OutdoorKing Repair Forum Forums Finding and Swapping Rare Finds & Donations Scott Bonnar Model 22 Spincut

On my departure of Canberra my good friend Ty (Mr Davis) gave me a parting gift.Which as the title says was a Scott Bonnar Model 22.This poor mower was found in a scrap bin in a northern suburb of Brisbane.When we got it I had said to Ty 'I don't want anything that's not a Victa'.As time past I got into the older Scott Bonnar rotary's and Ty then realized it was one that I wanted.So naturally when he said 'I'm going to let you take that,as you are truly the Scott Bonnar rotary man.At least I know you will give it the attention it needs.'I guess he was right I did want it. So very happily I accepted.Now I do have some work in front of me to put it back to its original and restored condition,but I accept this challenge.I will update you all as this jobs process.Here it is at the moment.When I start the restore I will start a new post and keep it updated.



It does need a carby,but Ty assures me that he has one for it.





I don't know a lot about this old girl except it is the wrong colour and it was know as a spin cut.So any information on this old girl would be greatly appreciated.
Tanhks

what a great looking piece of gear ! all alloy base ? will be sweet looking restored never seen one like it before anywhere . cheers, Dave

Hi Jeffrey, what a great addition to your collection, these are a rare beast these days. You certainly have a good friend in Ty (Mr Davis).
I don't have a lot of info on the 'Spin-Cut' except for this Scott Bonnar advert from 1957....

We need a colour photo so as to confirm the original SB colour scheme, for the Model 22.
I hope Grant (willing worker) may chime in with some more info!

Thanks guys that is a start.Would love to know what the air cleaner and throttle control look like.Maybe just maybe find some the same.Yes vccomm it's an alloy base.

Jeffrey, just a thought, if you can give us some info on the engine....make, model number/serial number etc, we could do some research and find out what carby/air cleaner were used. The throttle control would be the same as most petrol Scotties of the time-frame 1950-1960, and so relatively easy to source. I have a feeling that engine may be a JAP. Am I correct?
Hoping we can shed some light on it...

PS. When are you coming to pick up your 'Magister'?

Can't find any numbers on the engine.Yes it is a JAP engine.Here is some pictures of the engine.Not sure if this will help or not.






There is some numbers cast into the cylinder they are,20362 on one side and o4 on the other.
Also found on the exhaust HB20525.Also under the fuel tank found a stamp the had DJH 1955 there. Perhaps a date stamp maybe?

I also took some pictures of the base.I have seen another spin cut,it's base seems to be different to this base.





Yes and that would be my Shar Pei,Abby she always seems to get in some pictures.

I guess another hard part to find will be the correct wheels,as I believe these wheels would be from a turner.

Hi Jeffrey, here is an interesting forum with reference to: JAP engine, how to identify it? Click HERE
You will see a post there that references the magneto model number to the model of the engine.

Once you correctly identify the model, you can download a manual free here.... HERE
Hoping this helps.

Cool thanks I will check that out.Also might just give you a ring on your mobile later.

I wonder what the actual original colour was, the person that restored it last seems to have a habit of making up his own schemes. Did you have a missing blade plate too?

Thanks Daryl I have had a look at the magneto there is only a manufactures name on it no number to match it with any model.Tried do download those manuals all to no avail.
HI Joe there was a posting from willingworker on the 17/1/12 and he had put up pictures from a spin cut that he had borrowed from someone.The whole mower was a orange colour basically the same colour as the engine is.That so far is the only reference to the right colour I have seen so far.It also had the spin cut decal on it,which is what he was trying to copy.The only thing with that one was it had a slightly different base to my one.No I haven't found a cutting disc which I think is going to be very difficult it has 3 blades and won't be easy to find.
Here are the pictures that willingworker posted up.


You can see here that the grass chute is bolted one where as on mine it is cast into the base.Also I would think that these are more likely to be the original wheels.Unlike mine which has turner wheels.

As you can see here how the cutting disc looks.Nothing that I have seen before.Different from the other Scottys I have.Don't know how hard that will be to find,but lets start the search.Once I have worked out everything I need I will put it in the wanted section.Also that must be a different base as the chute isn't bolted on,it looks more like my base.

going on the part numbers of the cylinder and exhaust the JAP engine is either a 'M'type one, or a 'CM'type two. Both engines have a bore of 46mm and stroke of 48mm, a cc of 79.7.they both have a Bletchley-type AB-1 carby.The M type has a wico-
I.1259 magneto,and the CM has a wico- FW.1269 magneto. a photo of the coil set up will tell the difference if you need it. regards, john

Thanks for that I will show you the ignition,it may take a while though as I did try to take the flywheel off today but it wouldn't come off the easy way.It will need a puller to get it off,but I don't have it here and it's still in storage.Once I get it out I will pull it off and show some pictures.

Hi Jeffrey!

Glad to see your enjoying this one.

I have dug up the carby for it, so I will pop that into your pile of goodies for when you make your next trip down in a few weeks, as well as the documentation.

I recall somwhere somone mentioning something about being able to get reproduction stickers for the front, as you can just make out in the pictures you have added of an original condition one, it does not have the large scott bonnar print on the front, it actually has the words "Spin Cut"

I'm not to worried about the spin cut as I was going to make a stencil and mask up and paint it on.I wonder if that's not how it was done anyway.What I am worried about is finding a cutting disc as after I do all this work I would really like to be able to cut some grass,then clean the heck out of it.I mean after all the work is done I would really like to know that it can do what it was build to back in (I believe) 1956.

That's not going to be easy, i have spent a fair amount of time looking for that myself, but I'll keep the hunt going, and let you know if I come up with anything new!!!

Yes I know but if we start the search now we may turn up with something.Did you ever go back to the bin thrower and ask he had the cutting disc for it?

Never gave me a worthwile anwer, but I guess that is to be expected.

I was talking with Joe Brown about the disk, but we couldnt narrow it down, that picture you have added might just help, so I'd suggest sending it to him.

Pop up a fresh post in the wanted, and I will get onto a few contacts in VIC & SA, see if anything new has come up.

It's quite an interesting looking blade disk, again with that old scotty 3 blade set up.

Which remids me, I still have a number of NOS Scotty blades here for you too.

Awesome about the blades,will start my wanted adds on her shortly.

A History Record is available for the Model 22 and
Model 31 Spincuts. To view that record click HERE.


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