Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Kountry Life
  
Ford Tractors Discussion Forum
:

Re: Bi-directional pistons??

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]
Destroked 450

11-11-2019 18:00:04




Report to Moderator

What is it that your working on?

I've seen post about stuck rings but no info on what it is, tractor, ind power unit?

A photo of the pistons and rods would help.

Never heard of bi directional pistons, some of those engines used a headland top ring that was only used a few years, if you have those pistons I'd replace them with a set of normal style pistons. Most of the turbo engines had Keystone style tapered top rings.

They changed the rods on the later engines which require a different piston.

What are you working on?

What are you wanting to build?

[Log in to Reply]   [No Email]
Robert (ID)

11-11-2019 18:53:59




Report to Moderator
 Re: Bi-directional pistons?? in reply to Destroked 450, 11-11-2019 18:00:04  
Its a 268 NH web block, the plan is/was to build it and put in in a 5000 basket case.


The original block had porosity, they had been adding water to it for some time, then water and freezing temps made it null and void. The rear exh port was completely plugged with carbon, cyl 3 was partial plugged..It had been run that way for some time..

The story I got with this used replacement block (short block configuration: crank,balancer,rods,pistons,cam,timing cover) was it was from a 7710 that had a cab fire. I decided while it was that far down to pull it apart and measure everything. Bores look like a simple hone and they will run, all bearings are std.

I got the pistons out and they had 2 compression and 1 oil ring, but not old headland style, and they are gunked up bad, piston #4 had the second compression ring stuck so bad I had to heat it to get it out of the ring land. I started trying to locate rings, every time I find 7710 rings they have 3 compression rings and 1 oil ring.
So I start chasing numbers, Bern confirms that the right pan rail numbers are NH numbers. 87840243 Part number 3m14 date code dec 14 93. 87840243 is the engine code for a 9030 versatile. So I look up 9030 and find 2 options for pistons and rings.. one of which is the same as the ones i have been looking for. NH is $95 per set, Reliance does them for 65.58 a set.
I was told these pistons are bi-directional pistons and have a higher compression ratio.

I hope someone can tell me if I can put standard 7710 pistons in it..

not looking for 100+ hp 75 would be plenty

Keep in mind, I wrench for the local Government 40+hrs a week and still help dad with the family farm. I do these oddball, weird, basketcase jobs on the side. Sometimes they are fun... Sometimes they make me want tear out what little hair I have left..

[Log in to Reply]  [No Email]
[Show Entire Topic]     [Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). We have the parts you need to repair your tractor - the right parts. Our fast shipping, low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2019 Yesterday's Tractor Co.

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

Website Accessibility Policy