Minnie blowdown bush

Minnie blowdown bush

This topic has 5 replies, 4 voices, and was last updated 5 September 2020 at 11:38 by Dave Halford.

Viewing 6 posts - 1 through 6 (of 6 total)

Author

Posts
4 September 2020 at 20:35 #494266
Mark B
Participant
@markb43031
I'm just seeking information from anyone who has made a 1" Minnie traction engine.

I am in the later stages of making the boiler and in the book there is a mention of a blowdown bush and it even includes a drawing of it. What I can't see i the book or the drawing is the location of it.

Looking at pictures online it looks like it goes on the throat plate very low down on the off-side.

Does anyone know the exact location as I really can't see this from the drawings.
Advert

4 September 2020 at 20:35 #2952
Mark B
Participant
@markb43031
4 September 2020 at 23:16 #494284
Richard S2
Participant
@richards2
Not an exact location needed, but preferably as close to the top of the foundation ring as practicable and in from the edge to clear chain drum and damper flap workings to aid maximum draining.

Mine works out to about 1/2" (12.7mm) up from the bottom of the foundation ring and 1/2" in from the wrapper side to the centre of the bush (mine is 7/16" did and comfortably clears the stay above it-

Your boiler is coming on well.

Edited By Richard S2 on 04/09/2020 23:17:42
5 September 2020 at 07:08 #494290
JasonB
Moderator
@jasonb
Mine sits about 1/2" in from the wrapper but is lower at about 3/8" up grom bottom of throatplate and is also a smaller OD. This is a Blackgates boiler. I tend to use it to connect a hose for air running.
5 September 2020 at 08:37 #494293
Mark B
Participant
@markb43031
Thanks for the pictures – this help a lot.
5 September 2020 at 11:38 #494324
Dave Halford
Participant
@davehalford22513
Mark,

If you checkout the photos in the boiler section it shows the bush hole drilled
Author

Posts

Viewing 6 posts - 1 through 6 (of 6 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- Midlands Model Engineering Exhibition
  Started by: alan ord 2 in: General Questions
- 1
- 1
- 4 March 2025 at 11:29
  alan ord 2
- What’s this for…no.8?
  Started by: beeza650 in: Beginners questions
- 10
- 17
- 4 March 2025 at 11:11
  Howard Lewis
- Taig lathe DC motor 1 2
  Started by: Peter Cook 6 in: Work In Progress and completed items
- 12
- 30
- 4 March 2025 at 10:49
  Michael Gilligan
- boring for crankshaft
  Started by: bricky in: Help and Assistance! (Offered or Wanted)
- 4
- 5
- 4 March 2025 at 10:45
  ChrisLH
- Clocktime
  Started by: Michael Gilligan in: Clocks and Scientific Instruments
- 3
- 3
- 4 March 2025 at 10:04
  Bazyle
- A” WEAVER “1CC DIESEL ENGINE 1 2
  Started by: KEITH BEAUMONT in: I/C Engines
- 8
- 30
- 4 March 2025 at 10:00
  KEITH BEAUMONT
- Continuing the Television theme …
  Started by: Michael Gilligan in: Electronics in the Workshop
- 9
- 16
- 4 March 2025 at 09:09
  Russell Eberhardt
- Dr Schlesinger
  Started by: ryan.carter848 in: Books
- 4
- 6
- 4 March 2025 at 08:29
  ryan.carter848
- Turning Question: Fine Chatter / Wave Pattern 1 2
  Started by: Nigel Graham 2 in: General Questions
- 13
- 30
- 4 March 2025 at 05:20
  Simon Collier
- Case hardening
  Started by: Garry Coles in: General Questions
- 7
- 10
- 3 March 2025 at 21:41
  Fulmen
- Warco WM18B CNC conversion
  Started by: Tomek in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 10
- 18
- 3 March 2025 at 20:56
  Tomek
- Use of a weighted cord for bullwheel indexing.
  Started by: Greensands in: Workshop Techniques
- 8
- 10
- 3 March 2025 at 20:51
  John Purdy
- Drilling on VMC Mill
  Started by: Vic in: Manual machine tools
- 5
- 5
- 3 March 2025 at 20:41
  old mart
- Lead-sheathed wiring – why? 1 2
  Started by: gerry madden in: Materials
- 24
- 28
- 3 March 2025 at 20:36
  old mart
- Bending Rolls
  Started by: Baldric in: Workshop Tools and Tooling
- 14
- 23
- 3 March 2025 at 20:23
  Julie Ann
- 3/16” BSF mill gib screws 1 2
  Started by: Graham Horne 2 in: General Questions
- 14
- 32
- 3 March 2025 at 20:13
  old mart
- Another lidl picture fail
  Started by: Ian Parkin in: The Tea Room
- 4
- 5
- 3 March 2025 at 19:25
  V8Eng
- Windows 11 Upgrade – non compliant machines.
  Started by: Peter Cook 6 in: The Tea Room
- 6
- 7
- 3 March 2025 at 10:01
  Howi
- Pivot hole bushing
  Started by: Plasma in: Clocks and Scientific Instruments
- 7
- 12
- 3 March 2025 at 09:13
  Circlip
- Slow Again? 1 2
  Started by: JasonB in: Website Questions, Comments, and Suggestions
- 23
- 50
- 3 March 2025 at 08:17
  SillyOldDuffer
- Always be careful
  Started by: Blue Heeler in: The Tea Room
- 2
- 2
- 3 March 2025 at 08:06
  Nealeb
- Strange German Lighter
  Started by: Vic in: The Tea Room
- 12
- 20
- 2 March 2025 at 21:21
  Fulmen
- Material to make studs – EN1A??
  Started by: flatline in: Materials
- 14
- 16
- 2 March 2025 at 19:24
  flatline
- Kelsey Media buys Mortons titles
  Started by: Colin Bishop in: Website Questions, Comments, and Suggestions
- 9
- 20
- 2 March 2025 at 19:19
  Colin Bishop
- Whistling TV
  Started by: Speedy Builder5 in: Electronics in the Workshop
- 5
- 7
- 2 March 2025 at 16:54
  Speedy Builder5

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

March 2025

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies