www.stationaryengineforum.net
Please log in , the forum is open to guests who are now able to view every section, feel free to become a member , you will then be able to post and reply to topics.

Lister H3 pump

View previous topic View next topic Go down

Lister H3 pump

Post by steve66 on Sun Nov 29 2009, 17:57

Hi All,
Does anyone know how to undo the valve caps on a Lister H3 pump?
If i have to drill them out, can i get new ones?
They are very tight as some time in the past someone has had a go at the end plug and made a mess right mess of it.
the small drive gears are very worn, the teeth are almost pointed, the piston is very rusted and the crosshead had to be cut
to get the con rods off.
cheers
steve

steve66
Born to be wild
Born to be wild

Posts : 22
Join date : 2009-09-18
Location : saltash cornwall

Back to top Go down

Re: Lister H3 pump

Post by Foden on Sun Nov 29 2009, 18:50

Is that the caps with the internal square Steve? If so I would get some square section bar or tube that is a tight fit and weld it to make a T shaped key, that should shift them though you may have to warm the cast iron of the pump. Be careful as the threads can strip on the brass caps when you unscrew them, replacements would be very hard to find. I have done an H1 and the caps came off ok.

Pete

_________________
Too much to do, and so little time!!

Foden
Life Member
Life Member

Posts : 1123
Join date : 2009-11-04
Age : 65
Location : North Midlands

Back to top Go down

Lister H3 pump

Post by steve66 on Sun Nov 29 2009, 19:30

Hi Foden,
It is the one with the internal squares. i have a 1 inch square drive tee bar with about 4 feet of pipe on it,
not a hint of movement, i have warmed it up, still nothing.
cheers
steve

steve66
Born to be wild
Born to be wild

Posts : 22
Join date : 2009-09-18
Location : saltash cornwall

Back to top Go down

Re: Lister H3 pump

Post by Foden on Sun Nov 29 2009, 19:39

Seems like you have a tough one there Steve! I can only suggest more heat, the H1 that I did I had cherry red BUT then the cap may move but leave the threads behind, thus ruining the cap. Does the cap HAVE to come off, or are you just checking the rubber valves? Leave well alone if possible.

Pete.

_________________
Too much to do, and so little time!!

Foden
Life Member
Life Member

Posts : 1123
Join date : 2009-11-04
Age : 65
Location : North Midlands

Back to top Go down

we may have something at work suitable for those squares

Post by RAB on Sun Nov 29 2009, 19:46

that with an industrial breaker bar mite do summit, your quite local arnt you, ill see if i can sort something, its the same caps as on a lister a and b head i think

RAB
Admin

Posts : 4911
Join date : 2009-07-21
Age : 46
Location : Carlisle

http://www.stationaryengineforum.net

Back to top Go down

Lister H3 pump

Post by steve66 on Sun Nov 29 2009, 20:53

https://i97.servimg.com/u/f97/14/37/65/90/61712.jpg
this is the pump when i got it.
https://i97.servimg.com/u/f97/14/37/65/90/69214.jpg
the end cap
https://i97.servimg.com/u/f97/14/37/65/90/69710.jpg
one of the worn gears
https://i97.servimg.com/u/f97/14/37/65/90/69110.jpg

steve66
Born to be wild
Born to be wild

Posts : 22
Join date : 2009-09-18
Location : saltash cornwall

Back to top Go down

Re: Lister H3 pump

Post by Foden on Sun Nov 29 2009, 21:02

It's had a good bit of looking at Steve!! And I was concerned about you damaging the caps. Smile

Pete.

_________________
Too much to do, and so little time!!

Foden
Life Member
Life Member

Posts : 1123
Join date : 2009-11-04
Age : 65
Location : North Midlands

Back to top Go down

Re: Lister H3 pump

Post by JONESEY on Sun Nov 29 2009, 22:06

Try useing an impact wrench if you were closer you could borrow mine, they have the juder to move them
Chris

JONESEY
Admin

Posts : 2850
Join date : 2009-07-21
Age : 54
Location : Verwood, Dorset

Back to top Go down

Re: Lister H3 pump

Post by stationary stu on Sun Nov 29 2009, 22:45

Try a plant hire company they'll have one they maybe could let you use.

Stu.

stationary stu
Life Member
Life Member

Posts : 8962
Join date : 2009-07-21
Age : 58
Location : Stanley, Co. Durham.

Back to top Go down

Re: Lister H3 pump

Post by Lister John on Sun Nov 29 2009, 22:53

Hi Steve

After the trouble ive had recently with steel nuts on a brass bar I would say dont be surprised if it breaks!

Sounds harsh but I had a garage try and remove steel nuts of the climax pump so as to fit new piston cups, and as a result I now need a new brass par turned up for me.

Keep us posted though Smile

Lister John
A credit to the forum
A credit to the forum

Posts : 267
Join date : 2009-08-13
Location : Cornwall

Back to top Go down

Lister H3 pump

Post by steve66 on Sat Dec 19 2009, 11:52

Hi All,
Thanks for all your help and advice, i have now removed the caps with only
minor damage. it is easy with a big vice, 1" square drive T bar, 5 feet of gas pipe and
a lot of slow heating, only took about 1/2 hour.
cheers
steve

steve66
Born to be wild
Born to be wild

Posts : 22
Join date : 2009-09-18
Location : saltash cornwall

Back to top Go down

glad you managed it ok

Post by RAB on Sat Dec 19 2009, 13:29

ive had things like that , before I had Graham Martian heat the flywheel on my old D for 2 hours, still didnt come off Very Happy

RAB
Admin

Posts : 4911
Join date : 2009-07-21
Age : 46
Location : Carlisle

http://www.stationaryengineforum.net

Back to top Go down

Re: Lister H3 pump

Post by Sponsored content Today at 18:00


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum