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.

Magneto sprocket removal.

View previous topic View next topic Go down

Magneto sprocket removal.

Post by joegrgraham on Wed May 29 2013, 19:37

Hi all,

Any tips for removing the Magneto drive sprocket from the crank shaft of a Lister Junior?
Is it a straight key or a taper? Is it just a case of brute force with a puller or are there any subtler ways?

joegrgraham
Born to be wild
Born to be wild

Posts : 40
Join date : 2013-05-15
Age : 36
Location : Malmesbury, Witshire

Back to top Go down

Re: Magneto sprocket removal.

Post by matt86 on Wed May 29 2013, 20:19

its on a taper and normally not too tight . sometimes it been known just to unwind nut a few turns and surport the gear and a sharp tap on the nut shocks it off . notice a tap not a clout Laughing

matt

matt86
Admin

Posts : 5581
Join date : 2011-03-29
Age : 30
Location : swindon/ faringdon

Back to top Go down

Re: Magneto sprocket removal.

Post by Villiers on Wed May 29 2013, 20:23

Crank shaft Matt.

This is held on with a parallel key and if my memory serves me right it is also the gear for the camshaft on the other end, it should just pull off with gentle use of a puller. Clean the shaft up well, lube it up and bingo, off it comes.

Villiers
Life Member
Life Member

Posts : 975
Join date : 2010-01-02
Age : 48
Location : Just outside Diss

http://www.rcoleplumbingservices.co.uk/

Back to top Go down

Re: Magneto sprocket removal.

Post by joegrgraham on Wed May 29 2013, 20:45

Thanks Villiers,
yes, you memory is correct, there is a cam gear on the back.
I pulled it a few mm, then it went tight, so I stopped cause I didn't want to wind it too tight against a taper key.
As you say it's a straight key, I'll clean the keyway a bit more, give it a soak and try again.

_________________
If you think you're having a bad day, just remember, somewhere in the world a fat kid has just dropped his ice-cream.

1926 Lister B (in bits).

joegrgraham
Born to be wild
Born to be wild

Posts : 40
Join date : 2013-05-15
Age : 36
Location : Malmesbury, Witshire

Back to top Go down

Re: Magneto sprocket removal.

Post by joegrgraham on Thu May 30 2013, 19:30

Had another go at it tonight, followed what villiers suggested and got the swine! Smile

Thanks Guys.

_________________
If you think you're having a bad day, just remember, somewhere in the world a fat kid has just dropped his ice-cream.

1926 Lister B (in bits).

joegrgraham
Born to be wild
Born to be wild

Posts : 40
Join date : 2013-05-15
Age : 36
Location : Malmesbury, Witshire

Back to top Go down

Re: Magneto sprocket removal.

Post by matt86 on Thu May 30 2013, 21:08

after when i had the flywheel off mine just pulled off easy enough i tapped it off with a drift ... But then if stuck its a different ball game .

matt

matt86
Admin

Posts : 5581
Join date : 2011-03-29
Age : 30
Location : swindon/ faringdon

Back to top Go down

Re: Magneto sprocket removal.

Post by stationary stu on Fri May 31 2013, 10:48

Great news Joe, keep us updated on your restoration please.

Stu.

_________________
Engines are just like Pringles .... one is never enough.  Very Happy                                        I used to love tractors all I would ever think/talk about. Then one day out of the blue I went on to statinary engines, So you could say I'm an extractor fan.

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: Magneto sprocket removal.

Post by Sponsored content Today at 18:37


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