4th main babbitt pouring question
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Topic author - Posts: 5370
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- First Name: Mark
- Last Name: Gregush
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4th main babbitt pouring question
After melting the old babbitt out, when pouring the 4th main, does it need to be tinned before pouring? Seems to work fine without, but don't know if it needs it.
Thanks
Thanks
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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Re: 4th main babbitt pouring question
I have melted out more that where never tinned than those that where!
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Topic author - Posts: 5370
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Re: 4th main babbitt pouring question
That is what I am hoping to hear. 

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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Re: 4th main babbitt pouring question
Try it, but, I had some done that were not tinned & they should have been. Poor adhesion.
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Re: 4th main babbitt pouring question
Good practice is to 100% tin the ball cap prior to pouring. Why take a chance of having a failure??
Its not that much more effort when things are hot.
Its not that much more effort when things are hot.
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Topic author - Posts: 5370
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Re: 4th main babbitt pouring question
Ok I will try both ways. The one I did looks ok, have a couple of more I need to do.
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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Re: 4th main babbitt pouring question
Looks OK is not the issue, working OK is, they are tinned for a correct bond, if not then all you have is a babbitt sleeve which will fail.
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Re: 4th main babbitt pouring question
I believe it ought to be tinned. That will lock the babbit in place and give the best heat transfer. As things wear and clearance devolps, the tinned bearing would be less likley to loosen, spin, or crack.
It would be more important for a TT or a speedster, or any car that is to be driven enthusiastically.
It would be more important for a TT or a speedster, or any car that is to be driven enthusiastically.
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Re: 4th main babbitt pouring question
Mark:
i have done a bunch of ball caps ... i have never seen a ball cap that was not tinned ... many are not a full tinning , BUT , all show some attempt at a tinning ...also , i mailed your endcap this afternoon ... always an optimist ...Gene French
i have done a bunch of ball caps ... i have never seen a ball cap that was not tinned ... many are not a full tinning , BUT , all show some attempt at a tinning ...also , i mailed your endcap this afternoon ... always an optimist ...Gene French
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Topic author - Posts: 5370
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Re: 4th main babbitt pouring question
Thank you Gene.
Tinning it is then.
Tinning it is then.
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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Re: 4th main babbitt pouring question
. I like this stuff for tinning. All the plumbing supply have it around here. Don’t forget the flux brushes
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Re: 4th main babbitt pouring question
One more thing, I save old babbitt for tinning, lay a connecting rod on its side and pour the channel with babbitt. This make’s just the right size sticks sticks for rubbing on what you want tinned.
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Re: 4th main babbitt pouring question
"One more thing, I save old babbitt for tinning, lay a connecting rod on its side and pour the channel with babbitt. This make’s just the right size sticks sticks for rubbing on what you want tinned."
If you use a model A rod for that, you get wider and longer strips.
If you use a model A rod for that, you get wider and longer strips.
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Topic author - Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
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Re: 4th main babbitt pouring question
I have used a piece of steel right angle to make the sticks.
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