Maximum diameter of the main bearing cavities
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Topic author - Posts: 83
- Joined: Sat Jan 12, 2019 12:01 pm
- First Name: Dave
- Last Name: Eddie
- * REQUIRED* Type and Year of Model Ts owned: 1926 Tudor, 1926 Touring, 1931 Plymouth PA, 1952 Hudson Hornet
- Location: Lillooet BC. Canada
Maximum diameter of the main bearing cavities
Wondering how far can you bore out the main bearing saddles, on not effect the process of pouring Babbitt?
The concern is if you expose the bolt holes the molten Babbitt will leak out
The concern is if you expose the bolt holes the molten Babbitt will leak out
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- Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
- * REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- Board Member Since: 1999
Re: Maximum diameter of the main bearing cavities
When the Model A crank is used, you do cut into the top bolt holes just a little. When babbitt is poured, the bolt or locating pins will block most of the hole so only a little babbitt will get in. After the mold is removed, that can be drilled out. If needed, the putty used for blocking and damming when pouring babbitt could be used as needed.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1948 Ford F2 pickup

1925 Cut down pickup
1948 Ford F2 pickup
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- 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: Maximum diameter of the main bearing cavities
What Mark said. For a stroker crank job you have to hog the T block all the way out to the bolt holes. Before pouring I plug the holes up to prevent leaks.
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Topic author - Posts: 83
- Joined: Sat Jan 12, 2019 12:01 pm
- First Name: Dave
- Last Name: Eddie
- * REQUIRED* Type and Year of Model Ts owned: 1926 Tudor, 1926 Touring, 1931 Plymouth PA, 1952 Hudson Hornet
- Location: Lillooet BC. Canada
Re: Maximum diameter of the main bearing cavities
Thanks for the tips
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Re: Maximum diameter of the main bearing cavities
Just the smallest of a hole will run hot babbitt like a river, the best plug I've found is house hold aluminium foil in the oil holes and exhaust sealer around the out side of the molds.
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Topic author - Posts: 83
- Joined: Sat Jan 12, 2019 12:01 pm
- First Name: Dave
- Last Name: Eddie
- * REQUIRED* Type and Year of Model Ts owned: 1926 Tudor, 1926 Touring, 1931 Plymouth PA, 1952 Hudson Hornet
- Location: Lillooet BC. Canada
Re: Maximum diameter of the main bearing cavities
Kerry,
Aluminum foil I will have, exhaust sealer are you referring to header wrap or gasket material?
Dave
Aluminum foil I will have, exhaust sealer are you referring to header wrap or gasket material?
Dave
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- Posts: 1447
- Joined: Mon Jan 07, 2019 2:42 pm
- First Name: Frank
- Last Name: van Ekeren
- * REQUIRED* Type and Year of Model Ts owned: 1916 touring, 1916 pick-up, 1924 coupe, 1926 touring, 1927 touring
- Location: Rosedale Vic Australia
Re: Maximum diameter of the main bearing cavities
Dav
I use a high temp paste made in Newzealand by CRC, it seals hard as soon as I heat the block saddles, caps or rods with a 1" propane torch before poring babbitt. /attachment]
I use a high temp paste made in Newzealand by CRC, it seals hard as soon as I heat the block saddles, caps or rods with a 1" propane torch before poring babbitt. /attachment]
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Topic author - Posts: 83
- Joined: Sat Jan 12, 2019 12:01 pm
- First Name: Dave
- Last Name: Eddie
- * REQUIRED* Type and Year of Model Ts owned: 1926 Tudor, 1926 Touring, 1931 Plymouth PA, 1952 Hudson Hornet
- Location: Lillooet BC. Canada
Re: Maximum diameter of the main bearing cavities
Thanks Kerry,
This will be my first crack at pouring Babbitt, thanks for the tips
This will be my first crack at pouring Babbitt, thanks for the tips
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- Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
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- Location: Portland Or
- Board Member Since: 1999
Re: Maximum diameter of the main bearing cavities
I have been using/doing the same as Kerry, but different brand.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1948 Ford F2 pickup

1925 Cut down pickup
1948 Ford F2 pickup
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Topic author - Posts: 83
- Joined: Sat Jan 12, 2019 12:01 pm
- First Name: Dave
- Last Name: Eddie
- * REQUIRED* Type and Year of Model Ts owned: 1926 Tudor, 1926 Touring, 1931 Plymouth PA, 1952 Hudson Hornet
- Location: Lillooet BC. Canada
Re: Maximum diameter of the main bearing cavities
Mark,
Which brand do you use?
Which brand do you use?
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- Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
- * REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- Board Member Since: 1999
Re: Maximum diameter of the main bearing cavities
Adding new post to bump up.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1948 Ford F2 pickup

1925 Cut down pickup
1948 Ford F2 pickup
-
- Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
- * REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- Board Member Since: 1999
Re: Maximum diameter of the main bearing cavities
Permatex Muffler & Tailpipe Sealer #80335
Not sure if water base or not, the package does not say, it is water cleanup. I found best is to make sure it is fully dried before pouring the babbitt.
Not sure if water base or not, the package does not say, it is water cleanup. I found best is to make sure it is fully dried before pouring the babbitt.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1948 Ford F2 pickup

1925 Cut down pickup
1948 Ford F2 pickup