(800) 853-2651
SHOP NOW

Recent content by Bulldozer

Yesterday's Tractor Forums
  1. B

    Rear seals

    If you have a 1950 N series, there is an inner and outer rubber lip seal. The outer seals the wheel hub. The inner seals the axle. The 1948 & 1949 only have the outer seal, only. With the 1950 you need the following soft parts for each wheel. 1. A8NN4248A, outer seal assembly with steel...
  2. B

    Right color?

    Valspar "ARMOR" oil based enamel can also be color matched to any color. Planning on color matching it to the Valspar spray can 5339-13 FRD GRAY which is a light gray.
  3. B

    Right color?

    Let the numbers do the talking. Made samples of TISCO TP240SP, NH M1J-957-SE5DS (39/62) Valspar 533-13 FRD GRAY, & TSC/Majic 8-22967 Light Ford Gray on 1"x 1" x 1/4" aluminum. Had the samples analyzed on a spectrum analyzer at Home Depot. By eye the TISCO TP240SP has the greatest green hue...
  4. B

    Right color?

    Let the numbers do the talking. Made samples of TISCO TP240SP, NH M1J-957-SE5DS (39/62) Valspar 533-13 FRD GRAY, & TSC/Majic 8-22967 Light Ford Gray on 1"x 1" x 1/4" aluminum. Had the samples analyzed on a spectrum analyzer at Home Depot. By eye the TISCO TP240SP has the greatest green hue...
  5. B

    hydraulic oil /engine oil

    On Shell Rotella T1 , 30 wt monograde Comparing four straight 30 wt motor oils,with high zinc concentration (1200 ppm) compared current SN rated levels(800 ppn). Brand lables include, Shell Rotella T1 diesel , TSC/Traveler diesel , Valvoline diesel,and Lucas automotive. Shell Rotella 30 wt...
  6. B

    hydraulic oil /engine oil

    On the Shell rotella T1 monograde, 30 wt diesel engine oil. The N manual indicates 10W between -10 to +10F 20W between 0 to 32F 20 between 32 to 86F 30 between 86-122F The manual was written when only straight weight mineral oil was avaiable in non detergent formulation. Looking at typical...
  7. B

    PTO seal and gasket

    The original seal is leather made by Chicago Rawhide(CR) and the width = .879" The replacement rubber lip seal, D9NN703BB, width = .630" length of the original sleeve = 1.000" lengh of replacement sleeve = 1.100" The replacment seal casing should be pressed to contact the outer ball bearing...
  8. B

    crankshaft pulley

    How much clearance between billet steel pulley ID and the crankshaft is recommedned?
  9. B

    Changing PTO Seal

    Recently rebuilt my own 8N PTO shaft assembly unit. It was real project. It appears the that your PTO assembly unit maybe an aftermarket design evidenced by the small snap ring at the base of the spline. The sleeve at the base of the spline on the 8N has a major interfence fit. It must be...
  10. B

    Need advice re ring/crank bearing replacement

    Another consideration on this crankshaft bearing replacment question is at what point are the crankshaft journals ground and polished to another underside bearinfg size. My thought is leave the journals alone unless the bearings are being eaten up and throwing lots of metal into the oil. It is...
  11. B

    Need advice re ring/crank bearing replacement

    Multi weight engine oil has viscosity index improvers that reduce the thinning with increase in operating temperature. An SAE 10-30 wt oil is base 10 wt with viscosity index (VI) improver (heat sensitive additives) The VI improver additives are susceptable to shearing damage in non synthetic...
  12. B

    Need advice re ring/crank bearing replacement

    Always understood that most of the journal wear occurs at start up rather than at normal operating conditions. Ok, so why does the flatheat N have the 0-50 psig oil pressure gauge and the OHV NAA have the 0-80 psig oil pressure gauge? Both engines have equal rated 2000 rpm and nearly equal...
  13. B

    Need advice re ring/crank bearing replacement

    and genrators and irrigation pump engines at zero oil pressure with light weight crankshafts and two & four cycle outboard engines and motor cycle engines. gravity: its the gravity load on the crankshaft.
  14. B

    Need advice re ring/crank bearing replacement

    If the oil pump upgraded from a 9/16" width gear to the 3/4" width gear the engine must be "lined bored" and oversize manin crnakshaft bearings are then required. The bearing cap must be replaced for the wider 3/4' oil pump gear.
  15. B

    Need advice re ring/crank bearing replacement

    Always thought that the engine needs minimum 10 psi oil pressure for every 1000 rpm. So a 2000 rpm rated flat head engine needs only 20 psig minimum oil pressure at the gauge when operating at normal operating temperature. 30 psig is better. That is the reason for the low range oil pressure...
See more
Yesterday's Tractor Forums
Buy Tractor Parts Here Buy Tractor Manuals Here

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.

Copyright © 1997-2025 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

Back
Top