Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum

Caterpillar D4 6V Pony Motor

Welcome Guest, Log in or Register
Author 
Bernie

03-12-2000 10:23:08




Report to Moderator

I need information on the starting sequence. How do I engage the Pony Motor to start the Diesel Engine and then disengage it?




[Log in to Reply]   [No Email]
Mike

08-26-2002 13:14:40




Report to Moderator
 Re: Caterpillar D4 6V Pony Motor in reply to Bernie, 03-12-2000 10:23:08  
Posted similer on acmoc. I have a D45T. I dont know if this is right or wrong its what I was taught. My grandfather and my father retired from the USFS as cat skinners. I jump my 6 volt pony with my 12 pickup. It doesnt run the starter long enough to hurt it. Pull the engagment lever up to engage it. (If its sticky engage it while your starting the pony.) Let the pony run 30 seconds to minute to get it going good. Compression release should be in start. Engage the main by pushing the pony clutch lever forward. You may have to be gentale to keep from killing the pony. Once you have the main turning the pony clucth as well as the pony engagment lever should hold themselves. Switch from "start" to "run" on the compression release. With the main throttle shut off let the main spin at least a couple minutes esspecially if cold. The exhaust preheats the air intake for the main and the main should build oil pressure as well as fuel pressure. The intake for the main should get hot. You should be getting white smoke out the main stack. when you think it is warm enough, throttle up the pony (it runs alittle over 3000 RPM), and open the main throttle. I open mine about 1/2 way. The smoke should turn very dark grey to black color. Theroterticly it should jump to life. More often than not it will hit on a couple cylinders maybe even kick out the pony clutch. Rengage it and go again it should start pretty quick. Avoid starting fluid at all cost. If you have to use, it a 1/4 second burst in the direction of the air intake will fire it immediatly. To long of a burst, will send your pistons thru the oil pan, and your head into low orbit! Now that you have the main running, shut off the fuel to the pony. Let it run out of gas. The ponys were notourious for flooding making it harder to start the next time, and worse yet, the the excess gas had a habit of running into the crankcase and diluiting the oil. If at anytime you do flood it, check the oil. If it is raised at all, change the oil. There is a plug at the bottom of each head that will drain excess gas if you do flood the pony. Watch the pony spark plug, Boy would I like to get my hands on the dumb#$@# that designed that one. Anyway the pony bites hard if your not carefull. Hope this helps, if you have any comments email me. Happy Dozing Mike.

[Log in to Reply]  [No Email]
Catmandoo

02-21-2001 18:08:21




Report to Moderator
 Re: Caterpillar D4 6V Pony Motor in reply to Bernie, 03-12-2000 10:23:08  
Bernie,

I've got every amnual for that critter. If you need me to copy and mail you something, just give me a hoot.

CMD



[Log in to Reply]  [No Email]
FRED

03-12-2000 13:35:19




Report to Moderator
 Re: Caterpillar D4 6V Pony Motor in reply to Bernie, 03-12-2000 10:23:08  
start pony moter let it warm up a little. pull back clutch lever pull up pinion lever. if adjusted right it will stay in. push clutch lever forward diesel should turn over. should have said to put compression release in start position first. with diesel turning over advance fuel to idel put compresion release to run. if all is right it will start. the starting pinion will self release. FRED



[Log in to Reply]  [No Email]
Trackhappy

03-12-2000 20:00:33




Report to Moderator
 Re: Re: Caterpillar D4 6V Pony Motor in reply to FRED, 03-12-2000 13:35:19  
If you want a full description go to>Link

Cheers
Glenn



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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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