Author Topic: The Alyn Foundry IF Allman engine.  (Read 24095 times)

Offline crueby

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Re: The Alyn Foundry IF Allman engine.
« Reply #75 on: December 09, 2018, 05:57:22 PM »
Nice, thanks! Gotta add that one to the files....
 :popcorn: :popcorn: :popcorn:

Offline Alyn Foundry

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Re: The Alyn Foundry IF Allman engine.
« Reply #76 on: December 09, 2018, 06:00:31 PM »
Hi Jason.

The progress is picking up a pace now, well done.

I copied the drawing for the conrod and made it directly. Many manufacturers of the day used Steel for the most part due to costs, just small amounts of Gunmetal for shells.

Perhaps you could draw both options? I must admit your rendition looks much prettier!

Cheers Graham.

Online Jo

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Re: The Alyn Foundry IF Allman engine.
« Reply #77 on: December 09, 2018, 07:52:17 PM »
I copied the drawing for the conrod and made it directly. Many manufacturers of the day used Steel for the most part due to costs, just small amounts of Gunmetal for shells.

Perhaps you could draw both options? I must admit your rendition looks much prettier!

 :thinking: Yes I think there maybe a number of parts (like the gears  ;) ) that are open to interpretation. It will be interesting to see JB's drawings. Maybe he is planning them to be an Xmas present for us all along with the vid of his engine running  ::)

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: The Alyn Foundry IF Allman engine.
« Reply #78 on: December 09, 2018, 08:03:00 PM »
Xmas 2019 maybe :LittleDevil:

Don't think I will have it complete for Christmas as I may be tempted to do a bit on "Project F" which only Graham knows about :-X :naughty:

Online Jo

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Re: The Alyn Foundry IF Allman engine.
« Reply #79 on: December 09, 2018, 08:30:21 PM »
 :facepalm: :ShakeHead: Pull your finger out...  Andy's run out of models to build :stickpoke:

And you showing some progress might mean that I am allowed to fondle my set of IF Allman castings again  :naughty:

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: The Alyn Foundry IF Allman engine.
« Reply #80 on: December 09, 2018, 08:48:53 PM »
Looks like I won't need to send you a set of drawings then.

I thought his Robinson needed a lick of paint and I know he would like to do a "Project F" too :stir:

Online Jo

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Re: The Alyn Foundry IF Allman engine.
« Reply #81 on: December 09, 2018, 08:54:49 PM »
Looks painted to me  ::)

<a href="https://www.youtube.com/watch?v=ajBDy7FamYY" target="_blank">http://www.youtube.com/watch?v=ajBDy7FamYY</a>

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: The Alyn Foundry IF Allman engine.
« Reply #82 on: December 10, 2018, 07:23:28 AM »
So it is , must be that Mojave Red paint that makes it look like it is still in primer ;)

Offline Chipmaster

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Re: The Alyn Foundry IF Allman engine.
« Reply #83 on: December 10, 2018, 08:53:14 AM »
Ah yes Jason it does look like primer. I sprayed the base with Thermacure Mojave Red left over from my Chuk flame licker ( £17 per 200ml aerosol inc delivery   :o). I can wipe oil off the Thermacure paint and it looks clean. When I tried black VHT exhaust paint the matt finish looked quite messy after wiping off any oil. .

Andy

Online Jo

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Re: The Alyn Foundry IF Allman engine.
« Reply #84 on: December 10, 2018, 07:18:03 PM »
I thought I was going to be allowed to fondle the Allman Castings this evening. But :ShakeHead: Surus had spotted an opportunity and the closest I got was being handed some to put in the log burner.  He is now keeping an eye on them  :thinking:

Jo
Enjoyment is more important than achievement.

Offline 10KPete

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Re: The Alyn Foundry IF Allman engine.
« Reply #85 on: December 10, 2018, 07:24:35 PM »
I like Surus....   :ThumbsUp:

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Online Jasonb

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Re: The Alyn Foundry IF Allman engine.
« Reply #86 on: December 10, 2018, 07:41:52 PM »
Tell him to get stoking you are going to need it hotter than that to try and rescue any of those castings, about 775deg C is needed and a good long soak at that.

Also buy him some angle grinder discs as I had to resort to that to notch the clearances on the pistion ring rim, so hard it snapped a brand new 1/4" carbide milling cutter :'(

The Phosphor oxide in the bronze is probably harder than the iron and you can't cook that out.
« Last Edit: December 10, 2018, 07:55:41 PM by Jasonb »

Online Jo

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Re: The Alyn Foundry IF Allman engine.
« Reply #87 on: December 10, 2018, 07:48:33 PM »
You are the only person who got any of the Bronze castings  ::)

I assume you are using 38mm diameter bore on the cylinder. You could have machined rings out of 40mm diameter CI  ;)

Jo
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Online Jasonb

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Re: The Alyn Foundry IF Allman engine.
« Reply #88 on: December 10, 2018, 07:54:40 PM »
You are the only person who got any of the Bronze castings  ::)

I assume you are using 38mm diameter bore on the cylinder. You could have machined rings out of 40mm diameter CI  ;)

Jo

You and Andy got the better deal then.

I did cut my rings from 40mm bar, (well 2 of the three)that was a typo and should have read RIM, we did mention it early on, they are the notches so that the piston does not cover the inlet and secondary exxhuast at TDC

Online Jo

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Re: The Alyn Foundry IF Allman engine.
« Reply #89 on: December 10, 2018, 07:57:08 PM »
The piston is one of those castings that are currently glowing red hot in the fire  ;)

Jo
Enjoyment is more important than achievement.

 

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