[AJD] Overhaul kits? Dumb question???

[greg at theoldtractorcompany.com]

As a good general rule, most all pistons today are aluminum.
Also, do not forget that all or nearly all of the aluminum pistons will be high compression design pistons so power increases realized more than offset the old cast iron "luggability" in my opinion.
Greg

Greg Stephen
The Old Tractor Company
Stephen Equipment Company
Box 709
7460 E Hiway 86
Franktown, CO 80116
303-663-5246
303-468-0377 FAX<<--A GREAT WAY TO REACH ME!


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On Tue, 30 Nov 2004 11:38:17 -0800, "Dean VP" <deanvp at att.net> wrote:

> Rachel:
> 
> In some cases the cylinders had to be bored out more than 0.045" due to
> damage or excessive wear. This slight increase in piston diameter really
> doesn't offer much HP increase. Increasing the compression and/or stroke
> does. 
> 
> But my question really is: Are all JD's pistons sold today up to the 20
> series, cast iron pistons. And are all aftermarket pistons that are sold
> today, aluminum no matter for what tractor? 
> 
> Dean A. Van Peursem
> Snohomish, WA 98290
> 
> I'm a walking storeroom of facts..... I've just lost the key to the
> storeroom door 
> 
> 
> www.deerelegacy.com
> 
> http://members.cox.net/classicweb/email.htm
> 
> 
> 
> -----Original Message-----
> From: antique-johndeere-bounces at lists.antique-tractor.com
> [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
> RWRAINEY5 at aol.com
> Sent: Tuesday, November 30, 2004 10:22 AM
> To: antique-johndeere at lists.antique-tractor.com
> Subject: Re: [AJD] Overhaul kits? Dumb question???
> 
> Dean;
> 
> I'm pretty sure that Deere only sold the .45 over cast pistons for models 
> prior to the numbered series.   Too, they did not recommend bores larger
> than 
> that for any of their two cylinders, so far as I know.  My dad has or had a
> book 
> put out by Deere about this very thing.    Speaking for myself, I can't for 
> the life of me figure out why any sane person would put .125s or .250s in a
> John 
> Deere B!   These tractors simply weren't designed for that much power, and
> it 
> seems almost criminal to "overhaul" them that way.
> 
> Just my opinion,
> Rachel
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