Yesterday's Tractor Co. New Parts for Old Tractors
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads

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
Classic Trucks
Kountry Life
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
Restoration & Repair Tips Board

Newly Overhauled Engine Somewhat Tight

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

10-13-2012 18:02:01
70.195.202.38



Report to Moderator

Hi, is it normal for a rebuilt engine to have a lot of drag at first? It seems to come from the rings, as the crank would turn nicely prior to installing the pistons.
I rebuilt an Allis-Chalmers B about 20 years ago, and the engine was so tight the starter would not crank it over. I could pull it through one compression with the hand crank and it would fire but it seemed to not have enough power to start running. I finally got frustrated and pulled it and started it. It ran great and very quickly loosened up so that the starter would start it nicely. It has run fine ever since with no problems.
Now I have a Lincoln welding machine, 1956, with the Continental engine, and it feels exactly the same way.
Is there anything I can do, like rig up a way to turn it some, so that it will loosen up, or is this necessary? Since I can't tow-start it, I wonder how I will ever get it started.

[Log in to Reply]   [No Email]
Robert major

10-28-2012 15:14:22
216.81.15.181



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
Hi just wondering if you ever managed to figure out getting this motor started?
Regards Robert



[Log in to Reply]  [No Email]
Robert major

10-17-2012 15:55:59
216.81.1.152



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
Hi I had this argument with a know it all guy that worked in a local shop once. He said an engine if its done right should always start first time with a battery. I called BS and walked away.

6 weeks later he had done a motor, I was in there and he had flattened 5 new batteries and was boosting the last one. I told him if he towed it it would start in 10ft or less,the shop owner heard me and he told guy to do it. 8ft and it ran like a watch, stopped it after a few mins and fired next time with the starter. 1 in 10 I do wont start and we tow them first time, so this can happen from my and dads 50 odd years experience.
Regards Robert

[Log in to Reply]  [No Email]
Wascator

10-18-2012 16:51:29
70.195.192.81



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Robert major, 10-17-2012 15:55:59  
I remember installing the pistons in this engine (Continental F-162): I did not have to drive them in or anything like that, but there was significant friction which obviously came from the rings. The oil rings are the type which use an upper and lower thin ring with an expander behind. They are designed to wear in very quickly. I checked the end gap of each individual ring in the bore where they were installed, but as I recall there is no end gap on these oil rings.
In short: I am not surprised at the amount of friction in this engine, given my experience installing the pistons.I've barred it around probably 25-30 revolutions, timing the magneto, etc. It has compression in each cylinder, and it does not have any particular tight spots. The block was bored and honed, and the crank was inspected and polished, in a professional shop long in business and of high repute. Since I can't tow-start a Lincoln welding machine, I wonder how I'll ever get it started.

[Log in to Reply]  [No Email]
Mike M

10-30-2012 13:45:48
24.140.0.120



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-18-2012 16:51:29  
I'd be concerned about the end gap on the oil rings. The expander may not be in right or the thin rings not sitting right ? I also go thru and check out the starters,alt. or gen.,water pumps & radiators on any engine job I do because the engine is going to crank harder and run hotter then when worn out.

I can't say as I have ever had trouble starting a fresh rebuilt engine. I crank them up without spark plugs or injectors to get oil pressure first too. Also use engine assy. lube on them when going together.

[Log in to Reply]  [No Email]
David G

10-18-2012 18:16:47
205.215.206.18



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-18-2012 16:51:29  
If the starter, connected normally, with a charged battery will not turn it over then something is wrong. It can take quite a bit of effort with a bar to turn over a new engine.

If you still have the pan off, make sure the rods are not binding. The rods on my 44 were not reconditioned correctly, and caused it to bind. I got them fixed and it is fine.

What did you gap the rings to?



[Log in to Reply]  [No Email]
John B.

10-16-2012 17:18:54
38.114.64.214



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
Did yo use Engine Assembly grease on all moving parts prior to installation? Did you check your ring gaps before installing them on the pistons? Ring Gap is a big item!!!!



[Log in to Reply]  [No Email]
Fixerupper

10-15-2012 17:07:35
100.42.82.164



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
All rod bearing caps put on the right way? Don't ask my why I suspect it. Jim



[Log in to Reply]  [No Email]
rrlund

10-14-2012 05:22:52
207.241.137.116



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
I don't know if I'd call it normal,but I've had to do it. Just recently in fact. I just overhauled an Oliver Super55 gas. I wouldn't even roll just towing it,I had to use the starter at the same time. After it started and ran for just a minute or two,it started right up with the starter without a problem.



[Log in to Reply]  [No Email]
El Toro

10-14-2012 03:55:36
108.3.143.30



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
Did you use a torque wrench when you tightened rod and main main bearing caps? Hal



[Log in to Reply]  [No Email]
soundguy

10-13-2012 19:28:43
173.107.113.36



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-13-2012 18:02:01  
yes.. it's a bit normal to have more drag on a new rebuilt engine than a sloppy worn out one.

did you use assy lube?

did you plastigauge it to make sure the crank and bearings are matched up and correct clearance.

ring end gap correct?

you can run it over a bit with plugs out to cut the 90-130 psi compression to help turning it over.. parallel up some bats to help.. if it is 6v jump it with 12v.

run it with plugs out till oil pressure comes up.. then put em in and jump with paralleled bats / 12v bat on the 6v starter, if it is 6.. etc..

[Log in to Reply]  [No Email]
Wascator

10-14-2012 10:55:16
70.195.201.65



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to soundguy, 10-13-2012 19:28:43  
Yes, all measurements were made and are correct. A well-qualiifed shop did the crank, which needed a polish only; installed bearings, cam and new bearings. Engine turned very freely until the pistons and rings were installed. Everything torqued correctly. Assembly lube, etc.
It's just amazing how much drag rings create until they wear in a little.



[Log in to Reply]  [No Email]
old

10-14-2012 12:26:53
209.86.226.19



Report to Moderator
 Re: Newly Overhauled Engine Somewhat Tight in reply to Wascator, 10-14-2012 10:55:16  
It is a something that adds up. The bearing have some drag then you add the cam and the pistons and rings etc it all adds up to a point that yes it can be hard to spin one over. As long as all parts including the rings are lubed like they should be all will be ok as long as the oil pressure comes up also



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

Hop to:

TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  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. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 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