Ailsa Craig gearbox

[glynnbarry123]

Hi I have an alisa craig engine and box in my boat clutches gone in gear box any body got ant or anyone knows we're I can get some

[Tracy D'arth]

Is this a Parson's gearbox?   Need more details and pix if you can.

[glynnbarry123]

This is picture of box I have got

[Tony Brooks]

Just to check, have you tried adjusting it?

 

If you have I can't help you.

[glynnbarry123]

Yeah I got box out clutched burned out

[Tony Brooks]

5 minutes ago, glynnbarry123 said:

Yeah I got box out clutched burned out

If that is your car I think you stand a better chance than many to find replacements that are supposed to be in something else.

[glynnbarry123]

Ye that's my 1948 mg ya

[Tony Brooks]

More thoughts. Its hard to get any idea of the size from your image, but have a  search for Watermota or Wortham-Blake gearbox parts. They may have used a multi-plate ahead clutch and if you are very lucky they will be bronze and perhaps near enough dimension wise to fettle to fit. Try Sheridan Marine at Moulsford and Chertsey Meads marine for a start. I suspect it will have to be second hand parts. There were a fair number of gearboxes with mluti-plate ahead clutches made pre about 1960 but finding parts is the problem, as you have found.

[Bee]

I think it is an actual Ailsa Craig gearbox.  I would guess that new plates will be the answer and I don't know where you might find them off anybody's shelf.  its probably not a huge engineering challenge to get some made but how you dismantle the box is something else. I made new bushes for the planetary gears on one of them and how on earth you got to the clutches was a mystery.

[Tony Brooks]

11 minutes ago, Bee said:

I think it is an actual Ailsa Craig gearbox.  I would guess that new plates will be the answer and I don't know where you might find them off anybody's shelf.  its probably not a huge engineering challenge to get some made but how you dismantle the box is something else. I made new bushes for the planetary gears on one of them and how on earth you got to the clutches was a mystery.

 

I am sure it's an Alsa box and the OP seems to have got the plates out because he knows they are burned out. I was trying to think of a more common box where the plates might be persuaded to do the job. Don't know if @RLWP has the wherewithal to make new plates. I think they could be time-consuming because of accurately cutting the splines.

[BEngo]

If you can accurately draw the plates in CAD, to a .dwg or .dxf file it should be practicable  to get them laser or water jet cut.  Try Model Engineers Laser.  They have done jobs for me and I found them helpful and quick to respond.

 

Do you know what the plate material is?

 

N

[Tony Brooks]

29 minutes ago, BEngo said:

If you can accurately draw the plates in CAD, to a .dwg or .dxf file it should be practicable  to get them laser or water jet cut.  Try Model Engineers Laser.  They have done jobs for me and I found them helpful and quick to respond.

 

Do you know what the plate material is?

 

N

 

Good to know, files in the back of my  brain for future use. Thanks

[BEngo]

I dare say that these days it would even  be possible to have them 3D printed.  You would need to draw a 3D CAD model for that as well as find a suitable printer and feedstock.

 

N

[BEngo]

Also worth a look:

https://www.industrialclutch.com/product-range/friction-materials/multi-disc-friction-plates.html  They have stock bronze and steel plates. 

N

[Tracy D'arth]

You may be able to get the linings replaced.   Could these be anything like motorbike clutch plates? It very likely that they are used in something else.

[glynnbarry123]

I sent the clutches to a place in Burscough hope they can sort them thanks for all replys

[David Schweizer]

Try contacting Jonathon Hewitt (Jonno) at Union Canal Carriers in Braunston. He regularly rebuilds Ailsa Craig engines and may have spares, or know where you can get them.

 

 

Edited July 11, 2021 by David Schweizer

[glynnbarry123]

Thanks

On 11/07/2021 at 10:01, Bee said:

I think it is an actual Ailsa Craig gearbox.  I would guess that new plates will be the answer and I don't know where you might find them off anybody's shelf.  its probably not a huge engineering challenge to get some made but how you dismantle the box is something else. I made new bushes for the planetary gears on one of them and how on earth you got to the clutches was a mystery.

I got clutches out thanks for help