Gear box shimming/bearing replacement

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
alanscottj
registered user
Posts: 960
Joined: Fri May 23, 2014 6:54 pm
Main scooter: Lambretta GP SS250 Casa
Contact:

Strummer10 wrote:Alan, I suspect it makes no difference so long as the hub nut is correctly 'Torqued' to the values in 'Sticky's Book' as in reality the layshaft is kept nicely tight and horizontal between the hub bearing and endplate. I know some people use a metal spacer instead of putting the hub on and 'torquing up' .........
Got it all back together with new bearings, new bearing track, properly shimmed, but, there is still a very slight wobble on the back wheel. So, I've ordered a brand new end plate from Beedspeed, it's the only part I've not replaced new on this engine.
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox 😎👍
rosscla
registered user
Posts: 4823
Joined: Tue Oct 25, 2011 9:50 pm
Main scooter: Lambretta
Location: Lanarkshire
Contact:

Be careful if you're replacing the endplate, depends on the casings but check the xmas tree bearing in the plate and the casing are concentric.

Indian casings always come as a matched pair and should be kept together as they're allegedly machined together.

I've never had this problem with Italian endplates in Italian casings but others have.
"Our dilemma is that we hate change and love it at the same time; what we really want is for things to remain the same but get better."
User avatar
HxPaul
registered user
Posts: 1110
Joined: Fri Dec 06, 2013 1:58 pm
Main scooter: lambretta Li 150
Location: Halifax,Yorkshire
Contact:

Before you fit a new layshaft just check the wheel or the tyre,especialy if your using split rims.The tyres or the rims could easily be slightly out of true giving you those symptoms.
User avatar
wack 63
registered user
Posts: 1254
Joined: Fri Nov 27, 2009 9:33 pm
Main scooter: '71 GP TS1
Location: Lincs
Contact:

I'd be more inclined to change the layshaft to get rid of the play as it's probably slightly worn. If your casing is off, rock the wheel and you may see the play in the endplate bush.
alanscottj
registered user
Posts: 960
Joined: Fri May 23, 2014 6:54 pm
Main scooter: Lambretta GP SS250 Casa
Contact:

wack 63 wrote:I'd be more inclined to change the layshaft to get rid of the play as it's probably slightly worn. If your casing is off, rock the wheel and you may see the play in the endplate bush.
Ive just been having a look at some. The Casa one looks ok for £60.
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox 😎👍
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 5 guests