Great photos and I love that earlier style Bolens Ride a Matic from the late '50s. I have not seen that particular model over here in the UK and thus is a real rarity.
Got harrows coming out of my ears Norm, I bought a brand new set of three a year or so ago for , I think £80.00p. I may use the large 'duck foot' tines to build a small cultivator though. I would like to have a go at building a 'Wheelhorse' size version of the 'Vicon' style reciprocating power harrow with it's own engine. at least I've now got enough spikes to do it.
p.s. The thing that spoilt the day was, I couldn't claim the 20p VAT back !
Not really foraging, but, went to the machinery sale Monday, saw this lot which didn't make the reserve, I bought it afterwards for the reserve + vat, total £1.20p
five boxes of harrow points, Don't know what I'll do with them though.
What PCD are the wheels Norm, I used JD mower deck spindles for my C121 front hubs. I'm sure I have some more, I think the pcd of these is around 100mm / 4"
the bearing size is 3/4" so they go straight on. You can alter the track by just turning them round. if you want to try them, PM me and I'll send you a couple.
Regarding a bit of play on hubs / shafts, if you have a decent lathe you could try 'knurling' the shaft to slightly increase it's diameter and also the rough finish gives a bit more grip. I used to do this to piston skirts on the old British bikes to cut down on piston slap ( 40 years ago ) when they were a bit worn.
I believe all these exhibitors are members of the 'Starting Handle Club' All photos were taken in their enclosure, dozens of stationary engines and bigger tractors also.
What happened to the original rod ? did it break or is it worn out ? If worn you could bore it slightly larger,and then possibly 'white metal' it, bore to just undersize then scrape to a fit.
Try 'googling' re- metalling bearings and 'Babbit' metal.If you have a fairly accurate drill press,and a bearing scraper you could probably manage without the use of a lathe or mill.
Not so sure about that as they used Villiers engines in their motor bikes. Particularly memorable the 250cc two stroke twin - either flat out or oiled up!
I remember a chap who had one with a 'Wal Philips' fuel injector in the sixties, no float chamber,just a rotary tapered 'groove' if my memory serves me correctly, if you forgot to turn the petrol off when you stopped,it all ran out into the engine fuel tank was a different shape to the bikes of that era too I seem to recall.
:thumbs: 
:D
Was your new truck your birthday present ?
:o
:wub: 
what sparkplug
in Ride On's
Posted
"Champion"
:D