariel-square-four.blogspot.com

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simon.holyfield
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Re: square 4 carb conversion

Postby simon.holyfield » Tue Oct 06, 2020 12:01 pm

I've just checked and realised the Solex book I have is here already:

http://www.arielownersmcc.co.uk/members ... 20HFAH.pdf
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
http://ariel-square-four.blogspot.com

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john.bebb
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Re: square 4 carb conversion

Postby john.bebb » Wed Oct 07, 2020 7:19 am

to all Mk1 owners who may experience troubles with the Amal concentric - I have designed and produced a full toleranced spec for the manufacture of a stronger throttle return spring for same & a colleague is making some. However, it is unlikely that I shall actually be able to test drive till next spring as the Sq is currently in rebuild.
Cheers, John

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Re: square 4 carb conversion

Postby GuyWalton » Wed Oct 07, 2020 7:45 pm

I had a problem with my solex that i struggled to get to the bottom of . It was excessive black smoke and obvious rich running . No end of searching found very little advice . After setting my gold star float height on the remote float it dawned on me that there was no information on float height on the solex . I took it apart , again , and added an extra washer under the float valve , therefore lowering the float height it was better . A further washer , making 3 , approximately 3mm and it is much better , no black smoke , I still need to ride it but it looking good .
51 mk1 Areil Square Four
55 DB 500 BSA Gold Star
55 Matchless G9
67 BSA B44
06 Ducati 999R


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