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Author Topic: Jim Walker .065  (Read 715 times)

Offline Dane Martin

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Jim Walker .065
« on: July 07, 2020, 05:41:43 PM »
I'm not 100 percent certain on the displacement. I've seen a few on Ebay, so I know they're not super rare. But, what's the history?  Did they come on some of the ready to fly planes? Is there a way to date this engine?

I got a sweet deal on a small 1/2a lot. I got a couple royal spitfires, this Jim Walker engine and some others.

Offline Dane Martin

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Re: Jim Walker .065
« Reply #1 on: July 07, 2020, 05:42:19 PM »
The royal spitfires

Offline dennis lipsett

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Re: Jim Walker .065
« Reply #2 on: July 07, 2020, 06:32:20 PM »
My memory is a little short but I believe that it was made by Mel Anderson and  It was the largest of the small compact engines of the day that he made. He also made a special version for Jim Walker, it had a bulb controller that when you squeezed it it closed a clapper on the venturi and gave you a crude form of throttle control. We had fun doing touch and goes with one of them. It might have been 1955 or there about. As I said my memory is getting shaky.

Offline James Holford

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Re: Jim Walker .065
« Reply #3 on: July 07, 2020, 08:39:48 PM »
Yea I know the deal you got great score!

Sent from my SM-G965U using Tapatalk

Jamie Holford
Baton Rouge Bi-Liners
Lafayette, La
AMA #1126767

Offline Dan McEntee

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Re: Jim Walker .065
« Reply #4 on: July 08, 2020, 07:13:51 AM »
     Notice the resemblance of the Walker engine to the Royal Spitfire! I think I have at least one of these myself.
   Type at you later.
     Dan McEntee
AMA 28784
EAA  1038824
AMA 480405 (American Motorcyclist Association)

Offline Dane Martin

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Re: Jim Walker .065
« Reply #5 on: July 08, 2020, 08:26:18 AM »
Very cool Dennis.  I think you're at least close, if not on the money.

So, probably more work than it's worth.... but this one has a broken lug, and missing backplate. What I've done in the past, was to TIG weld it back up and mill it out.

It's a threaded back plate. I can cut as fine as 120tpi. So that should be an "easy" task.

Offline dennis lipsett

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Re: Jim Walker .065
« Reply #6 on: July 08, 2020, 11:47:32 AM »
Very cool Dennis.  I think you're at least close, if not on the money.

So, probably more work than it's worth.... but this one has a broken lug, and missing backplate. What I've done in the past, was to TIG weld it back up and mill it out.

It's a threaded back plate. I can cut as fine as 120tpi. So that should be an "easy" task.


Dane,
Hope that your restoration goes well. But remember that when you run it don't be surprised when it is only about average power. He was making engines to appeal to a specific group, mainly energetic young people who wanted a fun model to fly. It really was a different generation.

Dennis

Offline Dane Martin

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Re: Jim Walker .065
« Reply #7 on: July 08, 2020, 12:47:11 PM »

Dane,
Hope that your restoration goes well. But remember that when you run it don't be surprised when it is only about average power. He was making engines to appeal to a specific group, mainly energetic young people who wanted a fun model to fly. It really was a different generation.

Dennis

Thank you Dennis. With that, it'll probably just end up on a light free flight sport model. Really more of something to be able to hear it run. Sit back and admire it. They don't seem rare, so I could probably just Ebay one. But I think I like making parts and running these things more than anything right now

Offline Chris Sarnowski

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Re: Jim Walker .065
« Reply #8 on: July 08, 2020, 04:24:17 PM »
Check the piston-conrod ball joint play before you run it. I have one that is pretty sloppy. Does not look like it can be reset easily like a Cox piston ball joint.

-Chris

Offline Controlliner

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Re: Jim Walker .065
« Reply #9 on: December 09, 2021, 07:49:14 PM »
.065. the piston is three piece piston snap ring and ball cup (socket)

Offline Fredvon4

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Re: Jim Walker .065
« Reply #10 on: December 10, 2021, 05:01:03 AM »
Would this have been used on one of these?

https://www.rcgroups.com/forums/showthread.php?4027561-Jim-walker-firebaby-arf

currently for sale.....not mine
"A good scare teaches more than good advice"

Fred von Gortler IV


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