Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   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
Kountry Life
  
Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
Show Parts for Model:

screwdriver test

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

01-11-2018 21:39:53




Report to Moderator

If a 1600 has been sitting for a while, should I do the screwdriver test before trying to start it? Also, will one of those engines go into a 77?




[Log in to Reply]   [No Email]
Tramway Guy

01-12-2018 07:45:22




Report to Moderator
 Re: screwdriver test in reply to tntractor, 01-11-2018 21:39:53  
There is a ‘screwdriver test’ only on American Bosch PSB pumps. Not Roosa Master or any in-line pumps. Those Vosch pumps were used on all 66, 77, 88 and 99 (6-cylinder) as well as Super variants of all those (except for a trial run of very few Super 77s with the Roosa Master) Super 55, and the 3-digit models through about 1961 or so, maybe later. None of the 4-digit tractors had Bosch pumps from the factory.

[Log in to Reply]  [No Email]
Olliejunkie

01-12-2018 06:57:06




Report to Moderator
 Re: screwdriver test in reply to tntractor, 01-11-2018 21:39:53  
Roosa pumps can stick too. I don't know how to check them. I don't know if they run away but I would be ready to shut the air off.



[Log in to Reply]  [No Email]
NYOlivers

01-12-2018 02:56:25




Report to Moderator
 Re: screwdriver test in reply to tntractor, 01-11-2018 21:39:53  
I would make sure you have good clean fuel to all the filters and at the injection pump. Prime fuel system with hand pump on lift pump. A good battery, check oil and should be good.



[Log in to Reply]  [No Email]
oliverkid

01-11-2018 23:23:25




Report to Moderator
 Re: screwdriver test in reply to tntractor, 01-11-2018 21:39:53  
1600 is a rosa master pump not a Bosch. Completely different animal so there is no screwdriver test.



[Log in to Reply]  [No Email]
rrman61

01-12-2018 07:36:54




Report to Moderator
 Re: screwdriver test in reply to oliverkid, 01-11-2018 23:23:25  
How about a 1650?



[Log in to Reply]  [No Email]
Dieseltech

01-12-2018 08:23:25




Report to Moderator
 Re: screwdriver test in reply to rrman61, 01-12-2018 07:36:54  
It's Stanadyne/Roosa on both early indirect and late direct injected diesels. Pumps and injectors are different though.



[Log in to Reply]  [No Email]
NYOlivers

01-12-2018 12:11:59




Report to Moderator
 Re: screwdriver test in reply to Dieseltech, 01-12-2018 08:23:25  
Hey Dieseltech: can you explain the "screwdriver test" for people who don't know what it is? Also what should be done to Bosch pumps if they do sit for awhile and what can be done to prevent them from sticking? I know its a little off the original thread, but it did get brought up so I though it would be a time for a refresher. Thanks



[Log in to Reply]  [No Email]
Dieseltech

01-12-2018 13:54:58




Report to Moderator
 Re: screwdriver test in reply to NYOlivers, 01-12-2018 12:11:59  
It's some times helpful on the American Bosch PSB pumps, after removing the fuel control unit and using a small pick or screwdriver to see if the plunger metering sleeve will move up/down freely. Most are stuck after setting awhile, and when the plunger is stuck just turning the engine with stuck internal parts wrecks the pump. Even a free metering sleeve does not mean the plunger is free too though.

[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 © 1997-2018 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