Ariel Owners MotorCycle Club

A lot of work just building that jig and getting it accurate...well done.

Lovely frame jig Vincent. Did you already have it or did you made it specially for this job?

You could just buy a new one from the Slovakia Klub: https://www.arielklub.sk/ads/2018/1770_stupacka_ariel_.jpg https://www.arielklub.sk/ads/2018/1770_stupacka_ariel_rh_zahnuta_1_.jpg https://www.arielklub.sk/ads/2018/1770_stupacka_ariel_rh_zahnuta_3_.jpg

Its looking good Paul - nice work. Whilst you are at this stage, can you glance at the front timing side bush and tell me whether the drain hole is present which runs down at 45 degrees back into the crankcase from the outside of the bush please? The engine I am working on has this drilling but my ...

So where did you pick up your PA speedo restoration skills Paul? Self taught? Progress is slow and steady on the 4G engine, but as I succeeded in assembling the crankcases today, and put the coupling gears on, I feel the worst is behind me...it will be all down hill from now on...not literally I hop...

Gui.dorey wrote:
BTW here are the main rivals of the Square Four.

Got to love BSA Slopers...have several friends with them and used to own a SV one. Solid machines. What year is yours?

Nice to see those photos Paul...and that adjustable reamer looks like a good quality one rather than the rather poorly made Indian ones... Is that a domed nut on the top of the timing chest? Is that instead of the rivet for the fibre rubbing strip? Just about to replace my strip, so quite interested...

That's quite similar to the later Mk11 with duplex chain. Looks fine. The later is longer. Have you checked that the chain has a 'ramp' introduction to the tensioner rather than a step? Certainly looks as though it has. Thanks Roger. Yes, there is a slight ramp at the start. I thing I might extent ...

Hello Paul, I like your idea of a line reamer tool. What clearance do you intend to use between your timing side bushes of leaded bronze and the crankshafts' journals? And how would you measure it? Bore gauge? Internal micrometer? I understand that the 1.5 thou used with Babbitt material may not be...

Very sad news.