The 762 Club - LYNformation Bulletins
Aware that much development has been going on in the background, but little has been seen in public, and also that the pace of development is gradually increasing, the 762 Club introduced this on-line update feature in early 2013. This page, updated around once a month, will provide brief news snippets, images and general "Lynformation" on our progress. Please come back regularly for the latest updates.
(just hover your mouse over images to see captions, click to see a larger version where available):
See the current and archived versions of LYNformation here:
LYNformation Bulletin No.33: October
Welcome to LYNformation 33.
762 Club Open Day - Now Saturday 28th November
I am very sorry that we had to change the date of our big frame launch, but please please note the new date. It is:
Saturday 28th November starting at 09.30 and running to 13.30.
The event is open to members, friends, and family and we will be presenting as many of the parts as possible to demonstrate that we are 96% complete in terms of the finished kit of parts.
We will also be launching our new "LYN Assembly Fund" appeal.
Most of the 762 Club Director's will be present to answer your questions and welcome you. So please come and see the start of the final phase.
Here is the latest news from Robert Frost:
They have now successfully frozen in the last liner. PHEW! Also, all of the holes including those for the cylinder drain cocks have been drilled and tapped. The final work needed is to pressure test the cylinders. Once they have been successfully tested, they will leave Frost's and go for the liners to be contract honing. Finally, they will be delivered to Alan Keef and ready to be shown off at the 762 Club open day. There will then be the small matter of a very big bill to pay...
Here are a selection of photographs showing the liners being frozen in:
2. Side Frame profile machining
Last month I reported that we had purchased the replacement 80mm thick side frame profiles, and that these profiles were being water jet cut before being machined.
I am pleased to say that this work has now been completed, although with a few dramas on the way. Just before our two profiles were due to be started, our machinist in South Wales had a major equipment failure which halted their production for two weeks. Even worse for someone, the job that they were working on at the time was lost due to the malfunction of the machine. To have lost one set of 80mm profiles was desperately unlucky, to lose two would have been tragic. It was for this reason that we had to put back the open day for two weeks to allow Lowthers a fighting chance to complete the work.
The machine tool to intricately cut the metal is on a revolving head that can move to any angle. It is quite difficult to photograph, but here are a series of images to show the profiles being machined:
I am pleased to say, this expensive work has been completed and the two profiles have been delivered to AKL.
3. Main Frame Profiles
Now that all of the profiles are back at Alan Keefs, the final drilling of bolt holes has commenced. As of 7th October, all that remained to be completed was the final holes to bolt the cylinder to the frames and saddle.
On Friday 9th October, all of the frames will be delivered to Lowthers for assembly. If all goes well, the finished frames will be delivered back to AKL in 5-6 weeks' time, allowing a little spare time before the open day.
Here are a few images of the final drilling in operation:
4. Front Pony Truck
Good news here. The front pony truck is practically finished and will be
fully assembled and painted, ready to fit by the time of the open day. It
has gone together quite well and is another big, expensive sub assembly
Here are some images of the main components, painted and waiting final assembly:
5. Eccentrics and sheaves
I went down to Bideford last Monday 5th and collected the finished eccentric straps and sheaves from our good friends at Whiteland's Engineering. These beautifully made and machined parts are highly complex and very important.
They will not be easy to assemble, and we have asked Patrick Keef to prepare a quote to put these straight onto the driving axle.
Huge thanks to Whitelands for all their help, and although it worked out a bit more expensive than quoted due to one strap cracking, overall we are very grateful for all their contributions to the LYN project. Here are some images:
6. Reverser stand components
At the open day, the reverser stand will be on display more or less complete. There is an issue with two bearings which needs resolving, but essentially all of the components have been made and assembled.
7. Design and drawings
We are now right on the shoulders of the designers and will come to a halt soon until we get the final batch.
In batting order, we await:
- The rear pony truck
- Brake assembly including hand brake
- Cylinder drain cock
8. Fund raising and what comes next
We will have exhausted all of our funds to get to open day. It is difficult to accurately assess how much more we will need to complete the engine and finish the job, but it will be in excess of £100,000.
Between now and the end of the year, we will be trying to think of new fund raising ideas to expand the number of members and to introduce other
In terms of action, I have asked Alan Keef Ltd. to quote for the next three phases. These are:
These three items will be very symbolic and photogenic, whilst not being too expensive.
- a) Fit the eccentric sheaves and straps to the driving axle
- b) Make and fit the 4 horn guides, slippers, keep plates and adjusters
- c) Bolt the cylinders to the frame and saddle
- (and possibly fit the driving wheel sets and pony trucks to the frame.
Following on after these will be:
- Vacuum pipework (metal)
- Brake system
- Mount the boiler
- Start cladding and pipework
Not much, then...
See the current and archived versions of LYNformation here:
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(News page and last updated: 20 Sep 2017)
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