Tich drawings.

Tich drawings.

This topic has 4 replies, 2 voices, and was last updated 16 July 2010 at 09:36 by jason moore 1.

Viewing 5 posts - 1 through 5 (of 5 total)

Author

Posts
12 July 2010 at 09:22 #53321
Eric Cox
Participant
@ericcox50497
Should the threads on the Pump wrist pin be 7/64″ and not 7/32″ as shown

Is there any reason for the passageways on the pump body and bottom union to be reamed 1/8″ whilst in the top union it is drilled No.40 and what is the diameter of the horizontal passageway in the top union

A request, can small components be drawn 2 or 3 times full size for the sake of clarity.
Advert

12 July 2010 at 09:22 #38735
Eric Cox
Participant
@ericcox50497
16 July 2010 at 08:25 #53438
Eric Cox
Participant
@ericcox50497
Any comments.
16 July 2010 at 09:32 #53439
jason moore 1
Participant
@jasonmoore1
The threads on the wrist pin should be 3/32 or 7ba the end of the pin being machined from 7/64 to suit for a length of 5/32. The passageways on the pump body and the bottom union are reamed 1/8 to provide a seating for the pump balls. Note that while the bottom union can be faced off to provide a flat seating the 1/4 x 40 top hole on the pump body needs to be drilled 7/32 and then a flat bottom formed in the hole with the same sized D bit before tapping,being careful not to damage the seat with the tap. The horizontal passageway in the top union is No.40.
16 July 2010 at 09:36 #53440
jason moore 1
Participant
@jasonmoore1
One thing i forgot to say.The drawings also show the small end of the pump eccentric rod drilled 3/32,this is a mistake which should read 7/64 to match the diameter of the wrist pin.
Author

Posts

Viewing 5 posts - 1 through 5 (of 5 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
- Had Another Go 1 2 … 5 6
  Started by: Nigel Graham 2 in: CAD – Technical drawing & design
- 19
- 136
- 13 January 2025 at 18:16
  Nigel Graham 2
- Myford Super 7 clutch
  Started by: john fletcher 1 in: Help and Assistance! (Offered or Wanted)
- 7
- 7
- 13 January 2025 at 17:50
  Mark Rand
- Subscriptions – Going Forward 1 2 … 4 5
  Started by: JasonB in: Subscription issues and Digital magazines
- 35
- 107
- 13 January 2025 at 17:45
  simondavies3
- Mobile workshop
  Started by: Sonic Escape in: The Tea Room
- 6
- 9
- 13 January 2025 at 17:30
  bernard towers
- Fitting chucks to 7 x 12 type baby lathes
  Started by: old mart in: Manual machine tools
- 3
- 5
- 13 January 2025 at 16:03
  old mart
- Mill Power feed unit. 1 2 3
  Started by: Taf_Pembs in: Manual machine tools
- 21
- 58
- 13 January 2025 at 15:47
  old mart
- A rather old contributor
  Started by: Sam Stones in: The Tea Room
- 8
- 8
- 13 January 2025 at 14:20
  john fletcher 1
- Brian’s 1″ Minnie Traction Engine 1 2 … 13 14
  Started by: Brian Abbott in: Traction engines
- 38
- 327
- 13 January 2025 at 14:16
  Plasma
- Unkown micrometer manufacturer 1 2
  Started by: Tomk in: Workshop Tools and Tooling
- 12
- 28
- 13 January 2025 at 13:51
  Michael Gilligan
- Weiss 290 Lathe Power Issue
  Started by: thisdesignedthat in: Manual machine tools
- 5
- 7
- 13 January 2025 at 13:04
  Bo’sun
- Coal 1 2
  Started by: Michael Callaghan in: General Questions
- 21
- 44
- 13 January 2025 at 11:06
  duncan webster 1
- Family tree prog
  Started by: JimmieS in: The Tea Room
- 11
- 16
- 13 January 2025 at 10:00
  Nicholas Farr
- Discussion on the Future Direction of Model Engineer and Workshop 1 2 … 8 9
  Started by: Neil Wyatt in: Model Engineer.
- 60
- 217
- 12 January 2025 at 21:22
  Neil Wyatt
- Powder coating
  Started by: John MC in: The Tea Room
- 7
- 8
- 12 January 2025 at 19:32
  Bazyle
- Lurker looking to help somone
  Started by: peterhod in: Introduce Yourself – New members start here!
- 6
- 7
- 12 January 2025 at 19:21
  peterhod
- Making a flat spring
  Started by: David K in: General Questions
- 7
- 10
- 12 January 2025 at 18:55
  Diogenes
- new life for old chuck
  Started by: old mart in: Workshop Tools and Tooling
- 6
- 18
- 12 January 2025 at 16:31
  old mart
- Editing an STL file
  Started by: Paul L in: CAD – Technical drawing & design
- 8
- 16
- 12 January 2025 at 14:59
  Paul L
- Flashing Multiple LEDs at the Same Time
  Started by: James Alford in: Electronics in the Workshop
- 5
- 6
- 12 January 2025 at 12:57
  peter1972
- small boring head
  Started by: celso ari schlichting in: General Questions
- 4
- 4
- 12 January 2025 at 12:36
  Tony Pratt 1
- Motorcycle battery charging? Lithium.. 1 2
  Started by: Ian Parkin in: Related Hobbies including Vehicle Restoration
- 17
- 46
- 12 January 2025 at 11:40
  Michael Gilligan
- Vickers Inverted Engine
  Started by: JasonB in: Stationary engines
- 7
- 14
- 11 January 2025 at 20:18
  JasonB
- What Did You Do Today 2025
  Started by: JasonB in: The Tea Room
- 12
- 19
- 11 January 2025 at 18:37
  Diogenes
- Watch Cine Photography Microscopy in slowmo
  Started by: Ian P in: The Tea Room
- 2
- 2
- 11 January 2025 at 16:16
  Michael Gilligan
- Internal thread & taper in same hole
  Started by: Dell in: Workshop Techniques
- 9
- 21
- 11 January 2025 at 14:55
  Dell

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

View full reply list.

Latest Issues

Issue 4759

January 2025

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies