[TheForge] Lapping compound

Sun Jun 15 12:21:00 2003

Thanks Mike:

This is one of those head slapping, "why didn't I think of it," ideas.

Frosty
------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.

----- Original Message ----- 
From: "Mike Spencer" <[email protected]>
To: <[email protected]>
Sent: Saturday, June 14, 2003 10:11 PM
Subject: [TheForge] Lapping compound

> 
> There was a discussion awhile back about valve lapping compound.
> Here's another application:
> 
> The big end bearing parts on my A&O air hammer are held together with
> special 7/8" x ca. 10" bolts and nuts.  The nuts came off real hard
> and after cleanup still require a lot of weight on a 2' wrench to turn
> them on.  Gonna be hard and awkward to re-assemble inside the tight
> space of the hammer body.  Running a tap through the nuts didn't help.
> No visible distortions.  Machinist's blue didn't reveal any obvious
> high spots.
> 
> So I smeared the bolts with lapping compound and turned the nuts on
> and off a few times.  Cleaned off the abrasive real carefully. The
> nuts now can be turned on by hand with a little effort.
> 
> - Mike
> 
> -- 
> Michael Spencer                  Nova Scotia, Canada 
>                                  
> [email protected]            
> http://home.tallships.ca/mspencer/
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