What goes in this hole then?

[fido]

That looks like it might be a  clutch pushrod adjuster screw but I don't think it is an A10 one. I wonder if it could have rolled off a bench and landed on your bike at some point in the past?

[bsa-bill]

looks a bit like one of the pins the pump gears spin on, but not exactly as far my memory serves.
Surely no way it could have got from the pump into the oil pipes on its ownsome though.
Looks a bit more like one of the studs that hold the pump on, perhaps snapped off by PO but why stuff it up one of the pipes??
It would certainly do every bit as good a job of oil restriction as red Hermatite.

More mystery

All the best - Bill

[Mosin]

Just to clarify - it wasn't actually stuffed into the pipe. That is just the job I was doing when I disturbed it. I also have the timing cover off, so it's possible that it has come from somewhere inside there and I just disturbed it with my hand/the spanner as I was tightening the hose back onto the back of the oil tank.

I don't think that it is a cluth push rod adjuster - the diameter is way to narrow for that. It's only a couple of mm accross at most.


Simon

[nigeldtr]

simon, l think you have started a quiz with what looks like a long lost Dingsbums (lovely German word for a thingamabob)

Andy - no problems.

Nigel

[beezalex]

Generator strap pin.

[Mosin]

Generator strap pin.

Good guess Alex, but my Generator strap pin is still in place. And also this pin I have found is only just over an inch long. In fact, its dimensions are 25mm x 4mm. The generator strap pin is much longer than this.

I am currently thinking that it must be designed to screw into something from one end (using the phillips slot at the threaded end). The fact that the other end has a slight chamfer would seem to back this up and to my mind it looks like some sort of an adjuster to regulate the flow of something (liquid/oil/air?) passing through whatever it is designed to be screwed into. I took the carb off weeks ago and it is nowhere near the bike, so it can't be that. I suppose it could also be an adjuster to regulate the movement of some other moving part (a lever or something)? I am at a loss.

The one thing that I DO know is that I am reluctant to continue reassembling the engine until I have positively identified this part. I'd hate to get it all back together only to have to strip it down again when I find out what it is.

[fido]

I think if it was a BSA part one of us would have recognised it.

[chaterlea25]

Hi Simon,
I dont believe its from your BSA,
As far as I know there are no phillips/pozi screws on A7/10's
Can you identify the thread?
Cheers
John O R
PS did you poke something through the oil pipes? I just had a thought did some PO push one of those hidden anti syphon valves up the oil pipes?????

[a10 gf]

nigeldtr wrote
'long lost Dingsbums'
My grandmother used that expression for any small thing she could not immediately identify.
  +  lol

sorry for the offtopic

[Mosin]

*clears throat and looks at feet bashfully before typing*

Well chaps, the good news is that I now know what the mystery pin is. The bad news is that I appear to have wasted everyones time for the past 24 hours.

This morning I picked up my trusty adjustable spanner to do a job on a different bike (yes, the same spanner that I had been using yesterday when I dislodged the mystery pin). I immediately noticed that the adjuster worm on the spanner was very loose. Almost as if the pin which was supposed to go through it and fix it to the main body of the spanner was missing..... Sure enough, I screwed my mystery pin into it and needless to say it fitted perfectly.

I will now shuffle off into a corner somewhere and stop wasting people's time. By all means, please feel free to rip the *** out of me mercilessly for the rest of the day.

Simon

[RichardL]

First, I knew that thing looked familiar.

Second, it was a good excuse to review the blow-up drawings.


Third, no need for extensive embarrassment, though, I suppose some is unavoidable. It is far from the only and, I think, far from the craziest goof someone here has made.

Fourth, hey, at least your wrench is working.

Regards,

Richard L.

[A10Boy]

Simon, I think you deserve some embarrassment for that so here's a question;

You mean to say that you were actually using a frikkin ADJUSTABLE SPANNER, what?s more a poorly maintained ADJUSTABLE frikkin SPANNER on your beloved BSA ??

Tut Tut....

 

[bsa-bill]

Join the club mate

To be honest I'm pleased it not just me

All the best - Bill

[Mosin]

OK, This evening I have refitted my lovely clean rebuilt oil pump together with the timing cover and its new gasket.

Filled with enthusiasm, I then embarked on putting the barrell back on. Three hours later I have still not managed it, despite having borrowed a set of piston ring clamps. I just don't seem to be able to get the barrells to slide evenly down over the pistons. I either get them going down unevenly and sticking, or else I end up with the clamps too slack and them just dropping down and releasing the rings before I have managed to get the barrells over them.

I have now given up for the evening before I end up breaking something.

Are there any tricks or tips that anyone can offer me on how to go about doing this job?

Simon

[rocket man]

h iSimon i tried  a good trick i tied the barrels to the frame and pushed the pistons
up into the barrels very slowly pushing each ring into them one at a time you might
need someone to help you as its very tricky or you could use your ring clamps
which will make it easer



dave