[NSRCA-discussion] Rust on OS1.60 Crank

[Ron Van Putte]

I would imagine that all crankshafts are heat treated.  No adverse  
effects of my use of Osmose on the crankshafts I've treated.

Ron

On Nov 16, 2009, at 2:30 PM, jeffghughes at comcast.net wrote:

> Some crankshafts are heat treated, so I'd be carefull using any  
> acid based de-rusters. Probably won't hurt anything, but unintended  
> consequences can occur.
>
>
>
> ----- Original Message -----
> From: "Ron Van Putte" <vanputte at cox.net>
> To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
> Sent: Monday, November 16, 2009 1:18:11 PM GMT -05:00 US/Canada  
> Eastern
> Subject: Re: [NSRCA-discussion] Rust on OS1.60 Crank
>
> I remove most of the rust from iron/steel items by using fine steel
> wool and phosphoric acid (Osmose).  It causes a chemical reaction
> with the rust (ferrous oxide) and converts it into an inert form
> (ferrous sulphate).
>
> BTW Osmose works well on the whitish/bluish powder/crystals which
> form on some electrical connections.
>
> Ron VP
>
> On Nov 16, 2009, at 12:01 PM, Pascoe,Tim [Burlington] wrote:
>
> > What’s the best way to clean rust off the crank of an engine, or is
> > it even necessary? I have an OS 1.60 that has very low run time
> > (less than 2 gallons), but had been sitting for a while. I pulled
> > the bearings out as the main looked/felt as if it could use a
> > change. At the same time, I noticed a fair amount of rust on the
> > crank, specifically in front of the con-rod pin opposite the
> > counter-balance. Should this be cleaned off, and if so, what’s the
> > best way to go about it? I’ve switched bearings before and there is
> > always some rust, but this seems to be more than I’d expect.
> >
> >
> >
> > Thanks,
> >
> >
> >
> > Timothy Pascoe
> >
> >
> >
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>
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