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Fitting layshaft spring and ball bearings.

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Fitting layshaft spring and ball bearings.

Postby mark1 » Wed Sep 17, 2014 9:37 pm

I've just fitted mine tonight, I've done it before and it's a right bloody mither. The best way I've come up with is to fit a toolbox door grommet into the layshaft groove (where the ball bearing fits) and put the spring and other ball bearing in the other end then to press the free ball bearing in with a small flat bladed screwdriver, then to finally push the sliding dog up.
Has anyone got a better way ?
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Re: Fitting layshaft spring and ball bearings.

Postby MK Monty » Wed Sep 17, 2014 10:07 pm

Do it inside a clear plastic bag. saves a trip to the shop for more balls :mrgreen:
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Re: Fitting layshaft spring and ball bearings.

Postby coaster » Wed Sep 17, 2014 10:12 pm

Get a hose clip big enough to fit round the layshaft, put the spring in place and slide the hose clip over it. The clip needs to be just tight enough to be a tight slidding fit on the shaft. Now you will find it easy to push the balls into the ends of the spring. Then push the sliding dog up until it is contacting the clip and then use a couple of screw drivers to lever the balls in against the spring whilst you press on the balls with the screw drivers. It still requires a bit of dexterity but the hose clip keeps the balls contained and gives you something to lever against with the screw driver. Doing it all inside a carrier bag is an idea to, it saves having to search the dark recesses of the shed when they fly out :oops:

Anyway, take a look at this chaps attempts and you won't feel so bad. He has over 20 video's on Utube and is riddled with bad engineering practice and ignorance....but the first part of this one is hilarious
https://www.youtube.com/watch?v=NkG6Z-hXln0
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Re: Fitting layshaft spring and ball bearings.

Postby Dimitrios_231 » Wed Sep 17, 2014 10:16 pm

It is an easy task if you have two sliding dogs.
Press them against each other and then select a gear.
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Re: Fitting layshaft spring and ball bearings.

Postby gaz_powell » Wed Sep 17, 2014 10:20 pm

He reminds me of Kenny Everetts character Reg Prescott - hapless DIYer

Might help if he took those big gloves off

Nice leather waste coat aswell

just watched number 5 - after he put the drive plate in the wrong way round with the seal in the wrong way (which then makes the seal the right way round !!!)
He like his gasket seal on the mag housing
Last edited by gaz_powell on Wed Sep 17, 2014 10:30 pm, edited 1 time in total.
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Re: Fitting layshaft spring and ball bearings.

Postby Nigel. S » Wed Sep 17, 2014 10:26 pm

My method:

1. Ignore all advice and stuff you've read and muddle on in your own way. It can't be that difficult, surely?

2. Spend an hour crawling around on the garage floor looking for lost balls.

3. As per Monty's suggestion.
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Re: Fitting layshaft spring and ball bearings.

Postby Dimitrios_231 » Wed Sep 17, 2014 10:29 pm

gaz_powell wrote:He reminds me of Kenny Everetts character Reg Prescott - hapless DIYer


:lol: :lol: :lol:

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Re: Fitting layshaft spring and ball bearings.

Postby Scooterlam » Thu Sep 18, 2014 1:09 am

Like your style Dimitrios123
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Re: Fitting layshaft spring and ball bearings.

Postby Dimitrios_231 » Thu Sep 18, 2014 7:53 am

This is the concept.
Once mastered :) it takes half a minute to do the job.


Image

Image

Image

Image

Image
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Re: Fitting layshaft spring and ball bearings.

Postby grandpa » Thu Sep 18, 2014 1:29 pm

Hi Chaps
you can use 2 screw driver bits to press in the steel balls.The bits are a perfect fit into the slots then slide the dog over
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Re: Fitting layshaft spring and ball bearings.

Postby JETEX » Thu Sep 18, 2014 7:45 pm

I use a pair of old kitchen tongs ( ground down to fit the slots on the shaft ). Fit the balls and spring, squeeze with the tongs and then slide the sliding dog on. As said though, it's better if you do this inside a large clear plastic bag.
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Re: Fitting layshaft spring and ball bearings.

Postby rossclark » Sun Sep 21, 2014 12:24 am

Always done it with two screwdrivers.
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Re: Fitting layshaft spring and ball bearings.

Postby Captain Pugwash » Sun Sep 21, 2014 8:00 am

I seem to have the knack of sliding the selector over the spring and ball bearings using my thumb and index finger to push the bearings down while sliding the selector into place.
I like Domitrios's fix, next time I replace a selector I will try that as it looks to make the job easier 8-)
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Re: Fitting layshaft spring and ball bearings.

Postby Dimitrios_231 » Sun Sep 21, 2014 10:22 am

I made a short video this morning,two sliding dogs work perfect for me.
Brand new spring was used,even with uprated springs,it works fine.

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Re: Fitting layshaft spring and ball bearings.

Postby gaz_powell » Sun Sep 21, 2014 10:56 am

nice demo there Dimitrios but not as entertaining as our friend on youtube!!
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Re: Fitting layshaft spring and ball bearings.

Postby bookertmgs1 » Mon Feb 19, 2018 8:36 pm

Quick one to say thanks for posting this up - appreciate its an old post, but struggled for an hour before I searched on here.

Took 5 mins after watching the video.

Hopefully someone else hasn’t seen and will get some benefit
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Re: Fitting layshaft spring and ball bearings.

Postby Raveydavey » Tue Feb 20, 2018 4:07 pm

I've always used two allen keys in the grooves with a cable tie to hold them in place.
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