This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
Messages - Orcade-Ian
1
« on: April 14, 2024, 10:03:57 AM »
Ash, I did a similar although not as critical job as a Bomber on my Ajax bench grinder/tool sharpener. It has a normal grinding wheel on the left and the motor shaft at the other end drives a series of rubber rollers to reduce the speed for a wet-stone for wood chisels and the like. Quite heavy springs keep the rollers in contact and they end up with grooves and flats which prevent the white wheel from turning. I was able to machine the damaged surface true again with a high positive rake on the HSS tool and top speed on the lathe (1000 rpm - wish it had more). As you say, the rubber was rock hard on the surface but just right underneath.
I also now use belt dressing on the rollers - but that's of no use in your application.
Ian
2
« on: April 13, 2024, 08:00:28 PM »
So sorry for your loss Ted but pleased that there was a celebration of his all too short life. Probably due to the fact that I have attended quite a few funerals recently I think it's so important to look upon the positive effects his life had on others, especially his brother. Having worked in a Spinal Injuries unit for many years I can only begin to imagine what effect 24/7 care for someone with tetraplegia has on a family. I'll raise a glass to your (unknown to me) soldier!
Ian
3
« on: April 13, 2024, 07:43:51 PM »
someone up in Shetland is selling a Myford laithe just now
If you are in the market for one and familiar with lathe work - or keen to learn then they are a great asset. Unfortunately Myfords usually sell for a lot more than the larger machines - mine is still 3 phase which obviously puts most people off but I use a Transwave converter. Ian
4
« on: April 13, 2024, 05:03:29 PM »
I agree Dave,
I always had access to a lathe (well, from my early 20's anyway) and bought my first Myford in about 1978. Later moved on to a Harrison L5 and then the Harrison 140 in the early 90's, which I still have. I bought this one when the College I was working at closed one of the workshops and it came with a hell of a lot of stuff, including the collet attachment. I use it almost every day! The other thing that gets almost constant use is the Startrite bandsaw - even just making a wooden frame cradle to support the 550 while the front wheel was removed. Those will be the last to go of all my pieces of equipment!
How else could you have enlarged that washer - apart from filing?
Ian
5
« on: April 13, 2024, 12:51:45 PM »
Just a quick note to tell you of a workaround. I needed to reface a very badly pitted exhaust valve from a Fairbanks Morse stationary engine - 7/16" diameter. I didn't want to use a 3 jaw as I knew it would chatter (slightly worn jaws) but only had a 12mm 5C collet. Slid some heat shrink sleeving on the valve stem and warmed it up to shrink it. Fitted the collet perfectly and produced a lovely finish on the valve seat face! The heat shrink sleeving is so thin and the collet has so much radial contact that it was a very rigid set up.
I used to be an engineer but I'm OK now!
Ian
6
« on: April 13, 2024, 12:13:38 PM »
C'mon,
You know I'm only allowed 3 rants each day and it's past midday. When they slap a tax on aviation fuel, ONLY THEN might I sit up and take notice. If Ursula Von Der Leyen can fly by private jet from Edinburgh (where she was staying) all the way to Glasgow <40 miles for that COPOUT meeting each day then I'm not bovvered! But coming from Yorkshire, I try not to waste anything.
Ian
7
« on: April 12, 2024, 01:17:45 PM »
Porridge oats Johnny - made with bere meal, you should know that!
Ian
8
« on: April 12, 2024, 01:10:58 PM »
Looks like the basis for a good bike, especially now it's running on all four. Is that how it came in the pic or have you removed parts? Twin stay front guard and different tank from mine - looking forward to seeing your progress with it.
Ian
9
« on: April 12, 2024, 07:49:44 AM »
Welcome Mike,
I too have a 75/76 US import 550, shiny orange and bought from a well respected member on this very helpful forum. Used it a while last year and just rebuilt the front wheel with new rim, plated spokes and new tyre, so ready for the season! As the others say some pics of yours would be welcome and there will be plenty of help available.
Ian
10
« on: April 09, 2024, 03:04:05 PM »
Hi Ted,
I bought DID from DS, two options for the front OEM replacement and DID original (search me!) I went for the cheaper option and only the cheaper option was available for the rear. They are nowhere near the quality of the originals, they have a 'kick' at the weld - almost impossible to true out and the normally flat area between the outer edge and the centre spoke well is not flat but has a bit of a variable hump. I am being super critical as nothing is more than 1/2mm out and the tyre will take care of all that. The worst part is the side script.
[ Guests cannot view attachments ]
Totally unnecessary - what was wrong with the discreet logo of times gone by?
You might just be able to see the non flat bit but difficult to get the light right
[ Guests cannot view attachments ]
Surely Mother Honda couldn't have insisted that DID didn't make them as original?
BTW, the supposed original, (read much more expensive) front rim also has the side script!
Ian
11
« on: April 09, 2024, 11:13:17 AM »
By coincidence, I'm putting a new rim on the front of the orangutang (550F1) - one of those awful DID jobs from DS with that side script, so I have just plated the spokes and nipples. Checking the 550 spokes they are as near as damn it 4BA - but not right. BA is a threadform usually used on brass electrical fittings and had a metric based pitch - no idea why. So I have no idea what this thread is exactly - British Standard bottle top, lawn mower and chastity belt thread as my old metalwork teacher called any thread he couldn't identify.
Ian
I've put the horrid side script on the left of the bike on both wheels, so at least it's not as visible when on the side stand!
12
« on: April 08, 2024, 09:18:18 PM »
Johnny,
Spoke threads are often rolled not cut, which means they end up a slightly bigger diameter than the spoke shank. Cutting a thread into the shank would be weaker than a rolled thread. Not sure if Alex has a thread rolling rig but worth asking him.
Ian
13
« on: April 07, 2024, 04:58:29 PM »
You can do what the MOT man does - a long piece of straight, wide timber with a cut out for the stand, not forgetting the front wheel is narrower than the rear. You can add a strip to the edge which contacts the front wheel - half the difference between the front and rear tyre widths.
Ian
14
« on: April 07, 2024, 10:38:55 AM »
Just a dream for me! Apart from a 1500 mile round trip, 2 ferries and B&Bs, we will be away in Austria again - in the car though this time. It would have been great to have met up with some of you folk - another time perhaps? The last time we were in Leiston we were collecting 400/4 stuff from DS in the early days - a complete genuine 400/4 exhaust and silencer set me back £150! Then went to visit Mick Walker for some Ducati stuff and his brother Rick not far away in Lynn.
Ian
15
« on: April 05, 2024, 06:44:16 PM »
Hello again,
I think Colin Nicholson is still Chairman, so I'll PM you with his email address, I'm sure he can point you in the right direction for help. I'm not a 750 buff but as you can see, there are lots who are! Apologise to Colin for 'dropping him in it. I'm away in Germany and Austria so will miss the big show at the Clickimin in June.
Ian
|
Show Posts