Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum
:

Stuck valves

Welcome Guest, Log in or Register
Author 
Dave

03-29-2002 01:14:41




Report to Moderator

Finally got around to working on my F-20 yesterday.When I got it home last week I noticed engine turned hard so I divided up a qt. of ATF down the sparkplug holes.Turns over real easy now!Too easy it seems. Pulled valve cover to confirm what I expected.All the ex. valves were stuck open.Slathered up everything with Blaster to soak,and every thing else on tractor too.I'm going to keep soaking the valve stems for a couple of days.Think I'll pull off rocker shaft assy.s and with my rubber mallet maybe they might come free.My big plan is to see it run with out tearing it down first.Maybe I'll get really lucky and it will have good oil pressure,compression and won't smoke or leak excessive amounts of oil.Would sure save time&$$$.But I'll go through motor if I have to.Anybody else have same experience?

[Log in to Reply]   [No Email]
Dave

03-29-2002 17:42:08




Report to Moderator
 Re: Stuck valves in reply to Dave, 03-29-2002 01:14:41  
Thanks for all the input guys! I just came in from shop,and the valves are un-stuck now. I pulled the rocker shafts and with a bit of conservitave tapping they snapped right shut.So I dosed em up with more PB Blaster {great stuff} to soak some more.I see a problem right away though. One broken spring and two more that look stacked or out of shape somehow.Valves did seat so next move is to inject air into each cylinder and see if they leak.I know about tapping on end of stem to dislodge a piece of crud or carbon that got on the seat.So if I get really lucky again and there is no great amounts of air whistling through this thing I will need some new springs.Probably ought to borrow a spring tester and check even the good looking ones.Could just put a whole new set and not worry about it.Have ordered a service man. but its not here yet.Haven't done any research yet-where would be a good place to get new or even good-used springs? IHC dealer,local NAPA,or get in touch with one of the parts suppliers listed on this site? The bad springs explain why my Uncle told me that the last time he had it running,it was limping and down on power.

[Log in to Reply]  [No Email]
Salvage Man

03-29-2002 07:08:52




Report to Moderator
 Re: Stuck valves in reply to Dave, 03-29-2002 01:14:41  
I have been working with my F20 for 3 months spraying and tapping trying to get my exhaust valves unstuck. I finally pulled the head and the guides are junk. The is an old boy here who has run F20 since they were new and he looked at it and told me " You just as well pull the head as your guides are bad".



[Log in to Reply]  [No Email]
F-Dean

03-29-2002 06:05:23




Report to Moderator
 Re: Stuck valves in reply to Dave, 03-29-2002 01:14:41  
Dave, I would suggest removing the plugs and turn the engine with another tractor and a "Twisted Belt" while lubricating the exhaust valves. Tapping on the stuck valves should allow you to get them working. I would also suggest taking the lids off the block handholes to verify that each splash trough is getting oil - you can burn out a rod if the distributer in the pan is clogged.



[Log in to Reply]  [No Email]
Larry W.

03-29-2002 06:05:12




Report to Moderator
 Re: Stuck valves in reply to Dave, 03-29-2002 01:14:41  
Dave, If you are lucky, and sounds like you are, the valves just got stuck when you turned the engine over by hand. If so, they should loosen up like the engine did. If however, they stopped using the tractor because the engine got hot, and the exhaust valves stuck, then you know the game. I agree, you are on the right track, and it may just be fine. These old engines can take a lot of abuse, and neglect, and keep on ticking. Good luck.

[Log in to Reply]  [No Email]
Michael Soldan

03-29-2002 04:45:51




Report to Moderator
 Re: Stuck valves in reply to Dave, 03-29-2002 01:14:41  
Dave, I would agree with what you are doing, ATF has been widely used for valve sticking. "RISOLONE" is a product I have used on a sticking valve but that was on a running engine...an oil additive that is to lube valves, even have put some oil in the gas (Sucking out of a gallon can) to give everything some lube. A rubber hammer might just jar them loose. Are the intakes moving OK? If you do have to pull the head it won't be that bad a job but you will have the expense of a gasket set. It is amazing what lubricants and penetrating oils can do..I hope it works out easiest for you and good luck from Mike in Exeter Ontario

[Log in to Reply]  [No Email]
steve c

03-29-2002 04:37:25




Report to Moderator
 Re: Stuck valves in reply to Dave, 03-29-2002 01:14:41  
yes sir, The best is to let it soak and use tranny fluid too. I had a 37 with the same problem. I pulled the tractor around in gear to work up oil pressure in motor before I started it. this one is a hand start. I timed the magneto and it came to live. SteveC



[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


Copyright © 1997-2023 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