Yesterday's Tractor Co.
Shop Now View Cart
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile    Log inLog in 

4 cylinder diesel pistons


 
Post new topic    
View previous topic :: View next topic  
Author Message
MarkWisconsin
New User


Joined: 28 Jul 2012
Posts: 12


Report to Moderator

PostPosted: Wed Apr 07, 2021 6:42 pm    Post subject: 4 cylinder diesel pistons Reply to specific post Reply with quote

Hi, I've been searching for 10 over Diesel pistons for late 4 cylinder 801/4000 type engine for Ford Tractor. The block number is CONN6015J. Its the block that
has the oil filter boss cast into the block. I've checked all the usual places including Yesterday Tractor Store. Im looking for pistons only so the cylinders can
be bored and with out using sleeves. Any ideas for me. Thanks Mark
 
Back to top
View user's profile
Bern
Tractor Guru


Joined: 05 Apr 1999
Posts: 7724


Report to Moderator

PostPosted: Wed Apr 07, 2021 7:00 pm    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

Doubt you're going to find .010 over pistons. They don't even show in the NH parts catalog. .020 and .030 are shown though.
 
Back to top
View user's profile
MarkWisconsin
New User


Joined: 28 Jul 2012
Posts: 12


Report to Moderator

PostPosted: Wed Apr 07, 2021 8:33 pm    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

Thanks Bern, Thats interesting. That makes sense because I only found rings 20 and 30 over. Thanks very much. That information helps me look for the correct thing instead of something that doesnt exist. Mark
 
Back to top
View user's profile
rustred
Tractor Guru


Joined: 01 Jul 2009
Posts: 34483


Report to Moderator

PostPosted: Wed Apr 07, 2021 9:00 pm    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

The practice is to locate pistons , then bore to the piston size. Never even heard of .010 over pistons.
 
Back to top
View user's profile
showcrop
Tractor Guru


Joined: 13 Dec 2000
Posts: 29414
Location: Chester NH

Report to Moderator

PostPosted: Thu Apr 08, 2021 3:11 am    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote



As Rustred indicated you are going at it backwards. Take the block to the machine shop. They will assess your block and source the pistons and then bore to the correct diameter for whatever pistons turn up. They are doing it every day. They will also most likely save you significant money.
 
Back to top
View user's profile
Bern
Tractor Guru


Joined: 05 Apr 1999
Posts: 7724


Report to Moderator

PostPosted: Thu Apr 08, 2021 9:28 am    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

There's one step before yours: measure the bores first, determine the dimensions of the worst one, then figure out what size pistons you need to clean up the hole.

I'm rebuilding a small block Chevy right now. I measured the worst hole at about .017 wear. I thought about going .020 oversize, but the machinist talked me into going .030. He said I likely could not measure the full extent of the wear using a rounded tool up against the ring ridge step. Made sense to me.
 
Back to top
View user's profile
wore out
Tractor Expert


Joined: 01 Oct 2019
Posts: 2151


Report to Moderator

PostPosted: Thu Apr 08, 2021 10:30 am    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

CVPost-Bern wrote:
(quoted from post at 10:28:50 04/08/21) There's one step before yours: measure the bores first, determine the dimensions of the worst one, then figure out what size pistons you need to clean up the hole.

I'm rebuilding a small block Chevy right now. I measured the worst hole at about .017 wear. I thought about going .020 oversize, but the machinist talked me into going .030. He said I likely could not measure the full extent of the wear using a rounded tool up against the ring ridge step. Made sense to me.


That MAY have been a waste of 0.010" of cast iron.

He could have waited with ordering the pistons and bored the worst hole first to see if it would clean up at 0.020", and if not then proceeded to order the 0.030" pistons, IMHO.
 
Back to top
View user's profile
Bern
Tractor Guru


Joined: 05 Apr 1999
Posts: 7724


Report to Moderator

PostPosted: Thu Apr 08, 2021 11:17 am    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

Actually, that MAY have been a waste of .005 of cast iron. 5 thou on each side of the cylinder wall equals 10 thou overall on the diameter.
 
Back to top
View user's profile
MarkWisconsin
New User


Joined: 28 Jul 2012
Posts: 12


Report to Moderator

PostPosted: Fri Apr 09, 2021 5:12 am    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote

Thanks much for all responses and help with my Diesel Piston question. Still searching for a source for these diesel pistons. Any ideas? Mark
 
Back to top
View user's profile
showcrop
Tractor Guru


Joined: 13 Dec 2000
Posts: 29414
Location: Chester NH

Report to Moderator

PostPosted: Fri Apr 09, 2021 8:56 am    Post subject: Re: 4 cylinder diesel pistons Reply to specific post Reply with quote



Mark, read the responses again.
 
Back to top
View user's profile
:   
Post new topic    Yesterday's Tractors Forum Index -> Ford All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  

TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

YT Home  |  Forums

Modern View Forum powered by phpBB © 2001, 2005 phpBB Group

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters