Line boring early block

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules

Topic author
Erik Barrett
Posts: 463
Joined: Mon Jan 07, 2019 12:32 am
First Name: Erik
Last Name: Barrett
* REQUIRED* Type and Year of Model Ts owned: 1913 speedster 1924 touring 1925 dump truck
Location: Auburn, Ca.

Line boring early block

Post by Erik Barrett » Sat Aug 03, 2019 8:20 pm

One of today’s projects. Main bearings on a 1909 block.
Attachments
C5250751-B0B5-40B4-B098-A3038D9144FD.jpeg

User avatar

Henry K. Lee
Posts: 5339
Joined: Sun Jan 06, 2019 11:09 am
First Name: Henry
Last Name: Lee
* REQUIRED* Type and Year of Model Ts owned: Many
Location: South Pittsburg, TN
MTFCA Number: 479
MTFCA Life Member: YES

Re: Line boring early block

Post by Henry K. Lee » Sat Aug 03, 2019 8:34 pm

That's an early Puppy Erik!'

Hank


modeltbarn
Posts: 338
Joined: Sun Jan 06, 2019 6:59 pm
First Name: Gary
Last Name: London
* REQUIRED* Type and Year of Model Ts owned: 1911 Touring
Location: Camarillo
MTFCA Number: 16592

Re: Line boring early block

Post by modeltbarn » Sat Aug 03, 2019 11:26 pm

Is that Mike's?


Topic author
Erik Barrett
Posts: 463
Joined: Mon Jan 07, 2019 12:32 am
First Name: Erik
Last Name: Barrett
* REQUIRED* Type and Year of Model Ts owned: 1913 speedster 1924 touring 1925 dump truck
Location: Auburn, Ca.

Re: Line boring early block

Post by Erik Barrett » Sun Aug 04, 2019 3:10 am

Yes it is an early one. Number is just over 5000. I know the owner as as Micheal.

User avatar

John Warren
Posts: 1069
Joined: Sun Jan 06, 2019 12:18 pm
First Name: John
Last Name: Warren
* REQUIRED* Type and Year of Model Ts owned: 14 Roadster, 25 Pickup , 26 Canadian Touring , and a 24-28 TA race car
Location: Henderson, Nevada

Re: Line boring early block

Post by John Warren » Sun Aug 04, 2019 8:25 am

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 :P


otrcman
Posts: 364
Joined: Sun Jan 06, 2019 2:25 pm
First Name: Dick
Last Name: Fischer
* REQUIRED* Type and Year of Model Ts owned: 1912 Touring
Location: Arroyo Grande, CA

Re: Line boring early block

Post by otrcman » Sun Aug 04, 2019 10:01 am

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


NorthSouth
Posts: 512
Joined: Tue Apr 16, 2019 9:18 pm
First Name: Steve
Last Name: California
* REQUIRED* Type and Year of Model Ts owned: 1911 Touring, 1912 Warren Speedster
Location: West Coast
MTFCA Number: 50392

Re: Line boring early block

Post by NorthSouth » Tue Aug 06, 2019 9:54 pm

-
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.


KimDobbins
Posts: 1245
Joined: Sun Jan 06, 2019 12:16 pm
First Name: Kim
Last Name: Dobbins
* REQUIRED* Type and Year of Model Ts owned: 1909 touring, 1910 touring, 1913 touring, 1916 couplet, 1924 truck.
Location: Southern California
MTFCA Number: 8243

Re: Line boring early block

Post by KimDobbins » Tue Aug 06, 2019 10:44 pm

Erik, if you lay a standard crank in the bearing surfaces, how much wear if there? Or was the block previously babbited?


Topic author
Erik Barrett
Posts: 463
Joined: Mon Jan 07, 2019 12:32 am
First Name: Erik
Last Name: Barrett
* REQUIRED* Type and Year of Model Ts owned: 1913 speedster 1924 touring 1925 dump truck
Location: Auburn, Ca.

Re: Line boring early block

Post by Erik Barrett » Wed Aug 07, 2019 11:30 am

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.

Post Reply Previous topicNext topic