Author Topic: Flyboy Jim's Parsell & Weed Engine  (Read 50809 times)

Online Kim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #255 on: November 19, 2017, 06:15:23 AM »
Hi Jim,
Just following along and enjoying your build!

It may have been a while since you posted, but now that you've gotten back to it, you're really making good progress!
Kim

Offline Flyboy Jim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #256 on: November 20, 2017, 04:46:17 AM »
Thanks Pete and Kim.

Located the hole for the rocker arm, spot drilled, drilled and threaded.





Then milled to the proper dimension on both sides.





Tilted the table to the proper angle and milled the side of the rocker arm arm.





So far so good.



Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline b.lindsey

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #257 on: November 20, 2017, 11:47:09 AM »
Well done Jim!!  I wish they had left a little more casting stock on that rocker arm though, there isn't a lot of material left out there at the tip of it. Was the same on mine.

Bill

Offline Flyboy Jim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #258 on: November 20, 2017, 02:49:06 PM »
Well done Jim!!  I wish they had left a little more casting stock on that rocker arm though, there isn't a lot of material left out there at the tip of it. Was the same on mine.

Bill

Thanks Bill. Yes I was concerned about that myself.

Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline Flyboy Jim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #259 on: November 21, 2017, 03:35:57 AM »
Continuing on..... I made my "Bill Lindsey" designed holder for the head, in order to work around the small jaws of the Sherline.


This allowed me to turn the rest of the head down to the proper diameter.



Then turned the shoulder for the part of the head that goes into the cylinder.



Then turned it (gently) to the proper width.





Moment of truth. I know I'm "preaching to the choir" here, but I've got to say that it felt so good when I slipped that head into place and I could screw all the bolts in by hand!   :whoohoo:



Next up is the rocker arm.

Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline crueby

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #260 on: November 21, 2017, 03:43:41 AM »
Very nice!!!

Offline 10KPete

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #261 on: November 21, 2017, 03:59:03 AM »
The happy dance really gets started when parts fit like they should but better!!
Oh yeah!

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

Online Kim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #262 on: November 21, 2017, 05:01:37 AM »
Well done there, Jim!  That is looking mighty nice!
Kim

Offline littlelocos

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #263 on: November 24, 2017, 02:10:07 AM »
Jim,
Stopped by tonight and saw that you're back in the shop.  Congratulations! on a super-nice looking engine so far.  Keep up the good work!
I'll check on the rocker stanchion.  I know I added some material on top of the valve guides.  I may have added some on the stanchion as well.  If not, I'll do that next time I've got the patterns in the shop.  (We're waiting on a fresh batch due in a couple of weeks.)
Enjoy!
Todd.


Offline Flyboy Jim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #264 on: November 24, 2017, 04:25:28 PM »
Jim,
Stopped by tonight and saw that you're back in the shop.  Congratulations! on a super-nice looking engine so far.  Keep up the good work!
I'll check on the rocker stanchion.  I know I added some material on top of the valve guides.  I may have added some on the stanchion as well.  If not, I'll do that next time I've got the patterns in the shop.  (We're waiting on a fresh batch due in a couple of weeks.)
Enjoy!
Todd.

Thanks guys.

Todd, A little more material the rocker stantion would be nice , but I think it worked out fine.

Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline Flyboy Jim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #265 on: November 27, 2017, 03:14:03 AM »
Got started on the rocker arm.

Mounted a piece of 1/4" square brass in the milling vice and started drilling and tapping holes.







Started milling material away.



Here's a picture (after usage) of a jig I made for further milling on the rocker arm.



Pretended I had a CNC machine (or in my case "Count Number of Cranks") and milled the rocker arm to shape.





Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline crueby

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #266 on: November 27, 2017, 03:30:35 AM »
That's my kind of CNC! Nice setup for a complex part.


 :popcorn:

Online Kim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #267 on: November 27, 2017, 05:08:39 AM »
Nice progress on the rocker arm's, Jim.
Kim

Offline b.lindsey

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #268 on: November 27, 2017, 11:29:05 AM »
Very nice Jim. Great pictures as well.

Bill

Offline Flyboy Jim

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Re: Flyboy Jim's Parsell & Weed Engine
« Reply #269 on: November 28, 2017, 03:22:34 AM »
Thanks guys. This rocker arm has been a really challenging piece!

Continuing on. Made the rocker shaft.



Then the tappet.





Spent some time filing and sanding. Done for now. Still need to harden the tappet.



Ordered my lathe riser block set today in anticipation of working on the flywheels.  :atcomputer: While I was at it..... the longer mill column sort of jumped into the shopping cart.  :shrug: Christmas came early this year!  :cartwheel:

Jim




Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

 

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