Author Topic: GDB Inline 4 Cylinder OHV I.C.  (Read 9480 times)

Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #60 on: December 17, 2018, 10:34:42 PM »
Thanks for following along gentlemen.

Dave & Dave, yes, I love that lathe.  It is the crown jewel of my machines.

Bill, the setups aren't really that amazing.  I use to read a lot of old time machinist type stuff.  Those guys had amazing setups.

-Bob
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Offline Art K

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #61 on: December 18, 2018, 03:09:13 AM »
Bob,
Sorry I missed the memo explaining what lathe you have & why everyone is raving about it. :thinking:
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #62 on: December 18, 2018, 03:21:41 AM »
If the link works Art, this is when I bought it.  It is a Rivett 608 on the original oak cabinet.

http://www.modelenginemaker.com/index.php/topic,4646.0.html?PHPSESSID=s8nnihdaloa8lt7c8ujqj0cvd1

-Bob
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Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #63 on: April 15, 2019, 12:05:25 AM »
Wow, four months since I lasted worked on this.


Block continued-

A .250 diameter ball endmill was used to rough out the location for the crankshaft.  (The long range plan is to mill the pockets that that will form the webs of block, then install the caps.  The caps and block will then be drilled and bored to the finished diameter.)

The oil holes were drilled and reamed to .0625.  I chose to ream the holes because I can insert dowel pins in them for locational purposes for future setups.

I am currently in the process of drilling and tapping the 2-56 holes for the caps.

-Bob
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Offline Art K

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #64 on: April 15, 2019, 03:16:56 AM »
Bob,
Glad to see you are back at it, more than I can say for myself. Been busy after all.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #65 on: April 22, 2019, 02:24:38 AM »

Thanks Art.  I am glad also.  It is so nice to be making some progress on this engine.


Block continued-

The 2-56 holes for the caps were finished up and the milling of the pockets began.  A .500 drill was used to rapidly remove some of the material.  Next a .500 endmill was used to rough out the pockets.  I currently have one of the pockets roughed out and have begun the second pocket.

-Bob
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My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos

Offline b.lindsey

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #66 on: April 22, 2019, 09:55:35 PM »
Good to see you back on this one Bob.

Bill

Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #67 on: April 23, 2019, 09:23:19 PM »
Thanks a Bill, as always, thank you for your support.  Hopefully, updates will be more frequent now that plowi season is over.  I get busy after Memorial Day because of the pools opening; but, it is nothing like plow season.

-Bob
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Offline Don1966

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #68 on: April 24, 2019, 02:18:09 AM »
Looks like your off to a good start Bob I will Be following along!..... :ThumbsUp:


 :popcorn:
Don

Offline b.lindsey

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #69 on: April 24, 2019, 01:55:16 PM »
Bob, not to divert your thread, but you had mentioned some problems with the Tiny IC engine. Have you done any more with that and has it improved. I have found a start up method that works well on mine after it has been sitting (even overight) and still allows for hand starting. If interested let me know and I will send it via PM.

BIll

Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #70 on: April 25, 2019, 10:59:31 PM »
Thanks Don.

Bill- re Tiny, it'll just about to start, then foul the plug.  My plan is to make a new plug for it.  I would still be interested in your start method.


-Bob
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Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #71 on: April 30, 2019, 09:58:53 PM »
Block continued-

Not as much progress as I had hoped for this past weekend.  I roughed out two more of the pockets.  I do have a good reason for the small amount of progress.  I had an opportunity to buy a mold maker's tools at a great price. 

I've been going through them and cleaning them.  I am also determining what I am going to keep and what I will have to sell.  I can't justify holding onto to tooling that is bigger than what my machines can hold.  I also don't need doubles and triples of measuring tools.

I'm very happy.  I did get some items that have been on my wishlist for sometime.  (Large roll cabinet (9 drawer Craftsman), gauge block set, 0-1/8 Albreicht drill chuck, angle block set, etc.)

-Bob
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My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos

Offline b.lindsey

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #72 on: May 01, 2019, 01:03:54 AM »
Looks like a good score Bob. Have fun going through it all :)

Bill

Offline Roger B

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #73 on: May 01, 2019, 11:20:18 AM »
Glad to see you back on this one  :ThumbsUp:  :ThumbsUp: That looks to be a good catch  :)
Best regards

Roger

Offline 90LX_Notch

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Re: GDB Inline 4 Cylinder OHV I.C.
« Reply #74 on: May 02, 2019, 01:27:59 AM »
Thanks Bill.  Going through it is more of a pain than anything.  I already pulled out the "wow" stuff.  Now it is the, do I really need this stuff.

Thanks for checking in Roger.  It is a good catch for me.  It brings me that much closer to my ultimate shop. 

-Bob
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos