Ariel Motorcycle Club North America Forum

This crankcase was the original in my 1953 Sq 4 MK II. It suffered a rod failure due to oil starvation. A hole was NOT knocked in the crankcase, but there was a small crack, and on disassembly it was discovered that a previous repair had been done, certainly from a previous rod failure. I spent some...

I have a timing side crankcase half for sale (this is NOT particular the mate for the timing side half also posted here.. purchased from separate sources). The case has clearly suffered from the dreaded rod failure so common among Square 4's. A repair has been made of the hole that was created at bo...

After I blew up my 1953 Sq 4 Mk II, I purchased this 1/2 case on eBay. It is solid, unmolested, and appears to have never suffered any catastrophic internal failure. It does look as though someone had the exterior chrome plated in the past, and that finish is loosing a bit of its luster now. Later, ...

I have 3 pistons and rods removed from my 1953 Ariel Sq 4 Mk II. (The 4th set is now MIA). These are in beautiful condition.. According to the previous owner, he rode the bike less than 1,000 miles after installing these. But, then I lost the 4th rod, and felt compelled to buy a complete set of 4 fo...

that is a real beauty Luis.
Thanks for sharing!

I encourage all users to post photos and descriptions of their bikes in the OWNER'S BIKES Section
Moderator

Paul, I am in no way advocating that the Yahoo group be abandoned.. I know there is a lot of useful history there that should be preserved. However, in light of many rumors of the possible demise of group support by Yahoo, it might be appropriate for owners to shift attention to a proven platform us...

Thanks Simon!
I've been a regular visitor to the UK-based forum, and have long-lamented the absence of a similarly active site here in the 'States'
I look forward to your regular contributions. I know you have a lot of technical expertise to share!

Welcome. Nice to hear from someone 'down under'
We look forward to hearing of progress with your projects!
Phil - Admin

I acquired my bike in 2016. Within a few months I had managed to break a rod, and then spent well over 2 years rebuilding the engine and restoring the bike. Photos here were taken just before the "incident". My bike runs strong, starts on first or second kick, and handles beautifully. A joy to own a...