[AJD] Late A cylinder block vs Early 60 Cylinder block???

[Dean VP]

Ok, I now have the block out of A Ser # 654037 and the casting number on the
block is A3703A as expected. I don't see any visible cracks. Of course the
pistons are stuck which made it a bit harder to remove and heavier to
handle. The cylinder walls don't look all that bad but I doubt if just a
simple honing will be adequate. Looks like STD pistons currently are in it
which is good as that allows any boring size desired. The rods are Insert
bearing type. Piston pin wear is just slightly noticeable. 

I would like to hear from those of you who have faced up to the boring
decision and then decided to go a certain way.  Obviously there are at least
3 different bores potentially or boring with the intention of sleeving back
to STD.  I curious what parameters you used to make your decisions. And what
measurements you made on the pistons and the acceptable tolerances you used
if you decided to use the original pistons again. 

I plan to carefully press the pistons out the bottom, hone the cylinder
walls to see what I have. Clean up the pistons and then take some
measurements. What limits on dimensional tolerances do you use to make use
vs replace decisions? 

Thanks for the help in advance.

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
greg at theoldtractorcompany.com
Sent: Thursday, February 10, 2005 11:46 AM
To: Antique John Deere mailing list
Subject: RE: [AJD] Late A cylinder block vs Early 60 Cylinder block???

I believe so. I know we have used a 60 block on a late A
I always just try to match casting #'s though to be safe
Greg

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

On Thu Feb 10 12:09 , 'Dean VP' <deanvp at att.net> sent:

>Greg:
>
>If this is an un-cracked block is it both up and down compatible?
>
>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
>[antique-johndeere-bounces at lists.antique-tractor.com','','','')">antique-jo
hndeere-
bounces at lists.antique-tractor.com] On Behalf Of
>greg at theoldtractorcompany.com
>Sent: Wednesday, February 09, 2005 9:43 PM
>To: Antique John Deere mailing list
>Subject: Re: [AJD] Late A cylinder block vs Early 60 Cylinder block???
>
>In my experience, it's a tough block to find uncracked
>Greg
>
>reg Stephen
>The Old Tractor Company
>Stephen Equipment Company
>PO Box 709
>Franktown, CO 80116
>303-663-5246
>303-468-0377 FAX
>
>On Wed Feb  9 20:37 , 'wjohnson' wjohnson at bigriver.net> sent:
>
>>I have used both both ways and if there is a difference I haven't found it
>>Merle
>>
>>-----Original Message-----
>>From: "Dean VP" deanvp at att.net>
>>To: "AT JD" antique-johndeere at lists.antique-tractor.com>
>>Date: Wed, 9 Feb 2005 18:11:26 -0800
>>Subject: [AJD] Late A cylinder block vs Early 60 Cylinder block???
>>
>>> A few questions about JD Cylinder Block compatibility:
>>> 
>>> Some background Data:
>>> 
>>> 1.) Removing Cylinder Block from JD A Serial # 654037
>>> 
>>> 2.) Friend Needs Cylinder Block for Early 60
>>> 
>>> 3.) Parts catalog states Cylinder Block for A's Serial # (648000-    )
>>> is
>>> AA5052R = A3703R or A4320R (Sub for AA4373R)
>>> 
>>> 4.) Parts Catalog states Cylinder Block for all 60's is AA5052R =
>>> A4320R
>>> 
>>> 5.) The above states that a 60 block can be used on a late A.
>>> 
>>> 6.) But the Late A block isn't mentioned as useable on the 60's
>>> 
>>> Questions:
>>> 
>>> a.) Is there a difference in the blocks such that a Late A Block
>>> (A3703R)
>>> cannot be used in a 60?
>>> b.) If Yes, what are(is) the difference(s)?
>>> c.) Does a specific head have to be used with each block?
>>> 
>>> Vely confusing! 
>>> 
>>> 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
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Antique-johndeere mailing list
>>> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>
>>
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