Author Topic: Rays Latest Engine - AKA Alyn Foundry RLE  (Read 8167 times)

Offline roughcaster

  • Full Member
  • ****
  • Posts: 13
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #75 on: April 01, 2021, 04:44:25 PM »
like

Online Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 14424
  • Hampshire, england.
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #76 on: April 01, 2021, 09:08:55 PM »
Nice  8)

Jo

P.S. The Admins discussed/voted on the idea of adding "likes" many years ago and it was voted down because it would cause resentment as it has on other forums.
Enjoyment is more important than achievement.

Offline propforward

  • Full Member
  • ****
  • Posts: 1221
  • MN, USA
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #77 on: April 01, 2021, 10:33:39 PM »
Nice  8)

Jo

P.S. The Admins discussed/voted on the idea of adding "likes" many years ago and it was voted down because it would cause resentment as it has on other forums.


 :ThumbsUp: :ThumbsUp:
Stuart

Offline RayW

  • Full Member
  • ****
  • Posts: 623
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #78 on: April 02, 2021, 11:27:43 AM »
Thanks all for your comments. I have now sorted out the contactor arrangement for the ignition system. It consists of a fixed insulated sprung brass contact mounted on the engine body, and a rotating contact, in the form of a Tufnol disc on the crankshaft, locked in position with a brass screw, the head of which acts as the contact point and the tip of which provides electrical continuity with the engine body via the crankshaft.

At first, I threaded the hole in the Tufnol disc, but found that the thread stripped easily when tightening the screw sufficiently to lock it securely to the crank, so added a captive nut, as seen in the attached photo, which allows the screw to be tightened much more securely. By simply slacking off the screw, the disc can be rotated as necessary to adjust the timing.

I have also attached a photo showing the underside of the gas/air mixer valve where the air holes can be seen. Gas enters via the side pipe and through the valve seat, as with the air holes.

Just have to sort out lubrication for the big end, then should be ready for a trial run, bearing in mind your warning, Graham, to ensure that the engine is bolted down securely. I have tested the hit and miss mechanism by spinning the engine over with an electric drill and it appears to be working well. Nonetheless, the kill switch will be close at hand!!
Ray

Offline propforward

  • Full Member
  • ****
  • Posts: 1221
  • MN, USA
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #79 on: April 02, 2021, 01:29:42 PM »
Very nice. Neat solution with the captive nut. I was thinking about a threaded insert but tufnol being what it is, the captive nut seems a better approach.

It's been a long time since I saw something made out of tufnol - an old toolmaker where I started out my engineering career used to make all kinds of things out of it.
Stuart

Offline RayW

  • Full Member
  • ****
  • Posts: 623
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #80 on: April 07, 2021, 04:41:29 PM »
RLE 504 lives!!!

Started after a just a few spins of the flywheel, and hitting and missing nice and evenly. Inlet valve is occasionally sticking open but this will hopefully rectify itself the more the engine runs. Starts easily just by spinning the flywheels by hand. My gas/air mixer is obviously working well and is very responsive to the least variation in gas pressure.

Just need to make a nice base for it now and sort out a more permanent ignition system. Ran it with a very old trembler coil and battery today, with odd bits of wire just loosely connected, so somewhat amazed that it ran so well.

This is a link to the Youtube video


Ray

Offline Roger B

  • Global Moderator
  • Full Member
  • *****
  • Posts: 5140
  • Switzerland
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #81 on: April 07, 2021, 04:59:15 PM »
Splendid  :praise2:  :praise2: 1 hit to 4 misses to my non musical ear??  :wine1:
Best regards

Roger

Offline Don1966

  • Full Member
  • *****
  • Posts: 6532
  • Morgan City, LA (Along the Gulf Coast)
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #82 on: April 07, 2021, 05:18:42 PM »
Nice to see it erunning Ray .... :Love:



 :cheers:
Don

Offline tangler

  • Full Member
  • ****
  • Posts: 833
  • Christchurch, UK
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #83 on: April 07, 2021, 05:40:08 PM »
  :ThumbsUp:

Online Jasonb

  • Full Member
  • *****
  • Posts: 8152
  • Surrey, UK
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #84 on: April 07, 2021, 06:14:26 PM »
Running well  :pinkelephant:

Offline Chipmaster

  • Full Member
  • ****
  • Posts: 864
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #85 on: April 07, 2021, 07:11:38 PM »
Thatís a steady runner  :ThumbsUp:

Andy

Offline propforward

  • Full Member
  • ****
  • Posts: 1221
  • MN, USA
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #86 on: April 07, 2021, 07:16:03 PM »
That has to be very satisfying to see such a wonderful engine run so well.  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Stuart

Online Alyn Foundry

  • Full Member
  • ****
  • Posts: 1328
  • North Wales, Great Britain.
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #87 on: April 07, 2021, 08:23:21 PM »
No longer a set of neglected castings eh Ray?

She's running beautifully, very well done.   :cheers:

Online Kim

  • Global Moderator
  • Full Member
  • *****
  • Posts: 5091
  • Portland, Oregon, USA
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #88 on: April 07, 2021, 11:46:46 PM »
Wow!  That sounds really nice!  Makes me want to do a hit & miss engine now :)

Kim

Online Dave Otto

  • Full Member
  • *****
  • Posts: 4209
  • Boise, Idaho USA
    • Photo Bucket
Re: Rays Latest Engine - AKA Alyn Foundry RLE
« Reply #89 on: April 08, 2021, 01:32:27 AM »
Congrats Ray!
She looks and sounds great!

Dave