{"id":1963,"date":"2022-01-01T16:41:53","date_gmt":"2022-01-01T16:41:53","guid":{"rendered":"https:\/\/update.wadmes.co.uk\/?page_id=1963"},"modified":"2022-01-01T19:40:37","modified_gmt":"2022-01-01T19:40:37","slug":"project-lilla","status":"publish","type":"page","link":"https:\/\/update.wadmes.co.uk\/index.php\/project-lilla\/","title":{"rendered":"project-lilla"},"content":{"rendered":"[vc_row css=”.vc_custom_1640460574481{border-top-width: 10px !important;border-right-width: 10px !important;border-bottom-width: 10px !important;border-left-width: 10px !important;background-color: #004c7f !important;border-left-color: #d3de66 !important;border-left-style: solid !important;border-right-color: #d3de66 !important;border-right-style: solid !important;border-top-color: #d3de66 !important;border-top-style: solid !important;border-bottom-color: #d3de66 !important;border-bottom-style: solid !important;border-radius: 30px !important;}”][vc_column width=”1\/6″][\/vc_column][vc_column width=”2\/3″][vc_row_inner css=”.vc_custom_1640460971395{margin-top: 15px !important;background-color: #ffffff !important;border-radius: 15px !important;}”][vc_column_inner][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”24″]\n

Lilla \u2013 An 0-4-0 Narrow Gauge Loco in 7 1\/4\u2033 gauge.<\/h1>\n[\/vc_column_text][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

I started this project a few years ago and due to other commitments and projects Lilla\u2019s build stalled.<\/h4>\n

Lilla is just over 58 ins. long and the buffer beams are just over 21 ins. wide with 7 1\/2 ins dia. wheels. Cylinders are 2 1\/2 ins. bore with a 4 ins. stroke.<\/h4>\n

The current COVID-19 situation has lead to more time in the workshop so a bit more progress has been made.<\/h4>\n[\/vc_column_text][vc_single_image image=”1966″ alignment=”center” css=”.vc_custom_1641055488068{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Painting the frames with etch primer.<\/h4>\n[\/vc_column_text][vc_single_image image=”1967″ alignment=”center” css=”.vc_custom_1641055573694{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

The first of several coats of red on the frames.<\/h4>\n[\/vc_column_text][vc_single_image image=”1968″ alignment=”center” css=”.vc_custom_1641055676930{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

The copper boiler is a big beast. A hydraulic test confirmed all is well and ready for the fittings to be made.<\/h4>\n[\/vc_column_text][vc_single_image image=”1970″ alignment=”center” css=”.vc_custom_1641055765573{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

I had a problem with the eccentrics \u2013 the straps kept moving sideways. So I modified the eccentrics to have two walls \/ sides instead of one.<\/h4>\n

Much better.<\/h4>\n[\/vc_column_text][vc_single_image image=”1972″ alignment=”center” css=”.vc_custom_1641055840074{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Showing more detail of the modification to the eccentrics.<\/h4>\n[\/vc_column_text][vc_single_image image=”1974″ alignment=”center” css=”.vc_custom_1641055916112{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Modification to the eccentrics completed.<\/h4>\n[\/vc_column_text][vc_single_image image=”1976″ alignment=”center” css=”.vc_custom_1641055998512{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Detail of the expansion links.<\/h4>\n[\/vc_column_text][vc_single_image image=”1978″ alignment=”center” css=”.vc_custom_1641056094382{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

I have spent the last few days pushing Lilla back and forth on its building stand track which is exactly one wheel revolution long. It is quite stiff.\u00a0 I have clearly identified it to be the cylinders need wearing in.\u00a0 I have kept a tally of 6900 revolutions or pushes\u2026 but it is much easier and I think the cylinders are nicely polished \/ worn in.\u00a0 Time to try it on compressed air. Cross fingers!<\/h4>\n[\/vc_column_text][vc_video link=”https:\/\/youtu.be\/Y-41FYm2ynU”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

This short video shows her working at approx 20 p.s.i.\u00a0 supplied from two separate compressors.\u00a0 It is not quite as smooth as I would like so the plan is to tweak one of the eccentrics a very small amount before locking them in final position.<\/h4>\n[\/vc_column_text][vc_single_image image=”1981″ alignment=”center” css=”.vc_custom_1641056219613{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

After getting the valve gear working as well as I could it was on towards a fully completed running and painted chassis.\u00a0 Next were the four drain cocks. Not your usual turned up ones \u2013 a little bit of fabrication and silver soldering was needed.<\/h4>\n[\/vc_column_text][vc_single_image image=”1982″ alignment=”center” css=”.vc_custom_1641056275964{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Boring out the tapered holes on the drain cock bodies. Each body started life as a 1 3\/4\u2033 length of 1\u2033 square brass with the threaded end turned first.<\/h4>\n[\/vc_column_text][vc_single_image image=”1984″ alignment=”center” css=”.vc_custom_1641056336811{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

This shows from top right:- machined and hardened taper reamer, three part finished bodies and finally top left a finished body.\u00a0 The square brass in the middle is\u00a0 for a short piece silver soldered into the body as a steam outlet.<\/h4>\n[\/vc_column_text][vc_single_image image=”1986″ alignment=”center” css=”.vc_custom_1641056458268{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

A finished drain cock. Taper cock in stainless steel. I was lucky to find a 1\/4\u2033 square broach which made the cutting of the square hole in the levers very quick and easy.<\/h4>\n[\/vc_column_text][vc_single_image image=”1988″ alignment=”center” css=”.vc_custom_1641056546060{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

A finished drain cock in situ. I decided to make all the pins in the levers from stainless steel silver soldered to mild steel levers.\u00a0 All nuts and washers and spring washers are also in stainless.<\/h4>\n[\/vc_column_text][vc_single_image image=”1990″ alignment=”center” css=”.vc_custom_1641056614215{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

The Reglus drill jig in use again.\u00a0 This time drilling for all the taper pins in the drain cock levers and linkages.<\/h4>\n[\/vc_column_text][vc_single_image image=”1991″ alignment=”center” css=”.vc_custom_1641056678075{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Drain cock levers and linkages almost complete.<\/h4>\n[\/vc_column_text][vc_single_image image=”1992″ alignment=”center” css=”.vc_custom_1641056733378{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Drain cocks finished \u2013 levers and linkages ready for painting.<\/h4>\n

I deliberately silver soldered the steam outlets so that they point approx 22 degrees out to the side in order to avoid the buffer beam.<\/h4>\n[\/vc_column_text][vc_single_image image=”1993″ alignment=”center” css=”.vc_custom_1641056815311{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

I have decided to use a stainless steel commercial ball valve for the regulator.\u00a0 A significant number of builders appear to praise them so we will see. The mounting pillar was an \u201cinteresting\u201d fabrication all silver soldered up. The tube-plate and the back-head are not quite 100% parallel to each other so I made a tapered washer to pull the main regulator shaft across a little.<\/h4>\n[\/vc_column_text][vc_single_image image=”1995″ alignment=”center” css=”.vc_custom_1641056870613{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

The ball valves are PTFE sleeved and some are rated at approx 180 C.<\/h4>\n[\/vc_column_text][vc_single_image image=”1996″ alignment=”center” css=”.vc_custom_1641056965612{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Completed assembly.<\/h4>\n[\/vc_column_text][vc_single_image image=”1997″ alignment=”center” css=”.vc_custom_1641057029386{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Checking the completed assembly before bending the split pins.<\/h4>\n[\/vc_column_text][vc_single_image image=”1999″ alignment=”center” css=”.vc_custom_1641057091073{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Above \u2013 set up for machining 45 degree angle for smokebox elbow.<\/h4>\n[\/vc_column_text][vc_single_image image=”2001″ alignment=”center” css=”.vc_custom_1641057175146{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

Above shows both halves machined and ready for a little fettling and silver soldering. I used a saw cut to insert a small piece of brass to hold the two halves inline.<\/h4>\n[\/vc_column_text][vc_single_image image=”2002″ alignment=”center” css=”.vc_custom_1641057236634{margin-top: 10px !important;}”][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”16″ text_align=”center”]\n

The completed elbow after silver soldering. The piece of brass is then filed away and a small radius will remove all signs of the corner piece.<\/h4>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=”1\/6″][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

[vc_row css=”.vc_custom_1640460574481{border-top-width: 10px !important;border-right-width: 10px !important;border-bottom-width: 10px !important;border-left-width: 10px !important;background-color: #004c7f !important;border-left-color: #d3de66 !important;border-left-style: solid !important;border-right-color: #d3de66 !important;border-right-style: solid !important;border-top-color: #d3de66 !important;border-top-style: solid !important;border-bottom-color: #d3de66 !important;border-bottom-style: solid !important;border-radius: 30px !important;}”][vc_column width=”1\/6″][\/vc_column][vc_column width=”2\/3″][vc_row_inner css=”.vc_custom_1640460971395{margin-top: 15px !important;background-color: #ffffff !important;border-radius: 15px !important;}”][vc_column_inner][vc_column_text responsive_text=”true” color=”#004c7f” font_size=”24″] Lilla \u2013 An 0-4-0 Narrow Gauge Loco in 7 1\/4\u2033 gauge. [\/vc_column_text][vc_column_text responsive_text=”true”…<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1963","page","type-page","status-publish","hentry","entry","no-media"],"_links":{"self":[{"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/pages\/1963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=1963"}],"version-history":[{"count":14,"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/pages\/1963\/revisions"}],"predecessor-version":[{"id":2003,"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/pages\/1963\/revisions\/2003"}],"wp:attachment":[{"href":"https:\/\/update.wadmes.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=1963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}