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by Simon.Gardiner
Sun Feb 17, 2019 9:16 pm
Forum: Four stroke
Topic: SA Bush and Fork Oil Seal Holders?
Replies: 6
Views: 143

Re: SA Bush and Fork Oil Seal Holders?

With second thoughts, the swing-arm suspension movement comes from putting the rubber in 'shear' (bush inners clamped on spindle, outers fixed in swing-arm), so with the reduced thickness of rubber in Mick's set-up it might be useful to check that there is enough movement at the wheel spindle to all...
by Simon.Gardiner
Sun Feb 17, 2019 3:22 pm
Forum: Four stroke
Topic: SA Bush and Fork Oil Seal Holders?
Replies: 6
Views: 143

Re: SA Bush and Fork Oil Seal Holders?

Metalastic bush in the swing-arm that's been in the back of my garage since 1972 (I think there's a good chance it's original) does look to have thinner walls - I don't think that's an issue though, the main problem is whether they're too soft. SwingArmMetalastic.jpg I've stripped/rebuilt three or f...
by Simon.Gardiner
Sun Feb 17, 2019 2:53 pm
Forum: Four stroke
Topic: ENGINE OIL FOR 1938 ARIEL SQUARE FOUR
Replies: 8
Views: 211

Re: ENGINE OIL FOR 1938 ARIEL SQUARE FOUR

I can't think of any reason for avoiding 'high-detergent' oil in a rebuilt, cleaned out motor with an oil filter, although I suspect that's not a universally held opinion. Having said that I'd probably prefer not to use a 'high-detergent' oil - I'm more bothered about anti-scuffing qualities though ...
by Simon.Gardiner
Sat Feb 16, 2019 4:45 pm
Forum: Four stroke
Topic: Plunger suspension ride height adjustment
Replies: 26
Views: 340

Re: Plunger suspension ride height adjustment

....Hard to imagine anything assembled backwards.... I think you're right with that but we are clutching at straws a bit here (I reckon you need to move that slider down by something like an inch)! The only other thing I can think of is the springs themselves, which I think involves taking at least...
by Simon.Gardiner
Sat Feb 16, 2019 4:04 pm
Forum: Ariel Talk
Topic: Simes' FH Rebuild
Replies: 162
Views: 4748

Re: Simes' FH Rebuild

Standard s/arm oil tank, I've got one that is quite bowed out and one that is quite flat..... On my bike the tank can twist quite a lot about the 'horizontal axis', if I loosen the bolts it drops against the mudguard at the bottom (to the extent that the edge of the tank has previously cut quite a d...
by Simon.Gardiner
Sat Feb 16, 2019 3:56 pm
Forum: Four stroke
Topic: Plunger suspension ride height adjustment
Replies: 26
Views: 340

Re: Plunger suspension ride height adjustment

I'd say that suspension was letting the bike sit much, much too low. Have you got something in upside-down?? Here's a pic I nicked from another Square that had details posted here (I 'borrowed' it to show the rear brake cable routing but I think it also shows the suspension with the weight of the bi...
by Simon.Gardiner
Wed Feb 13, 2019 3:32 pm
Forum: Ariel Talk
Topic: Simes' FH Rebuild
Replies: 162
Views: 4748

Re: Simes' FH Rebuild

For info re. earlier discussions on worn crankshaft splines, there's a recent informative thread about this on the A7/A10 forum.
https://www.a7a10.net/forum/index.php?topic=13920.0
(One of the 'treatments' would probably raise an eyebrow or two in these parts!)

SG
by Simon.Gardiner
Sat Feb 09, 2019 12:32 am
Forum: For sale/wanted - Bikes
Topic: 3-cylinder Arrow also at HH auction
Replies: 0
Views: 122

3-cylinder Arrow also at HH auction

Three-cylinder Arrow, looks very interesting, if only I had the space! https://online.handh.co.uk/m/lot-details/index/catalog/111/lot/43798/?url=%2Fm%2Fview-auctions%2Fcatalog%2Fid%2F111%2F%3Fpage%3D1%26view%3Dlist%26key%3Dariel%26sale%3Dundefined%26cat%3D2%26catm%3Dany%26order%3Dorder_num%26xclosed...
by Simon.Gardiner
Mon Feb 04, 2019 3:15 pm
Forum: Ariel Talk
Topic: bike identification
Replies: 23
Views: 885

Re: bike identification

The mandatory motorcycling gear of the time was clearly gauntlets!

A great picture - and lots of detail, even the tyre pump.

SG
by Simon.Gardiner
Mon Jan 28, 2019 12:42 pm
Forum: Four stroke
Topic: 1950 VB oil pump problems
Replies: 26
Views: 582

Re: 1950 VB oil pump problems

No effect at all Bevan - it's a back-up to the ball-valve in the pump (although if you did have an oil pressure gauge it wouldn't show any pressure without it).
I think Ariel left it out themselves for a few years.

SG

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