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 

1966 G1000 Wheatland Injector Pump removal

Goto page 1, 2  Next

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


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Tue Apr 09, 2019 6:36 am    Post subject: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

We have a G1000 Wheatland tractor which needs repairs to the injector pump. It is surging when running and from what I have read it has a fiber ring which is failing. The pump is fully operational at the moment but I don't want to damage it before repairs are made.
My question is what is the correct procedure to remove the pump for repairs. Does the engine need to be turned to a certain position so that when replacing the pump it will be in correct time?
I have never removed an injector pump on this tractor so will appreciate all advice.
 
Back to top
View user's profile
SWMolines
Long Time User


Joined: 29 Apr 2002
Posts: 556


Report to Moderator

PostPosted: Tue Apr 09, 2019 7:19 am    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Clean the area around the pump and all the injectors as best you can to keep dirt out.

To keep the pump in time with the engine:

First remove the rectangular cover with the two screws from the side of the pump to expose the timing marks inside the pump.

Then, rotate the engine until the pump timing marks are aligned. It is also a good idea to mark the flywheel just in case the engine should be nudged while working on it.

At that point, the pump can be removed and re-installed with the timing marks aligned and the engine should run as it did before the pump was removed (hopefully without the surging issue).

After installing the pump, all of the injection lines will need to be bleed to remove trapped air.

Not a difficult job.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Tue Apr 09, 2019 9:00 am    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Thank you very much SWMolines. Your step by step procedure is very much appreciated.
 
Back to top
View user's profile
rustred
Tractor Guru


Joined: 01 Jul 2009
Posts: 30758


Report to Moderator

PostPosted: Tue Apr 09, 2019 5:08 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

just remove the pump after a wash job. don't make a bit of difference where the marks are. then... when u go to install the pump you get the engine on TDC on #1 cyl. line up the timing marks on the flywheel to factory spec. 705 is 11 degree's not sure if this one is the same. then.. you look in the pump and make sure the dot on the shaft is to the top. then you carefully slide it over the LUBED seals not to fold them. then you line up the timing marks in the pump window by turning the pump and tightening the two bolts.
just lining up pump marks don't tell you where the engine timing was set at , it could have been out of time all along. you need to go through the whole procedure. plus its a good idea to set the valve lash also to make sure you have a good running unit.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Tue Apr 09, 2019 6:21 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Thank you Rustred. Additional information is always appreciated. Much easier to have a good understanding BEFORE removing parts because it makes replacing them much easier and more satisfactory. All suggestions and comments are welcome and appreciated.
 
Back to top
View user's profile
SWMolines
Long Time User


Joined: 29 Apr 2002
Posts: 556


Report to Moderator

PostPosted: Wed Apr 10, 2019 4:29 am    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

It is always good to verify timing when working with an injection pump or distributor (magneto). I have come across several MMs that have had the flywheel indexed incorrectly over the years and the timing marks are not visible when #1 is at TDC.

That makes timing a diesel more complicated unless you have the head off the engine to determine TDC accurately.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Wed Apr 10, 2019 5:22 am    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Thanks for the heads up SWMolines. Now that would lead to a head scratcher.

The correct procedure would be to remove the front valve cover and make sure the intake valve is just closing on #1 cylinder. Then rotate the crankshaft a 1/2 revolution and hope to find the timing mark in the index window. If it is visible we are ok. If not we have a problem.

Why would the index marks not be positioned in the proper location? Is it possible to install the flywheel in any position on the crankshaft or was it a factory error in marking the timing marks? Usually the flywheel will only install on the crankshaft according to the spacing of the flywheel to crankshaft attaching bolts.
 
Back to top
View user's profile
fossil
New User


Joined: 11 Mar 2018
Posts: 11


Report to Moderator

PostPosted: Wed Apr 10, 2019 8:55 am    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Surge may also come from a worn throttle shaft The worn elastoplastic ring bad will cause it to die when put from high speed to idle have a good diesel shop rebuild it for you .
 
Back to top
View user's profile
SWMolines
Long Time User


Joined: 29 Apr 2002
Posts: 556


Report to Moderator

PostPosted: Wed Apr 10, 2019 11:24 am    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

The flywheel on G1000s and similar motors can be put on the crank in any of 6 positions (6 bolt pattern) relative to the crankshaft.

Your method of watching the intake valve close + 1/2 turn will get you close. Verifying the timing marks in the pump are aligned should get you spot on. And, as has been already stated, it is always good to verify the timing when re-installing the pump using the marks on the flywheel.

I have had at least one Vista with the timing marks about 120 degrees off from the crank and had to use a measuring tape to re-set the timing after someone else had rebuilt the motor and installed it on the tractor. I was lucky enough to have a fly wheel on the floor that I could get the measurements needed to time the pump.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Wed Apr 10, 2019 12:08 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Thanks fossil.

No it doesn't die when idled down from high speed to low speed but rather idles unevenly and even at higher speeds surging. Yes having the pump overhauled is the plan. That is the reason I want to be sure that when I remove it I can replace it with the correct timing.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Wed Apr 10, 2019 12:12 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

To my knowledge this engine has never been apart so I am thinking the flywheel will be in its original position. Strange that there were no locating dowels or bolt pattern to align the flywheel with the crankshaft. Most I have come across couldn't be installed incorrectly. But never say never. Thanks for the further explanation SWMolines.
 
Back to top
View user's profile
molinegb
Tractor Expert


Joined: 13 Feb 2005
Posts: 2445


Report to Moderator

PostPosted: Wed Apr 10, 2019 5:22 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Just rebuild it yourself. Done several of my own. Don't have test stand but so far batting 1000. Have done the Bosch inline and
rotary also.
 
Back to top
View user's profile
ChrisQ
Regular


Joined: 05 Nov 2012
Posts: 291
Location: Jordan, MN

Report to Moderator

PostPosted: Wed Apr 10, 2019 5:42 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Dowel pins and bolts for the flywheel are equally spaced. I think it can be installed 8 different ways. Engine did not need to be apart for the flywheel to be off. Typically the flywheel is removed and resurfaced when a clutch is replaced. It more than likely has had a clutch in its lifetime.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Wed Apr 10, 2019 8:22 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Hi ChrisQ

What you say is very true the flywheel could have been removed for resurfacing upon a new clutch installation. I suspect being in the 3500 hour range that is quite possible. However, I know this tractor did some field work but spent a lot of its time as a PTO tractor. The drawbar is not worn from pulling implements like one would expect from many hours in the field.

Still, I will proceed with due diligence when checking the timing of the pump before removal. I do appreciate all thoughts and comments since each person shines a new light on issues that could crop up.
 
Back to top
View user's profile
MinniMan
Regular


Joined: 11 Dec 2012
Posts: 216


Report to Moderator

PostPosted: Wed Apr 10, 2019 8:29 pm    Post subject: Re: 1966 G1000 Wheatland Injector Pump removal Reply to specific post Reply with quote

Hi molinegb

Now you are showing more confidence in me than I have in myself. You have a great deal more experience with the eccentricities of an injection pump than I do. But I do appreciate your vote of confidence.

I am waiting for a warm sunny day so the shop warms up a little before I tie into this project. So far we still seem to be enduring a nasty windy cool week minus the snow our neighbours to the south are getting.
 
Back to top
View user's profile
:   
Post new topic    Yesterday's Tractors Forum Index -> Minneapolis Moline All times are GMT - 8 Hours
Goto page 1, 2  Next
Page 1 of 2

 
Jump 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 ]

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