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

Company Logo (800) 853-2651 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
Salvage

Community
Discussion Forums
Project Journals
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
Ford 8N/9N Club
Kountry Life
  
Ford 9N, 2N & 8N Discussion Forum
:

Adjusting proper engine speed?

Welcome Guest, Log in or Register
Author  [Modern View]
jmeyert4a

11-21-2021 10:48:53




Report to Moderator

OK guys, next question...

Engine speed and PTO speed seem to be important factors in setting up and getting the most out of the tractor. I see lots of reference to a 2,000-2,200 RPM max engine speed, a 400-500 RPM idle speed, and a 540 RPM PTO speed.

So, here's my question... On the pre-PROOFMETER tractors like mine (early 1950, I think), where in the heck does one start?

I finally have it running "pretty well", as it starts when I ask it, and has quit popping, sputtering and back-firing. It has been too wet to tryout my bush hog, but it SEEMS to pull pretty good up hill, (where it hadn't before), and idles down so low that it shows zero oil pressure, so I turned it up to a speed where I'm showing 10 PSI at a normal running temp.

But... I have NO idea if I'm spinning the old motor 1,000 RPM or 3,000. This is my first tractor and I have nothing to compare to.

Advice?

Thanks in advance,
Jim

[Log in to Reply]   [No Email]
jmeyert4a

11-27-2021 09:18:26




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
I wish that there was a simple Like or Thank You button.

I'm anxious to get out and try this, but have to admit that I'm a bit of a softy! It is just now creeping into the forties this morning and windy! I just moved here from fifty plus years in Southern California... To me, THIS is freezing! ;- )



[Log in to Reply]  [No Email]
Jim.ME

11-26-2021 19:22:33




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Plenty of used Dwell Tachometers out there (use a 12-volt battery to power it if needed), plenty of contact type hand held tachometers (just stick the probe shaft right center of the PTO shaft to read PTO speed) and plenty of non-contact hand held tachometers as well. Some of each type can all be found for less than $50, some less than $25. Maybe your local parts store has one you can rent or borrow.

[Log in to Reply]  [No Email]
Btzj02

11-26-2021 18:43:26




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Quoting Removed, click Modern View to see;

I apologize, this is hard to explain on this post. The app can be made to read in RPM. Like others have said your goal is to make the shaft appear to stop rotating. The strobe keeps blinking but when the shaft and strobe RPM are perfectly matched the shaft APPEARS to have stopped rotating. At this point the strobe RPM matches the shaft RPM. The best I can suggest is go to youtube and search for a video!

[Log in to Reply]  [No Email]
jimtrs

11-26-2021 15:03:55




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Quoting Removed, click Modern View to see

Just start cutting. One can "just" tell, after awhile, when things are right. Sounds good, cutting good, moving good. Experiment a little. Get some experience.

You'll figure it out.



[Log in to Reply]  [No Email]
Jim WI

11-26-2021 14:02:08




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Quoting Removed, click Modern View to see

If the app is set to blink at 9 Hz, when the PTO is turning at 540 rpm the PTO will appear to be stationary. This works best if you mark the shaft in one spot with a contrasting color or reflective piece of tape. Otherwise it's possible for multiple PTO shaft positions to appear to be one position.



[Log in to Reply]  [No Email]
Btzj02

11-24-2021 19:27:49




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Set to strobe at the top and led at the bottom. The goal is to get the reflective tape on the pto shaft to "stop" moving. The slider on the app is the grouse adjustment and the small dial is the fine adjustment. I found that the darker it is the easier it is to see. Start the engine and set your phone flashing.
Once you find the current speed adjust throttle up or down to zero in on 540! It takes some practice and adjusting the flashing characteristics helps with seeing the reflective tape.

[Log in to Reply]  [No Email]
jmeyert4a

11-26-2021 11:18:40




Report to Moderator
 Re: Adjusting proper engine speed? in reply to Btzj02, 11-24-2021 19:27:49  
Good morning and thank you again for all your help.

I'm not certain what you mean by stop moving. Stop blinking and give a steady read?

Since the app is in Hz and we are looking for 540 RPM, I'm guessing that I set the slider on the phone to 9 Hz, correct? Then start at about 3/4 throttle and begin adjusting/searching from there?



[Log in to Reply]  [No Email]
deanostoybox

11-26-2021 12:11:08




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-26-2021 11:18:40  
If you put the tractor in 4th gear and run down a flat stretch of road with the throttle wide open, and have someone in a car with a working speedometer following you, you should be traveling at about 14-15 MPH. If so then the max speed screw on the governor is set correctly.

Same test at 3/4 throttle should get you 9-10 MPH or PTO RPM. Close enough anyway.



[Log in to Reply]  [No Email]
deanostoybox

11-26-2021 12:23:15




Report to Moderator
 Re: Adjusting proper engine speed? in reply to deanostoybox, 11-26-2021 12:11:08  
I should qualify that by saying provided you have the correct size rear tires and any aux. trans. is in direct, not speeding you up or slowing you down.



[Log in to Reply]  [No Email]
Btzj02

11-22-2021 05:56:04




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Strobily is the app I used. Yeah, not sure how the old timers did it without a proof meter or smart phone. I am sure there was a simple ingenious way to do it!



[Log in to Reply]  [No Email]
jmeyert4a

11-24-2021 11:16:11




Report to Moderator
 Re: Adjusting proper engine speed? in reply to Btzj02, 11-22-2021 05:56:04  
Good morning... Well, I downloaded and installed the Strobily App., but can't find (or figure out) how to use it. Can you point me in the right direction?



[Log in to Reply]  [No Email]
showcrop

11-21-2021 13:50:45




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Pretty much all tractors are run at way below PTO speed when not using the PTO or doing hard work. What do have in it for oil?



[Log in to Reply]  [No Email]
jmeyert4a

11-21-2021 12:48:14




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Thanks! That might be what I'm looking for... What was the app called?

(I doesn't quite explain how things were done "way back then", though, does it? ;- )



[Log in to Reply]  [No Email]
Btzj02

11-21-2021 12:39:44




Report to Moderator
 Re: Adjusting proper engine speed? in reply to jmeyert4a, 11-21-2021 10:48:53  
Before I got a proof meter that was accurate I had the same problem. I loaded a strobe app on my smart phone that had the ability to adjust the indicated RPM. I placed a piece of reflective tape on the PTO shaft, adjusted the throttle and used the strobe to find a PTO shaft speed of 540RPM. 540RPM on the PTO shaft is close to 1500RPM on the engine. Once the 540RPM point was found I placed a mark on the throttle to identify the point. If not using the PTO and working the tractor I ran the throttle one or two clicks higher than the mark.

[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


Today's Featured Article - The Engine Rebuild Kit - by Curtis Von Fange. I always liked engine rebuild kits. They have all the replacement parts for overhauling an engine without going to the store to get gaskets, special measuring tools, or miscellaneous parts. They come neatly packaged, clean and tidy. But it's important not to let that packaging lull you into a false sense of security. The appearance of matching sleeves, pistons, rings, and bearings can cause frustration and agony if not properly measured and installed in a workshop environment. Following c ... [Read Article]

Latest Ad: 4386 or 4586 IH [More Ads]

Copyright © 1997-2021 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