Line boring early block
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Topic author - Posts: 463
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- First Name: Erik
- Last Name: Barrett
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Re: Line boring early block
That's an early Puppy Erik!'
Hank
Hank
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Re: Line boring early block
Is that Mike's?
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Topic author - Posts: 463
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Re: Line boring early block
Yes it is an early one. Number is just over 5000. I know the owner as as Micheal.
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Re: Line boring early block
Thanks for sharing Eric. Always great to hear from you.
24-28 TA race car, 26 Canadian touring, 25 Roadster pickup, 14 Roadster, and 11AB Maxwell runabout
Keep it simple and keep a good junk pile if you want to invent something
Keep it simple and keep a good junk pile if you want to invent something
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Re: Line boring early block
Interesting picture, Erik. I've never actually seen a line boring operation, so maybe this is a dumb question (won't be my first ........ or last).
I notice that the block is not clamped down to the table. As a matter of fact, it appears to be sitting on a cushion of shop rags. So, what keeps the block aligned to the machine's drive during the boring operation ?
Thank you,
Dick
I notice that the block is not clamped down to the table. As a matter of fact, it appears to be sitting on a cushion of shop rags. So, what keeps the block aligned to the machine's drive during the boring operation ?
Thank you,
Dick
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Re: Line boring early block
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If I remember my lessons from Rumble Seat Garage, the above photographs show only the first stage of a finely tuned two jig boring process.
If I remember my lessons from Rumble Seat Garage, the above photographs show only the first stage of a finely tuned two jig boring process.
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Re: Line boring early block
Erik, if you lay a standard crank in the bearing surfaces, how much wear if there? Or was the block previously babbited?
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Topic author - Posts: 463
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Re: Line boring early block
The block is clamped down through the cylinder bores. The rags are there to protect the deck surface from scratching. The mill drives the bar with a flexible coupling so perfect alignment is not required, but I get it close. This block has been opened up to use babbit on the upper main bearings. Originally it would have run the crank in the iron bores.