[AT] #3 Power Block

Bob Brooks rbrooks at hvc.rr.com
Wed Mar 24 05:59:30 PST 2004


Dean;

Maybe you can modify standard gaskets to take the straight sleeves and 
pistons. 

Or you could always use the drag racing trick of sealing the cylinders 
with copper o rings.

Bob


Dean VP wrote:

>Bob:
>
>I just learned that my assumption about the narrower sleeves at the top
>isn't there to increase compression but so that standard gaskets can be
>used. Smart these engineers. :-)
>
>Dean A. Van Peursem
>Snohomish, WA 98290
>
>CRS = Having a Photographic Memory but a shortage of unused film.
>
>www.deerelegacy.com
>
>http://members.cox.net/classicweb/email.htm
>
>
>-----Original Message-----
>From: at-bounces at lists.antique-tractor.com
>[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Dean VP
>Sent: Tuesday, March 23, 2004 7:38 PM
>To: 'Antique tractor email discussion group'
>Subject: RE: [AT] #3 Power Block
>
>Bob:
>
>Thanks.  It is my understanding these sleeves are very unique. For example
>the top part is filled in narrower than the diameter of the cylinder to
>increase compression and the piston is tapered on the outside top edge. That
>may be a bit unusual for the typical supplier of sleeves. But I'm sure going
>to follow up on each one of your reference sites. Who knows? Maybe there is
>someone out there making these type sleeves. That might be a real lifesaver.
>Thanks again.
>
>Dean A. Van Peursem
>Snohomish, WA 98290
>
>CRS = Having a Photographic Memory but a shortage of unused film.
>
>www.deerelegacy.com
>
>http://members.cox.net/classicweb/email.htm
>
>
>-----Original Message-----
>From: at-bounces at lists.antique-tractor.com
>[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Bob Brooks
>Sent: Tuesday, March 23, 2004 7:30 PM
>To: Antique tractor email discussion group
>Subject: Re: [AT] #3 Power Block
>
>Dean;
>
>maybe one of these guys could match a sleeve up for you.
>
>http://www.lasleeve.com/
>
>http://www.anandenterprise.com/
>
>http://www.enginepartsworld.com/
>
>http://www.egge.com/
>
>http://www.millsobsoleteengparts.com/
>
>Bob
>
>
>Dean VP wrote:
>
>  
>
>>In one of my weaker moments, on my recent trip, I picked up a 6" #3 Power
>>Block ( for late JD A's or early 60's, including aluminum Pistons and rods.
>>I know less than I should know about Power Blocks. I don't totally yet know
>>the real condition of this block, the sleeves or the pistons as the pistons
>>are stuck in the cylinders. I am gambling I can do something with this
>>    
>>
>thing
>  
>
>>and still come out ok. It may be a foolish experiment but we only live
>>    
>>
>once.
>  
>
>>I asked several people at the GOG about this before I bought it and learned
>>a little about Power Blocks. I'm looking for anyone on the list who has any
>>experience messing with these things who might educate me a bit more. I
>>    
>>
>have
>  
>
>>learned that new sleeves are not available and if new ones are needed they
>>have to be custom made and are very expensive. I also was told that I might
>>be able to bore the current sleeves by 1/8", if necessary, and then use G
>>Pistons which are 6 1/8". But G pistons don't have the tapered top outside
>>edge that a Power Block Piston has. At least not the G pistons I have seen
>>so far. 
>>
>>Anyone out there willing to educate this, maybe foolish, gambler on Power
>>Blocks? BTW, the block itself looks real good. Wish I could say the same
>>about the sleeves!  :-)
>>
>>This could be a fun kind of experience or maybe a really expensive lesson!
>>:-) I think I purchased this at a low enough cost so I can afford to do
>>    
>>
>some
>  
>
>>fixing. But I sure don't know what is necessary yet. 
>>
>>I'm lost in the wilderness of Power Blocks!  
>>
>>Dean A. Van Peursem
>>Snohomish, WA 98290
>>
>>CRS = Having a Photographic Memory but a shortage of unused film.
>>
>>www.deerelegacy.com
>>
>>http://members.cox.net/classicweb/email.htm
>>
>>
>>
>>
>>
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>>
>> 
>>
>>    
>>
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