Well that worked!
It would appear that the work on the burner paid off. Yesterday we had a fine day’s trip on Ullswater, from the marina at Watermillock, all the way to Glenridding without a single problem – virtually the full length of Ullswater. (About 3½ hours steaming). The first time we have managed the full length of the lake!
We took most of it at a leisurely pace, with a couple of bursts of speed to avoid yachts out racing…. Continue reading
Well, a good day! Befur went back on the water yesterday, and it would appear that the work over the winter worked well.
Another snowy day in Heggerscales
As April begins the weather returns to snow and cold, so it seems a good time to provide a progress report.
We are working towards getting Befur into the water for 2019 – I was hoping for April 1st, but (as always) I am behind plan. However, it really is too cold to be on the water, so we will remained chilled about our position.
So, here is a list of the main activity of the last few weeks:
This post continues/concludes the story of manufacturing a new crank for Befur from the last post.
Here we can see the re-assembled engine with new crank. We are still to install all the ancillaries (reversing gear, lubrication, condenser and feed/air pump & alternator drive.)
It took 6-man days from receiving the crank back from the grinders to reach this stage.
Once we have tested it on air, we will reinstall it on the boat and undertake this year’s boiler test and check all is as it should be.
Machining Crank Pins
Those of you who have been following Befur’s progress will know that our first year in the water was marred by the failure of the crankshaft in the Leak Compound engine I built.
This post deals with the manufacture of a replacement, and the results of my research/experience into the approaches to building cranks for “small” (<20HP) marine steam plants.
Methods of Manufacture
Just a note to say that Befur is out on the hard now, so we can commence the over-winter work.
We made about 5 or 6 trips on the lake in the season, and spend quite a few days on the mooring spannering the various issues we had into submission.
However, just before we fetched her out the first named Storm of the year “Ali” produced some impressive weather, with gusts of over 70mph on Ullswater. We stopped by to see how she was doing on her mooring – here is a video…
The main task is to find the source of all the knocking and rumbling (which I still think is most likely a fractured crank) and then tackle some other outstanding issues. This list is to remind me what is to be done:
- Inspect/fix/remake the Crank
- Cure the leaks between HP cylinder and Valve Chest
- Make some Gauge Cocks (to damp the pressure surges in the gauges)
- Tidy up the fittings for the stern-tube cooling feed
- Re-paint antifouling (as quite a lot fell off!)
- Inspect/test all the vacuum side for leaks as it’s still quite low (~10-15 inches hg)
- Make a new ball-cock valve for hotwell (plug-cock type)
- Maybe make some drawers for the galley
- Fit a stern light
- Think about remaking the cockpit sole to improve access to stern-gland etc.
- Fit a seacock to the blow-down line (to allow the flexible hose to be removed when afloat)
- Install a skin-fitting for the bilge ejector…
- Make a whistle that whistles!
- Attend a VHF course, to get my license 🙂
As Lou explained (as I sat in the land-rover feeling quite defeated) “It’s like when you built the racing bikes/cars – you can’t expect to show up at the circuit and have it all work perfectly the first time you race it. There is always going to be development work.”
…and I guess she is right!
This post firstly relates the trips we have made so far, and secondly attempts to provide a balanced view of the successes and failures to date – to help other builders.
Trials (and tribulations)