Yesterday's Tractor Co. Compare our Prices For Parts
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads

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
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
John Deere Tractors Discussion Forum
Show Parts for Model:

John Deere G, 1951

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

05-09-2010 13:30:53
75.252.15.51



Report to Moderator

This is my G that I just bought. The motor was stuck and it took a lot of work to get it free. I put a 20 ton jack and put some pressure on the pistons, then I took a crowbar and pryed on the flywheel teeth against the starter. After about 1000 times back and forth I finally made a full round on the flywheel, ha ha I'm going to see if it will run without rebuilding it. I smoothed out a lot of humps and bumps in the bowl areas and opened the intake port from 1 and 3/4" to 2". I might also make a cold intake manifold for it. I would like to get a carburator with a little more air flow but I don't know what to use yet. Sugestions? I wish it had 10&1/2 to one instead of 4&1/2 to one compression ratio; I think I could get 50 hp instead of 38 hp.
I wish that I had taken a before and after picture of the head so you could better see the difference. 10 hours of work on the head but no money! Free horsepower, ha ha.

[Log in to Reply]   [No Email]
gtx1967jewison

05-11-2010 19:50:04
174.39.230.166



Report to Moderator
 Re: John Deere G, 1951 in reply to rlp, 05-09-2010 13:30:53  
awesome tractor i'm jealous! pistons can b had all over. 6.5-7 to one is plenty with that huge bore, any more wont burn pump gas n gets temperamental, real high like 10 or eleven wont lug down either & very hard if not impossible to start without pulling. not a useable tractor & marginal for pulling even. a good cam helps alot.



[Log in to Reply]  [No Email]
The Dukester

05-11-2010 18:45:38
4.229.144.241



Report to Moderator
 Re: John Deere G, 1951 in reply to rlp, 05-09-2010 13:30:53  
Do a good overhaul on the engine...bore it if it needs it and put in new alumy 6.5:1 gas pistons, good valve job and carburetor cleaning. Perfect tune job. Maybe take 100 thousandths off the head..no more and you'll have 55-60 horse and it'll still burn pump gas, be easy to start and use for anything. You DON'T WANT 10.5:1 compression...trust me.



[Log in to Reply]  [No Email]
rlp

05-12-2010 10:32:06
75.231.136.163



Report to Moderator
 Re: John Deere G, 1951 in reply to The Dukester, 05-11-2010 18:45:38  
Thanks for the info on the compression ratio of the pistons, but I still would like 10 1/2 to one pistons. That's what I put in my 460 Ford engine and it works great. I just have to dial back the ignition till it stops pinging. Gets good fuel milage (for a 460) and it runs great on propane. I know you don't agree but if you know where I can get some, let me know.



[Log in to Reply]  [No Email]
pathand13

05-09-2010 14:32:51
99.135.169.91



Report to Moderator
 Re: John Deere G, 1951 in reply to rlp, 05-09-2010 13:30:53  
John deere made a kit back in them days that incuded high compression pistons and a gas manifold that gave the G 50hp. They did that for thier late styled A with gas engine had the same HP. My 47G has it and would push 50hp on a proney brake off the belt pulley



[Log in to Reply]  [No Email]
rlp

05-09-2010 21:11:17
75.231.82.93



Report to Moderator
 Re: John Deere G, 1951 in reply to pathand13, 05-09-2010 14:32:51  
Where did you get your pistons? That's what I need. Do you know what they raised the compression ratio to?



[Log in to Reply]  [No Email]
Will P

05-09-2010 14:28:35
67.53.144.50



Report to Moderator
 Re: John Deere G, 1951 in reply to rlp, 05-09-2010 13:30:53  
Without gas pistons you are wasting your time.



[Log in to Reply]  [No Email]
rlp

05-09-2010 21:20:37
75.231.82.93



Report to Moderator
 Re: John Deere G, 1951 in reply to Will P, 05-09-2010 14:28:35  
Well I have lots of time to waste, and besides, it's good therapy! ha ha. See that Ford backhoe in the picture? I ported and polished the head on it. It has quite a bit more power than a stock Ford. Stock is 60 hp. I'm guessing it has 70 or 75 now. It will push almost as much dirt as my boss's 310 John Deere and it has around 100 hp I think.



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

Hop to:

TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  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. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 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