Author Topic: A Wallaby of my own.  (Read 252109 times)

Offline Admiral_dk

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Re: A Wallaby of my own.
« Reply #960 on: January 05, 2019, 09:21:16 PM »
Nice work Dave  :ThumbsUp:

I'm guessing that the holder in the lathe in the first picture isn't aluminium or it might gall - steel ?

I have planed on using a similar approach when I get this far and I didn't think about just screwing the holder and the "bolt" (that holds the wristpin) together like this - in my head it had to be a "bolt" through the holder and nut on the back ...  :-[
How easy is it to turn back out again and is the coarse looking thread an advantage here ?

Best wishes

Per

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Re: A Wallaby of my own.
« Reply #961 on: January 05, 2019, 10:19:16 PM »
Getting on and off is very easy and it uses the wrist pin hole which is there already.  Its a good way to go as you can machine it all in one setup.
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Offline b.lindsey

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Re: A Wallaby of my own.
« Reply #962 on: January 06, 2019, 12:12:49 AM »
Amazing how much progress one can make without a bum leg Dave. It's looking great too!!

Bill

Offline Dave Otto

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Re: A Wallaby of my own.
« Reply #963 on: January 06, 2019, 01:05:07 AM »
Nice progress Dave!

Dave

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Re: A Wallaby of my own.
« Reply #964 on: January 06, 2019, 01:10:39 AM »
Thanks for looking in guys.   Per, yes the fixture is steel, and the bolt is 3/8-16 so it has a pitch of 0.0625" or 1.57mm.    It sets up fine and comes right off by hand when needed no wrench required.     
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Re: A Wallaby of my own.
« Reply #965 on: January 06, 2019, 02:44:36 AM »
OK Clearanced the block to clear the con rod...I also clearanced the block to allow the piston full travel in the BDC position.   There was some core shift but it only added material, so it was just a matter of setting it up and clearing it out.    Now I'm making up a base plate fixture for the dip stick and breather...I'll finish that in the morning...Time to get some rest



Dave
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Offline Art K

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Re: A Wallaby of my own.
« Reply #966 on: January 06, 2019, 03:17:22 AM »
Dave,
Good to see your progress, Id have thought they would have designed the clearance in. Good catch checking in advance. Though I don't have a 3D printer to check with a fabricated rod.
Art
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Re: A Wallaby of my own.
« Reply #967 on: January 06, 2019, 03:22:46 AM »
The print is right Per, the casting is just a bit thick in places...no worries

Dave
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Re: A Wallaby of my own.
« Reply #968 on: January 06, 2019, 10:50:31 PM »
Made a holding fixture and got some of the various small features on the block sorted out today including the dipstick/breather port and the coolant water entrance flange.   Still to do is the rear cam bearing mounting studs which will also mount a camshaft driven water pump. and then the rear crank seal plate monting studs.    But not tonight.  Gonna give the leg a rest.
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Offline b.lindsey

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Re: A Wallaby of my own.
« Reply #969 on: January 06, 2019, 11:14:12 PM »
Great few days in the shop Dave. Wonderful to see the progress you are making.

Bill

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Re: A Wallaby of my own.
« Reply #970 on: January 09, 2019, 12:20:13 AM »
Catching the bug not sure which one but feel like crap tonight so a little light lathe work on the engine. Dip stick and breather cap,

Hey Stevehuck!   Got a good threading insert kit recommendation?   I'm getting far too tired of grinding these damn single point threading tools!

Dave
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Offline stevehuckss396

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Re: A Wallaby of my own.
« Reply #971 on: January 09, 2019, 01:07:41 AM »

Hey Stevehuck!   Got a good threading insert kit recommendation?   I'm getting far too tired of grinding these damn single point threading tools!

Dave

Nikcole has an insert that will fit in that fancy holder you just made. 55 and 60 degree available.   GIE-7-GW-60 R
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Re: A Wallaby of my own.
« Reply #972 on: January 09, 2019, 01:11:09 AM »

Hey Stevehuck!   Got a good threading insert kit recommendation?   I'm getting far too tired of grinding these damn single point threading tools!

Dave

Nikcole has an insert that will fit in that fancy holder you just made. 55 and 60 degree available.   GIE-7-GW-60 R

I was hoping you would say that!    On order tomorrow!

Thanks!

Dave
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Offline b.lindsey

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Re: A Wallaby of my own.
« Reply #973 on: January 09, 2019, 01:22:07 AM »
Feel better Dave. Don't make it worse by overdoing.

Bill

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Re: A Wallaby of my own.
« Reply #974 on: January 09, 2019, 01:50:25 AM »
Feel better Dave. Don't make it worse by overdoing.

Bill

Thanks Bill   Nyquil and night night!
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

 

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