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
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
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

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Kountry Life
John Deere Tractors Discussion Forum

4020 tachometer

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

06-12-2018 18:09:51

Report to Moderator

The tachometer on my 4020 and started jumping. I assume that itís sort of in its death throws? Is there anything I can do in the way of lube that might prolong his life? There is around 6000 hours on it.

[Log in to Reply]   [No Email]

06-15-2018 11:18:17

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
Might just need a new cable mine does this every so often and then the cable breaks replace the cable and itís good to go again

[Log in to Reply]  [No Email]

06-14-2018 03:34:46

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
I put a new tach in a 4000 two years ago and it lasted ninety hours .The next one ran to fast and the third one lasted just a few hours. I sent my original one to Star Speedometer he rebuilt it for two hundred forty bucks with a new cable.It is still working fine .So the three I had were pure junk.

[Log in to Reply]  [No Email]

06-13-2018 20:20:38

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
Are the new (replacement) tachs really as bad as some say? Or is it just a gamble? The tach on my 1020 doesnt work, it'd be awfully handy to have it working again. I see the ones on this site are around $190 with cable, just wondering about the durability and quality. What drives them inside the engine? Never took one apart before.

[Log in to Reply]  [No Email]
Tx Jim

06-13-2018 05:09:36

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
Has speed/hour meter drive cable been lubricated lately?

[Log in to Reply]  [No Email]

06-14-2018 11:52:12

Report to Moderator
 Re: 4020 tachometer in reply to Tx Jim, 06-13-2018 05:09:36  
I just unhooked the cable at the dash and oiled it with some 30 weight oil. I didn't get a lot to go down the cable but it did seem to be a big improvement.

[Log in to Reply]  [No Email]

06-13-2018 04:36:34

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
Star Speedometer 386-569-5284 has ad in Green Magazine.I get a laugh out of people that install Mexican made replacement tach with extra digits and it says horas instead of hours and seller says it is original.

[Log in to Reply]  [No Email]

06-13-2018 03:30:41

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
I heard there are places that rebuild old tachs. I would look into that before I bought a new one. I bought a new one and they are junk. They don't last and never read very accurate. That's a genuine jd replacement not an aftermarket version.

[Log in to Reply]  [No Email]
david from kansas

06-12-2018 19:07:59

Report to Moderator
 Re: 4020 tachometer in reply to Ferd, 06-12-2018 18:09:51  
Mine has been doing that for years, but only when RPMs are at the high end. Also, the hour meter quit years ago, at 7xxx hours.

[Log in to Reply]  [No Email]

06-13-2018 04:32:30

Report to Moderator
 Re: 4020 tachometer in reply to david from kansas, 06-12-2018 19:07:59  
Ours is stuck at 6949.1 hours and has been as long as I have been driving it. (35 years). The rpms read correctly still. I have seen a bad cable cause them to that also.

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

Hop to:

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