Friday 24 April 2020

Burner tray fitted

The burner tray is now fixed in position.  When trying to assemble the tray to the boiler which was already in place, the trick of raising the front end of the boiler did not work well for me.  The problem turned out to be the right-angle fitting on the front left hand boiler drain fitting, together with the handbrake pulley being too high.  During assembly, the burner tray needed to slip past the fitting and above the hand-brake pulley; the fitting was wider than the threaded pipe (also known as a "nipple" I have found out).  The cut-out for the pipe was made wider so as to slip over the fitting. All the other cut-outs lined up without any further fitting.  Dis-assembly involved unscrewing a nut on about 18 inches of threaded rod.  This sort of job used to be reserved for apprentices, but this is a one man show without any apprentices available. Everything slotted into place as the nuts were tightened on the stays.  The burner was a fraction of a cm above the pulley mounting, and there was a good clearance between the tray and the chassis.  I couldn't see any way of providing a good seal between the burner and the boiler, although the fit was fairly good.  I found it useful to use the metal frame as a support for two rope cradles to take the weight of the burner tray; each cradle being made from rope with a bowline at one end and a trucker's hitch at the other end to make an adjustable loop.

Saturday 18 April 2020

Boiler is in position

My next milestone has been achieved.  The boiler is now sitting proudly in the middle of the Lyka.



The biggest problem was the lack of headroom in the garage.  This meant that the rear cross member of the car had to be removed to let in the boiler, which could be raised no higher before the lifting gear hit the garage roof.  It looks less than the progress really is, because the side panels and water tanks have been taken out to enable access to the boiler and its mountings.  The final manoeuvring needed the help of a car jack under the boiler to take some of the weight while it was wriggled into place.  Following the experiences of other builders, there is a small block under the front of the boiler to enable the burner tray to be moved into place. 
It seems that in spite of trial fittings 'on the bench' the smoke hood, boiler, and boiler cladding will not meet in the intended positions - the hacksaw will have to come out again. 
The smoke hood has tabs cut which will be bent back to make a rearward opening exhaust.  That is a future development.


Time to think about next steps.
The towing A-Frame can be completed to enable the car to pull the Lyka as a trailer.
The burner, burner tray and pipework need to be assembled and sealed. Thanks to STW for helpful advice on their forum.
The chain will need to be fitted. The chief inspector has found a way round the 2m isolation rule, and visited the workshop.  His report was on the lines of "Where is the chain, Grandpa?"

I have been putting off bleeding the brakes, which have to be done.
The side panels and water tanks will be put back. I measured the tanks and, as noted by others, we have about 30 gallons capacity on board, giving a range of about 30 miles.
The bodywork and seat have been received and can be assembled and put into place.
A lot of paintwork will need to be repaired for chips and wear and tear.
My control panel will be mounted conveniently for the driver.

Before steaming, we shall need supplies of some consumables, including:
steam cylinder oil;
feed water conditioner to prevent scaling and enable removal of detritus via a blowdown;
diesel bug inhibitor, to stop the growth of algae and bacteria which can build up and clog fuel systems.  Modern diesel can include quantities of bio-diesel which is reported to be more susceptible to such contamination.  Diesel fuel is cheaper at the petrol station than buying paraffin in 4l plastic containers.

I think a collection of Jerry cans for spare water and fuel is also called for.