Yesterday's Tractor Co.
Shop Now View Cart
   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
Classic Trucks
Kountry Life
  
Ford Tractors Discussion Forum
Show Parts for Model:

172 diesel help

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

10-12-2017 19:01:07




Report to Moderator

My 861 diesel suddenly stopped running while I was mowing. Pulled it into the shop and after searching I found that it had a broken camshaft. sheared off right behind the timing gear. As I got deeper into it, here is what I found: Hydraulic pump gear is not damaged. The crankshaft gear has one broken tooth. The skirt on number 4 piston broke off at the lower oil control ring groove. the pieces were in the oil pan. There is no engine balancer and appears that it never had one (no gear on crank). Rod bearing on #4 is standard size. Don't know what others are since I haven't taken them apart yet. My questions for the experts are can I replace the cam and piston/rings in #4 without doing a complete ring - bearing job. I am going to plastigage the crank to see if it is still in tolerance. It had excellent oil pressure at 40 - 45 psi and started easily even cold.

[Log in to Reply]   [No Email]
agjim

10-13-2017 01:40:24




Report to Moderator
 Re: 172 diesel help in reply to ews, 10-12-2017 19:01:07  
Here's my experience and opinion: My 1801 industrial TLB has a 172 diesel. When I pulled the pan it had a piston with skirt broken. after removing all the pistons the others were cracked. I had other used pistons that had cracked skirts so I took 4 pistons with cracked skirts to a friend and had the skirts welded, filling in the lower oil ring land and installed the pistons without the rings in the lower grove at the bottom of the piston. This was 12 or more years ago and it is still running and performing well without oil consumption or any other ill effect.
My justification was that the 192 diesel did not use pistons with that ring, 8N started with a 4-ring piston and replaced it with a 3-ring piston, and few other diesel engines(except 2 cycle) use a ring at the bottom of the piston. Also the ring grove at the bottom of the skirt weakens the piston. Most of the pistons removed from the 172 diesel will have cracked or broken skirts. My engine starts great, runs great, and runs clean. The last 172 Diesel engine I built for a friend, I left the lower rings off the bottom of the skirt, and it worked out great.
I would pull all the pistons and check for cracks, weld any with cracks and even weld the replacement piston to prevent cracks and breaks in the future, then install them without the bottom oil ring. I have been working on these tractors and engines for a bunch of years.

[Log in to Reply]  [No Email]
Texasmark1

10-13-2017 05:54:19




Report to Moderator
 Re: 172 diesel help in reply to agjim, 10-13-2017 01:40:24  
Interesting. Ford had another problem too and that was cracked heads on their 4 cyl engines. Company over in E. TX. is a Ford parts dealer and reman facility. I was over there years ago and walked through their shop. Very interesting how they repaired the cracked heads. One of their specialties was a drop in gear shift tranny replacement for an SOS at $1750 which I thought was a super price at the time since you got a rebuilt tranny and all the hookup necessities. I happened to have a 4000 4 cyl SOS at the time and this did catch my eye. But my SOS was still functioning suitable enough and I didn't need it......actually I couldn't afford it at the time even if I needed it.

[Log in to Reply]  [No Email]
[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). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums


Copyright © 1997-2016 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