Antique Tractors
[Home] - [HELP] - [Forums] - [Articles] - [Photo Gallery] - [Groups] - [Chat] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] - [Tools]

Go Back   SmokStak > SmokStak® Old Iron and Tractor Community > Antique Tractors - Old Iron Lugs, Cleats and Tracks
Forgot Password? Join Us!

Notices

Antique Tractors - Old Iron Lugs, Cleats and Tracks Photos and information about antique steel wheeled farm tractors. This is where to find the heaviest of Old Iron.

Antique Tractors - Old Iron Lugs, Cleats and Tracks

Favorite way to free stuck valves?


this thread has 13 replies and has been viewed 7415 times

Reply
 
Thread Tools Display Modes
  #1  
Old 12-08-2009, 07:47 PM
A Martinson A Martinson is offline
Registered-III
 
Join Date: Sep 2005
Location: Dalton, Minnesota USA
Posts: 568
Likes: 933
Liked 2,020 Times in 322 Posts
Images: 39
Default Favorite way to free stuck valves?

On the 16-30 TC all of the exhaust valves are stuck, what is everyone's favorite method? For now, I'm just going with patience and lots of penetrating oil.
Reply With Quote
Sponsored Links
  #2  
Old 12-08-2009, 07:57 PM
ajs2744TC ajs2744TC is offline
Registered-II
 
Join Date: Oct 2009
Location: Wilton/Bemidji, MN u.s.a.
Posts: 258
Likes: 289
Liked 228 Times in 101 Posts
Default Re: Favorite way to free stuck valves?

Penetrating oil and a brass tip hammer, If that dont work...DYNAMITE !!!
Reply With Quote
The Following User Likes This Post:
  #3  
Old 12-08-2009, 08:29 PM
Eric M. Eric M. is offline
Registered-III
 
Join Date: Jul 2006
Location: Southern CA, USA
Posts: 2,113
Likes: 1,028
Liked 1,096 Times in 477 Posts
Default Re: Favorite way to free stuck valves?

PB Blaster, Kroil, and a brass hammer. Just keep tapping away. They should come loose eventually. I'm in the process of working on a Bates 35 tractor that had water standing in one cylinder and all 4 exhaust valves were stuck. In less than a week, all 4 were loose.
Reply With Quote
The Following 3 Users Like This Post:
  #4  
Old 12-08-2009, 08:40 PM
A Martinson A Martinson is offline
Registered-III
 
Join Date: Sep 2005
Location: Dalton, Minnesota USA
Posts: 568
Likes: 933
Liked 2,020 Times in 322 Posts
Images: 39
Default Re: Favorite way to free stuck valves?

Also note, this is a flathead engine. Where should I tap at the valves?
Reply With Quote
  #5  
Old 12-08-2009, 08:54 PM
Craig A's Avatar
Craig A Craig A is offline
Moderator
 
Join Date: Nov 2004
Location: Wisconsin USA
Posts: 12,945
Likes: 11,218
Liked 14,858 Times in 4,551 Posts
Images: 18
Default Re: Favorite way to free stuck valves?

I quit using straight penetrating oil a long time ago as it evaporates and any gains are lost.
I switched to a, roughly, half and half mix of penetrating oil and brake fluid.
Don't tap on the valve heads directly. Use a piece of brass to transfer the hammer taps.

Patience is an admirable way to attack that problem......
Reply With Quote
  #6  
Old 12-08-2009, 09:54 PM
Rick Schmitz Rick Schmitz is offline
Registered-III
 
Join Date: Mar 2008
Location: Looma, Alberta, Canada
Posts: 419
Likes: 488
Liked 948 Times in 224 Posts
Default Re: Favorite way to free stuck valves?

I've had success heating them up a little with a torch and then squirting on some kroil.
Reply With Quote
The Following User Likes This Post:
  #7  
Old 12-08-2009, 11:50 PM
G Willikers G Willikers is offline
Subscriber
 
Join Date: Mar 2006
Location: Canada
Posts: 6,675
Likes: 5,879
Liked 13,984 Times in 3,276 Posts
Default Re: Favorite way to free stuck valves?

Mr Martinson!
As others have said - PATIENCE!
It took them a long time to stick up - you don't need to get them loose the first day. Some tender love taps and lots of soaking. They'll come out.
G.
Reply With Quote
  #8  
Old 12-09-2009, 12:35 AM
turbo turbo is offline
Registered-III
 
Join Date: Dec 2006
Location: Heron Lake Minnesota USA
Posts: 435
Likes: 245
Liked 300 Times in 129 Posts
Default Re: Favorite way to free stuck valves?

Look at it this way, The tolerance between the valve and the guide was small enough to stick with rust. The rest of the engine must not be too worn out!! I have one engine that I think could soak in calcium cloride for ten years and still be able to turn over
Reply With Quote
  #9  
Old 12-10-2009, 08:05 PM
ajs2744TC ajs2744TC is offline
Registered-II
 
Join Date: Oct 2009
Location: Wilton/Bemidji, MN u.s.a.
Posts: 258
Likes: 289
Liked 228 Times in 101 Posts
Default Re: Favorite way to free stuck valves?

There is a tricky and a questionable way. Use a very light acid and a small brush to apply. Wrap a rag around each valve stem and watch carefully. Be sure to make sure valve guide doesnt react to this. Muriatic might be a tad strong but Hydrochloric is weaker or try citric and just be careful. Note: This should be a last step and read label carefully and dilute. DO NOT drink it in celebration!!!
Reply With Quote
  #10  
Old 12-11-2009, 05:48 AM
Richard Sturdy Richard Sturdy is offline
Registered-III
 
Join Date: Nov 2006
Location: Galphay, North Yorkshire, UK
Posts: 1,261
Likes: 2,627
Liked 1,954 Times in 690 Posts
Default Re: Favorite way to free stuck valves?

Actually, muriatic acid is just an old-fashioned name for hydrochloric acid (HCl)

Tricky Dickie
Reply With Quote
  #11  
Old 12-11-2009, 12:22 PM
Robert Holt Robert Holt is offline
Registered-III
 
Join Date: Nov 2005
Location: Hinckley, Leicestershire, England
Posts: 280
Likes: 332
Liked 1,349 Times in 177 Posts
Default Re: Favorite way to free stuck valves?

Hi all, just take the head off and do the job correctly you can then check and clean the vales up, re cut the seats and reface the head ........after all the waiting for them to free off you will have done the job and enjoy driving your old girl to the pub ..........R
Reply With Quote
The Following User Likes This Post:
  #12  
Old 12-11-2009, 12:23 PM
Rene Elliott Rene Elliott is offline
Registered-III
 
Join Date: May 2008
Location: Morris, NY USA
Posts: 613
Likes: 281
Liked 270 Times in 102 Posts
Default Re: Favorite way to free stuck valves?

I've used "naval jelly" which I understand is just a acid, (possibly hydrocloric?) on the YXC3 Hercules in my Linn, which had a lot of water in the cylinders, steel block aluminum pistons, and embarassed to admit after 20 years of having the heads off and covered with a tarp, the cylinders are mostly cleaned out, but a few of the valves still tight to the block but honestly have not tried tapping with a hammer yet, it looks 100% better than when I started. Maybe while the bees are quiet I can get in and mess with it. (Then there are the snapped off cylinder head studs to deal with....). I tried using Coca-cola once to unseize an old V8 we had then learned afterwards that can glue things better than antifreeze if you don't flush out EVERYTHING. Somethings you believe as a teenager (30 years ago) you realize later were pretty stupid but someone somewhere had a good laugh over it.
Attached Thumbnails
YXC3head2009.jpg  
Reply With Quote
  #13  
Old 12-24-2009, 07:01 PM
markw1954 markw1954 is offline
Registered-I
 
Join Date: Aug 2008
Location: East Windsor,NJ USA
Posts: 12
Likes: 0
Liked 4 Times in 3 Posts
Default Re: Favorite way to free stuck valves?

Muriatic acid is a diluted form of Hydrochloric acid. Hydrochloric attacks metal so much it is hauled in rubber lined vessels! Naval Jelly is based on Phosphoric acid which is alot milder, read the label on your soda pop can, it is in there!
Reply With Quote
  #14  
Old 12-24-2009, 08:49 PM
Temple2426 Temple2426 is offline
Registered-III
 
Join Date: Jul 2009
Location: Braxton Ms USA
Posts: 314
Likes: 455
Liked 306 Times in 88 Posts
Images: 7
Default Re: Favorite way to free stuck valves?

HAMMER!!!
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
12 Steps to free a stuck piston B Kedrowski Antique Gas Engine Discussion 37 08-30-2014 05:02 PM
How do you free a stuck 72 twin Matt McGivney Maytag Engine Collectibles 13 07-06-2008 12:09 AM
stuck valves 5hp fuller&johnson Jim Scott Antique Gas Engine Discussion 9 04-09-2005 11:37 PM
STUCK VALVES ihorse Antique Engine Archives 9 10-18-2004 03:38 PM
Stuck Valves JD Model E Stevie Antique Engine Archives 1 06-13-2003 11:28 PM


All times are GMT -4. The time now is 12:20 PM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark
A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2014 by Harry Matthews
P.O. Box 5612 - Sarasota, FL 34277