[NSRCA-discussion] Rust on OS1.60 Crank

[jeffghughes at comcast.net]

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 
> 
> 
> 
> _______________________________________________ 
> NSRCA-discussion mailing list 
> NSRCA-discussion at lists.nsrca.org 
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 

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