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Antique Gas Engine Discussion

Babbitts turning to powder and wont come off


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Old 09-09-2009, 08:35:04 PM
Christopher Underwood Christopher Underwood is offline
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Default Babbitts turning to powder and wont come off

Hi I noticed that grease wasn't coming out of the bearing on my empire on the crankshaft. when I took the back end of th bearing cap off the babbots wee like dust partially. no grease was getting to the bearing. When I tried to take the babbot and bearing cap off they wouldn't budge at all. How can I get the bearing and babbot off and are they reusable if the powdery stuff is taken off and grease can get to the bearing?

Chris
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Old 09-09-2009, 11:15:18 PM
Andrew Mackey Andrew Mackey is offline
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Exclamation Re: Babbitts turning to powder and wont come off

If done right, the babbitts are soldered to the mains. They usually have to be melted out, and re-poured. Is the powder just surface, or they pitted badly? If pitted, replace. If surface, scrape until bare metal exposed, remove high spots (trial & error, with some prussian bluing), Drill out grease opennings, and grease and shim as nescessary. Sounds like either you got water in the soap based axle grease, or mixed soap based grease and parafin based (oil)greases, and it turned caustic, and ate your bearings (BOO-HISS) make sure not to mix your greases!

Clean out all bearings and grease cups, clean out ALL grease thoroughly. After setting the bearings, hand grease shafts and fill grease cups, and turn down caps as crank is rotated. Make sure grease comes out both sides of bearing. Note type and brand of grease AND DON'T CHANGE IT!!!

Andrew
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