Member postings for Bob Johnstone

I'm so glad there are smarter folks than me on this forum. I never thought to try pushing the plungers through. I thought they were captive. Once they were out, removing the collars was a 3 minute job with an ordinary screwdriver. Cheers Daveb!

Now it seems that I've got a bit of a Franken-Myford on my hands, as the plungers and collars are two different shapes and sizes, and aren't interchangeable between the levers, although the exploded parts diagram in the manual shows them as the same parts (and part numbers) in both levers. Makes no never mind, as I intend making my own new plungers to suit.

I've hit another snag in my Super 7 restoration, and wondered if the ME hive mind had any experience or suggestions.

I'm trying to take apart the plungers on the reverse tumbler and back gear levers, as they are both bent and don't 'plunge' freely. The exploded parts list shows the problem part to be H57 (A3021)- plunger, but these are held in by two screwed bushes (H59). Now, I can make the new plungers, if I could only unscrew the collars, which have seized over time (and abuse).

Does anyone have a good idea of how to undo these things? It looks like they've already been beaten on with a screwdriver in their past, and I'm reluctant to do that again for fear of making the damage worse.

Is there a special tool, Myford proprietary or otherwise, that I should be looking for? Or do I have to customise something out of tool steel that I can pound on with the impact driver? Surely the factory had to have something to put them in with in the first place?

Any ideas guys?

Thanks for the advice, but the base coat wasn't sound enough (chips and scratches) to leave. I ended up leaving the stripper gel on for a few more days and then using oven cream cleaner (Cif) to scrub it off. The vast majority of it is gone, and now I can apply new filler coat.

I might have to go this route with other parts, and send some of the simpler parts to the sand blaster.

Yes it certainly looks very similar. I will have to have a further rummage in goodies box to see if I can find additional parts that look like they belong to it. As it stands, it looks as if the base is missing.

I'm in the early stages of the restoration of a Myford Super 7, and although I'm having success with stripping the grey (repaint) and original blue paint, the white primer/putty coat is proving to be the very devil to get off.

Does anyone here have any ideas of solvents/strippers that I can brush into the nooks and crannies of the castings to get it back to bare metal?

Before anyone suggests it, I have had some experience of sand blasting on previous machinery projects, and wasn't impressed. Damage to threads and bearing surfaces, especially on the headstock, is what is worrying. There's no guarantee that the sand blaster doing the job will be as careful as I would be of sensitive areas. I'm also not sure that they would be able to get into all those under cuts of the headstock and bed castings. Plus you end up shaking sanding grit out of the parts for months to come.

So the chemical removal route seems the most appropriate. Any advice from those that have gone before?

I recently acquired a Myford Super 7, and this dividing head was amongst the goodies that came with it. I've searched the internet for images that might be able to identify it, with no luck. So I thought I would open it up to you more knowledgeable folks to help me. What is it? Does it fit a Myford lathe? More importantly, if it does, what am I missing? Any suggestions? 

Edited By Bob Johnstone on 02/11/2018 20:02:20

I've just acquired a Super 7, partially disassembled, and for the life of me I can't find a serial number on it. I've read through other threads on possible locations to no avail. I've even tried scraping paint of here and there, in the hopes that it might be buried under what looks to be a repaint. No joy.

The bed casting has the raised "Made in England" and "M3" (with a "5" just above and to the right) on the back, below the gap and the headstock.

I've looked on both edges of the ways, both front and back, on the tops of the ways, on the right hand end of the casting where the leadscrew hand wheel is, on the back machined surface (where the taper attachment bolts?) and underneath the feet. The only place left to look is under the headstock mating surface. Were serial numbers ever put there?

Any help would be appreciated.

Then I stand corrected. IT seems you guys are more knowledgeable about the law than I. I withdraw my offer to share what I have for free. You can go buy them from the copyright owner. Life was so much more friendly in the 20th century...

Hello everyone. I'm new to this forum, so please forgive any lapse of etiquette.

This seems to be one of the only, thread regarding the 1/12 scale Sanderson beam engine produced by Clarkson & Son.

Some time ago I was donated a box of stuff by an old engineer, and amongst the contents was a partially assembled Sanderson (mostly the cast parts) on a makeshift wooden base and a full set of drawings + a company catalogue. On closer inspection (after chasing all the spiders out) it would appear that all of the brass parts are missing; whether robbed for scrap or just separated from the kit and never passed along, at sometime in the past, I'll never know.

I've already helped out a chap in America by sending him the blueprints to copy and return. I thought I would 'spread the love' so to speak, and offer up the same to anyone on here who needs a set of original blueprints to work from. I know there is a new classified 'want' ad for these, but the site won't allow me, being a new subscriber, to view or respond to that person. Perhaps, if he's on here regularly, he will know who I mean and make contact through this thread.

There is too much missing from this model for it to be a feasible project for my retirement, as I now live in a tiny flat with no workshop space. So I will have to pass it along to someone with the facilities to resurrect it back to working condition. This isn't an advert for it - I don't want to break any forum rules, but if someone on here with more experience could advise me on how to go about selling what I've got, it would be most appreciated.