UK Stationary Engine Forum
 

Go Back   UK Stationary Engine Forum > Main Engine Section > The Workshop > Tricks of the Trade

Reply
 
Thread Tools Display Modes
Old 27-01-12, 12:13 AM   #1
zakyboi
Senior Member
 
zakyboi's Avatar
 
Join Date: Oct 2010
Location: Orton Longueville, Peterborough
Posts: 858
Default freeing seized valves

hello chaps/chappesses,

restoring my d right now and the valves have decided they dont want to budge (even if everything else moves!) so, how can i free them?

thanks .
__________________
Me and my D, happy as can be!
zakyboi is offline   Reply With Quote
Old 27-01-12, 12:25 AM   #2
nickh
Forum Supporter 2013
 
nickh's Avatar
 
Join Date: Feb 2011
Location: Middx.
Posts: 12,227
Default

Penetrating oil and gentle tapping, usually go ping (if they are stuck open) with not much effort.

NHH
nickh is offline   Reply With Quote
Old 27-01-12, 10:20 AM   #3
Listermaniac
Banned
 
Join Date: Jul 2010
Posts: 466
Default

I had to free the valves on my 6cylinder ford. I got the siezed stems out of the guides by turning the head upsidedown and leaving diesel soaking in the ports for a week or more. Some tapped out easily but others were stuck fast. I removed them with two hammers. I held one lump hammer squarely on the stem end to deaden the blow and preven tdamage and then hit the back of it with a second hammer. They slowly worked their way out.
Listermaniac is offline   Reply With Quote
Old 27-01-12, 11:05 AM   #4
martinpaff
Admin Team
Forum Supporter
 
martinpaff's Avatar
 
Join Date: Mar 2007
Location: Lincoln, UK
Posts: 11,249
Default

Quote:
Originally Posted by Listermaniac View Post
I removed them with two hammers. I held one lump hammer squarely on the stem end to deaden the blow and preven tdamage and then hit the back of it with a second hammer.
NEVER, EVER, hit two hammer heads together!

The high velocity splinters from a shattered hammer head could kill you.

Protect the valve stem with something softer than the valve; a piece of alloy or brass would be ideal.

Martin.
martinpaff is offline   Reply With Quote
Old 27-01-12, 11:23 AM   #5
philip ashwin
Senior Member
 
Join Date: Feb 2011
Location: leicestershire
Posts: 269
Default

i managed to free the valves on my wolseley by using WD40 and tapping it down with a brass screw driver and hammer my one were not stuck to bad
regards
philip
__________________
1946 Lister D, 2HP Lister D, Lister 2L, Wolseley WD2, Ecllispe Root cutter, HEC air compressor, Jap 2a shearing set, Pegson & marlow pump. Goodel & Pratt buffing/grinding wheel.
philip ashwin is offline   Reply With Quote
Old 27-01-12, 06:03 PM   #6
zakyboi
Senior Member
 
zakyboi's Avatar
 
Join Date: Oct 2010
Location: Orton Longueville, Peterborough
Posts: 858
Default

mine arent too bad so a bit of wd40 and gentle tapping ought get the job done
__________________
Me and my D, happy as can be!
zakyboi is offline   Reply With Quote
Old 27-01-12, 06:30 PM   #7
Windrush
Forum Supporter 2011
 
Windrush's Avatar
 
Join Date: Apr 2008
Location: Matlock, Derbyshire.
Posts: 6,696
Default

If they are stuck fast Zak I would be inclined, on a D type, to refit the valve spring retainers into their slots as hitting on the valve stem just might distort the stem at that point, it will be the weakest part. Just a thought, that's all.

Pete.
Windrush is offline   Reply With Quote
Old 27-01-12, 06:36 PM   #8
biggusdannus
Forum Supporter 2011
 
biggusdannus's Avatar
 
Join Date: Jan 2011
Location: Looe Cornwall
Posts: 1,420
Default

Quote:
Originally Posted by martinpaff View Post
NEVER, EVER, hit two hammer heads together!

The high velocity splinters from a shattered hammer head could kill you.

Protect the valve stem with something softer than the valve; a piece of alloy or brass would be ideal.

Martin.
Modern hammers won't shatter if hit with another hammer. You might get a very small chip off the edge but nothing that could kill you!! It is considered very bad practice to hit a hammer with another hammer but is most definately NOT life threatening! Dan
__________________
Cheers Dan
biggusdannus is offline   Reply With Quote
Old 27-01-12, 06:42 PM   #9
martinpaff
Admin Team
Forum Supporter
 
martinpaff's Avatar
 
Join Date: Mar 2007
Location: Lincoln, UK
Posts: 11,249
Default

Quote:
Originally Posted by biggusdannus View Post
Modern hammers won't shatter if hit with another hammer. You might get a very small chip off the edge but nothing that could kill you!! It is considered very bad practice to hit a hammer with another hammer but is most definately NOT life threatening! Dan
Ah... You must be better informed than me - I had no idea our friend was using modern hammers! When does "modern" start?

On the whole, better to be safe then very sorry!

MP
martinpaff is offline   Reply With Quote
Old 27-01-12, 07:03 PM   #10
Rookesy
Forum Supporter
 
Join Date: Jan 2007
Location: Richmond, North Yorkshire
Posts: 310
Default

The Wasp's revenge?
Attached Images
File Type: jpg Waspz.jpg (3.7 KB, 238 views)
__________________
Regards
Mick
Rookesy is offline   Reply With Quote
Reply

Bookmarks

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

Forum Jump


All times are GMT +1. The time now is 09:07 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.