Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   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 in to check your private messagesLog in to check your private messages   Log inLog in 

JD70 LP question


 
Post new topic    
View previous topic :: View next topic  
Author Message
JPFL
Regular


Joined: 01 Dec 2012
Posts: 51


Report to Moderator

PostPosted: Thu Jan 10, 2013 7:00 pm    Post subject: JD70 LP question Reply to specific post Reply with quote

New to me 70LP, have not gotten a service manual yet. Does the LP come in close contact with the cooling system? I am getting coolant from the round diaphram between the fuel valve and the manifold. Thanks in advance for any info. Jim
 
Back to top
View user's profile
NEIADan
Regular


Joined: 24 Dec 2007
Posts: 269
Location: Northeast Iowa

Report to Moderator

PostPosted: Thu Jan 10, 2013 7:17 pm    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

It sounds like you are talking about the vaporizer. On the one side you have a diaghram that open and closes to match the vacuum of your intake. On the other side you have coolant circulating through a circular honeycomb and liquid propane in separate valley. The idea is to use the heat from the coolant to preheat the lp to a vapor in correlation with the diaghram of going from high pressure to a lower pressure in the intake providing the most vaporization of the lp. Those aluminum vaporizers are easily damaged allowing anti freeze to leak. often taking it apart and resurfacing the aluminum comb and plate with a new gasket and sealant it can be remedied.
 
Back to top
View user's profile
JPFL
Regular


Joined: 01 Dec 2012
Posts: 51


Report to Moderator

PostPosted: Thu Jan 10, 2013 7:26 pm    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

Thanks Dan, I will need to wait until manual comes. Jim
 
Back to top
View user's profile
Hugh McKinney
Regular


Joined: 06 Nov 2009
Posts: 460


Report to Moderator

PostPosted: Thu Jan 10, 2013 8:50 pm    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

I have got a 70 LP and I recently had the exact same experience. It turned out that the aluminum passages through the Century vaporizer/regulator had developed pits where the gasket surfaces should not have any. By the way, no, there should not be any direct contact between the propane and the antifreeze/coolant. What I did, that fixed my problem is, I got about ten sheets of 120 grit sandpaper, and sanded both the body of the regulator/vaporizer and the cover (the one that doubles as a mounting plate to the bracket on the tractor) , until it they were really flat. I also used a little JB Weld to speed things up. I did it about 5 months ago, and after installing a new kit from Carb & Turbo Systems, it has performed flawlessly. Good luck, and be persistent, it's not rocket science, it just takes a lot of effort to sand it really flat and make it leak-proof. Hugh
 
Back to top
View user's profile
Dan in North Houston
Regular


Joined: 07 Nov 2010
Posts: 216


Report to Moderator

PostPosted: Fri Jan 11, 2013 4:40 am    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

Which manual have you ordered? I have a 630LP and the deere service manual for the 630 (SM2008 for the 60 series) doesn't have much on the LP system.
There is a separate service manual for the LP gas tractors - SM-2015 "LP-Gas equipment for John Deere Tractors". It has the details that you are looking for.
 
Back to top
View user's profile
STYLED DEERES
New User


Joined: 14 Aug 2011
Posts: 16


Report to Moderator

PostPosted: Sat Jan 12, 2013 2:44 am    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

HUGH could I get the phone # for that place please I cant seem to get rebuild kits for the M-4 converters for my 620s &720s.I tried Nick BERBIERI and Davenport no luck.
 
Back to top
View user's profile
Dalet
Long Time User


Joined: 18 Mar 2012
Posts: 985
Location: Minnesota

Report to Moderator

PostPosted: Sat Jan 12, 2013 7:12 am    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

http://www.carbturbo.com/
 


Last edited by Dalet on Sat Jan 12, 2013 7:12 am; edited 1 time in total
Back to top
View user's profile
JPFL
Regular


Joined: 01 Dec 2012
Posts: 51


Report to Moderator

PostPosted: Sat Jan 12, 2013 7:14 am    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

Dan, I got in touch with JD customer services and a young lady e-mailed me a manual on 70 JD LP-gas instructions (# OMR2050 D3) that helped a lot. It did not go into rebuilding the vaporizer, said to send to JD dealer for repair. So I am still looking, I tried to contact Century Gas Equipment in Lynwood CA. I will try again Mon to contact them. The vaporizer is a model "M". Thanks for the help. Jim --No-Advertising-in-Forums
 
Back to top
View user's profile
JPFL
Regular


Joined: 01 Dec 2012
Posts: 51


Report to Moderator

PostPosted: Thu Jan 17, 2013 5:41 pm    Post subject: Re: JD70 LP question Reply to specific post Reply with quote

Styled Deeres, I had my vaporizer rebuilt by a local LP man and he replaced my M-4 with a M-5, he had a kit for my M4 but it was beyond repair.So he rebuilt a M5 for my tractor. Let me know if you still need a kit??? Jim --No-Advertising-in-Forums
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> John Deere All times are GMT - 8 Hours
Page 1 of 1

 
Jump 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.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

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