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LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 9:37 am
by alan.barker
IMG_7626.JPG and

I've just finished refreshing the Gearbox on my Sprint.
On the Layshaft it had yellow paint and wondered why.
Could someone suggest why
Alan

Re: LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 4:20 pm
by gjz30075
I'm only guessing but it could be easy identification for production workers to determine
into which gearbox it gets installed, ie, wide, semi close, close.

Re: LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 5:18 pm
by promotor
alan.barker wrote:
IMG_7626.JPG

I've just finished refreshing the Gearbox on my Sprint.
On the Layshaft it had yellow paint and wondered why.
Could someone suggest why
Alan


Is it definitely semi-close ratios? I've just looked through some photos of semi-close gearboxes I've overhauled and I can only find one cluster with paint on and that is orange.

Before I went looking my first thought was that yellow may be for wide-ratio, although I'm not 100% sure on that...

Re: LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 5:27 pm
by alan.barker
As far as i know i'm the first to refresh the Box. Maybe i should get my marker out and count the turns in first Gear.
Is it one turn output and count input turns.
Sorry i'm a gearbox virgin.
Alan

Re: LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 5:44 pm
by promotor
alan.barker wrote:As far as i know i'm the first to refresh the Box. Maybe i should get my marker out and count the turns in first Gear.
Is it one turn output and count input turns.
Sorry i'm a gearbox virgin.
Alan


Yes select first gear and turn input shaft three times to get one on the output with semi-close. Wide ratio is 3.5 turns of input shaft to 1 turn of the output in 1st.
I have to say the gears look to be semi-close looking at the size of the gears but photos can be deceptive!

Re: LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 5:51 pm
by alan.barker
Cheers,
Just counted in first and i have 3 turns. So happy it semi-close ratio.
Many thanks you had me worried. I think i'll just take a glass of cabernet sauvignon to celebrate.
Tomorrow Box goes back into "Little Lo"
Alan

Re: LAYSHAFT PAINT

PostPosted: Mon Dec 05, 2022 5:54 pm
by promotor
alan.barker wrote:Cheers,
Just counted in first and i have 3 turns. So happy it semi-close ratio.
Many thanks you had me worried. I think i'll just take a glass of cabernet sauvignon to celebrate.
Tomorrow Box goes back into "Little Lo"
Alan


Glad to know you've got the right gearset. I'll definitely be looking for paint marks on gears on the next gearboxes I strip!