Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 07-31-2018, 12:15 PM   #1
Smitty
Senior Member
 
Smitty's Avatar
 
Join Date: May 2010
Location: Boston North Shore
Posts: 750
Default Model A Main Bearing-Block and Babbitt Temps

Hello All,

I am sure this has been covered before but what are the recommended Babbitt and Block temperatures for pouring main bearings? I know that the Wilson literature recommends room temp but consensus with most people seems to be a pre-heated block.
Can extra Babbitt in the melting pot be re-heatd and used or is it a 1-shot deal?
As always "the devil is in the details"
Thanx, Steve
Smitty is offline   Reply With Quote
Old 07-31-2018, 02:04 PM   #2
BRENT in 10-uh-C
Senior Member
 
BRENT in 10-uh-C's Avatar
 
Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,486
Default Re: Model A Main Bearing-Block and Babbitt Temps

Steve, the reason you pre-heat is to cut back on the shrinkage as the babbitt cools. Arguably, pre-heating is not that crucial if peining is properly done with the freshly-poured babbitt however I do both.


Yes, you can re-use the 'extra' however I think the size of the melting pot dictates that as crotched or overheated material is never good to re-use.
__________________
.

BRENT in 10-uh-C
.
www.model-a-ford.com
...(...Finally Updated!! )

.
BRENT in 10-uh-C is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 08-01-2018, 07:17 PM   #3
Mark in MT
Senior Member
 
Join Date: May 2010
Location: Western MT
Posts: 218
Default Re: Model A Main Bearing-Block and Babbitt Temps

Another good reason to pre-heat the block is to get rid of any moisture, if hot Babbitt hits any water, it will explode and stick Babbitt to the ceiling. Don't ask me how I know.
__________________
Mark in MT

Always looking for another opportunity to be wrong.
Mark in MT is offline   Reply With Quote
Old 08-01-2018, 09:22 PM   #4
Kohnke Rebabbitting
Senior Member
 
Join Date: May 2010
Location: 60615,330th Ave.,Clare, Iowa, 50524
Posts: 1,457
Default Re: Model A Main Bearing-Block and Babbitt Temps

I seen a Ford movie clip of Ford workmen pouring one block, after another.


1. Two Guys would put a block on the ground, and they were out side, in warm weather.


2. Two Guys would drop the 3 main Jig on.


3. One Guy had a torch like they sell up town, I have one, it is about 3 feet long with a 6 inch pipe on the end, with an I.D. of about 3 inches. It is NOT used for Babbitt!
K.R. Wilson said that Ford did not pre heat their blocks, BUT yes he did ! He just didn't use it as a step ! What was done was the jig was put on the block, and then this Jig was heated on the block, a bearing at a time. With this big torch, there is no way they heated the Jig, with out heating the block, but they didn't use preheat, as a step !


4. When heated, two Guys with two ladles each poured the block.


5. When, solid, two Guys pulled the Jig.


6. Then two Guys moved the block.


The purpose for heating a block, has nothing at all to do with shrinkage.


Herm.

Last edited by Kohnke Rebabbitting; 08-01-2018 at 09:35 PM.
Kohnke Rebabbitting is offline   Reply With Quote
Old 08-02-2018, 12:08 AM   #5
Smitty
Senior Member
 
Smitty's Avatar
 
Join Date: May 2010
Location: Boston North Shore
Posts: 750
Default Re: Model A Main Bearing-Block and Babbitt Temps

750 deg. on babbitt, 350 deg. on the block work? What can be used to stir hot babbitt if not a pine stick?
Thanx, Steve
Smitty is offline   Reply With Quote
Old 08-02-2018, 12:07 PM   #6
Kohnke Rebabbitting
Senior Member
 
Join Date: May 2010
Location: 60615,330th Ave.,Clare, Iowa, 50524
Posts: 1,457
Default Re: Model A Main Bearing-Block and Babbitt Temps

Sponsored Links (Register now to hide all advertisements)
Quote:
Originally Posted by Smitty View Post
750 deg. on babbitt, 350 deg. on the block work? What can be used to stir hot babbitt if not a pine stick?
Thanx, Steve

We have regulated pots. The Tinning pot holds about 3 gallon, of Babbitt, and the pouring pot holds about 5 gallon. The tinning pot is set from 610, to 640. The pouring pot runs at 950.


What most people don't know is, a Pine Stick was used on " LEAD BABBITT ONLY ". Long before the right Temperature for pouring Tin Base Babbitt, a pine stick will explode in to flame.


Herm.
Kohnke Rebabbitting is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 07:51 AM.