Ariel Owners MotorCycle Club

Use heat to expand the piston more than the rings - nothing fancy to start with, just boil it in water with some washing-up liquid for a while and see what happens.
Avoid industrial cleaner -it can eat the alloy.
Bob.

Thanks Nev, The nuts will have a plain shank where the wheel adjuster rubs and I'll make them a bit wider than normal. There should be plenty of thread in there. They will be lathe turned, not cut with a Tap. I saw some EN16 Hex, but it was too small. I'll keep looking. Acquiring steel stock is anot...

A question for all you Metallurgists out there . . . I will be making wheel spindle nuts for an Ariel 'LF' (using a hub that may or may not be from a Triumph Cub). The hex bar I have, and other stuff I've seen, is "EN1A - Leaded". The technical descriptions say it is used for nuts, studs e...

Thanks Bob, Does the O/S (right-hand) end of the wheel spindle have flats to prevent it from rotating ?? The drawing I'm working from has flats top and bottom leaving the spindle fitting a slot of 10.2mm. The other end does not have flats and therefore fits a slot of 12.7mm. Do these slot heights ma...

As you have probably spotted, I will be making a rear wheel spindle that will fit a Triumph T20 (Tiger Cub) hub into a 1929 LF frame. This is not my bike, I am doing this remotely for a new Club Member. Could someone post up a picture or two of the rear frame / rear wheel mount of an LF please ?? Th...

According to my Thread Charts, Cycle Engineers' Institute (CEI) - which metamorphosed into British Standard Cycle (BSCY) used a 60 degree thread angle. Which makes 1/2" UNF / CEI the same. Some sizes were dropped when the new standard was compiled. My chart doesn't show 1/2" CEI. Confused ...

Right, The threads mentioned have the following pitches: British Standard Whitworth (BSW) = 1/2" x 12 British Standard Fine (BSF) = 1/2" x 16 Unified Fine (UNF) = 1/2" x 20 British Standard Cycle Thread (BSCY) = 1/2" x 26 BertieB is using a Tiger Cub rear hub in his 'LF'. I have ...

Thanks folks, As I thought - BSCY it will be.

All the dimensions on the CAD drawing are in MMs ( ), fortunately I have a couple of Tiger Cub spindles and will use them to get the accurate dimensions.



I'll try to get Bertie's approval before I proceed though .

Bob.

Glad to hear that you are on the mend and hope you make a full recovery and get back on the bikes. From (thankfully limited) experience, the priorities after an 'off' are: 1. Rush to the bike. 2. look for your passenger. 3. Eventually think about yourself. :lol: Chin up - and keep posting on here, w...

Folks, BertieB sent me his CAD drawing and it shows the wheel spindle threads as 1/2" Whitworth. I think this would be too coarse and should maybe be 1/2" BSF or BSCY. I have send him two PMs but they're still sitting in my outbox so he isn't watching this site at the moment. Any thoughts ...