Author Topic: Chris's Holly Pumping Engine Build  (Read 46348 times)

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1155 on: September 15, 2021, 12:26:24 AM »
Geez Chris you're flying thru this!     Rods look great!

Dave
Thanks!  Only 4 or 5 more months, give or take 4 or 5!    :cheers:

Offline Roger B

  • Global Moderator
  • Full Member
  • *****
  • Posts: 5021
  • Switzerland
Re: Chris's Holly Pumping Engine Build
« Reply #1156 on: September 15, 2021, 05:06:15 PM »
Splendid as ever  :praise2:  :praise2:  :wine1: I keep having to remind myself of the machines you are using  ::)
Best regards

Roger

Offline scc

  • Full Member
  • ****
  • Posts: 965
  • Lancashire, UK
Re: Chris's Holly Pumping Engine Build
« Reply #1157 on: September 15, 2021, 09:14:32 PM »
 :popcorn: :popcorn: :popcorn:Still lost for words :praise2:       Terry

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1158 on: September 15, 2021, 09:59:47 PM »
Thanks Terry/Roger, great to have you guys along. Nothing done on the engine today, been puttering around on other stuff and out for long lunch with friends.

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1159 on: September 16, 2021, 03:38:11 PM »
This morning got back in the shop again and trimmed some square bar down to the dimensions for the piece at the big end of the con rods:

That was then cut into three pieces, each trimmed to fit the openings in the forks, and the assembly drilled for the cross bolt. At the big ends there is just one bolt, at the small ends there will be two.

Above these blocks will be a wedge piece with short screws at either end to position it to tighten the bearing halves.

Offline cnr6400

  • Full Member
  • ****
  • Posts: 1177
Re: Chris's Holly Pumping Engine Build
« Reply #1160 on: September 16, 2021, 04:40:34 PM »
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Offline Don1966

  • Full Member
  • *****
  • Posts: 6476
  • Morgan City, LA (Along the Gulf Coast)
Re: Chris's Holly Pumping Engine Build
« Reply #1161 on: September 16, 2021, 05:56:47 PM »
Your still the man DOG!. :Love:



  :drinking-41:
Don

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1162 on: September 16, 2021, 06:19:21 PM »
Voof!


 :cheers:

Offline gary.a.ayres

  • Full Member
  • ****
  • Posts: 1224
  • British Isles & sometimes France
Re: Chris's Holly Pumping Engine Build
« Reply #1163 on: September 16, 2021, 09:48:23 PM »
Wow - this has come on! Looks amazing...

And with a little color on the lay shaft brackets:

Next up? Um, think I am going to work on the con-rods and crossheads next, then come back to the drive shaft for the lay shaft gears - already made the bevel gears, but the brackets and bearings need to be made on that. Thinking that I should get the conrods made before there is too much blocking access to them....

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1164 on: September 17, 2021, 02:36:03 PM »
Got a start on the U-shaped caps that go on the small ends of the con-rods. Making them just like the big end ones, but these I am leaving connected together for better holding in the vise. Once the first is done, it will be cut off so the second two can be done together. Started by drilling the inside ends of the slot, then sawing out the bulk of the metal before milling to finished size.

First one taken out to size, ready to cut off the bar



Offline Kim

  • Global Moderator
  • Full Member
  • *****
  • Posts: 4866
  • Portland, Oregon, USA
Re: Chris's Holly Pumping Engine Build
« Reply #1165 on: September 17, 2021, 04:22:16 PM »
That's neat.  I like the way you gang your parts together like that.  I can see how it makes holding them easier.  I'm going to have to learn to do that someday!  Maybe when I grow up I'll learn how!  :popcorn: :popcorn:

Kim

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1166 on: September 17, 2021, 04:56:27 PM »
That's neat.  I like the way you gang your parts together like that.  I can see how it makes holding them easier.  I'm going to have to learn to do that someday!  Maybe when I grow up I'll learn how!  :popcorn: :popcorn:

Kim
Something else I learned from Kozo, I think. Even on single parts, leaving them on the longer bar makes clamping in the vise a lot more secure.  And growing up is highly over-rated - acting like a kid is a lot more fun!!  :Lol:

Online crueby

  • Full Member
  • *****
  • Posts: 12895
  • Rochester NY
Re: Chris's Holly Pumping Engine Build
« Reply #1167 on: September 17, 2021, 07:53:17 PM »
All three end caps are done and attached to the con-rods:

Next can start in on the bronze bearings....

Offline RReid

  • Full Member
  • ****
  • Posts: 347
  • Northern California
Re: Chris's Holly Pumping Engine Build
« Reply #1168 on: September 17, 2021, 08:26:33 PM »
Very Nice! :ThumbsUp:
Regards,
Ron

Offline ddmckee54

  • Full Member
  • ****
  • Posts: 411
  • We're having fun now --- or so I've been told.
Re: Chris's Holly Pumping Engine Build
« Reply #1169 on: September 17, 2021, 10:21:18 PM »
Chris:

What locks the set screws on the adjusting wedges in place so they don't vibrate loose?  More elf-spit, or a lock nut?  Those wedges are going to get a hammering, even if this is just a model.

Don