OutdoorKing Repair Forum Forums Collectors Corner Cylinder Scott Bonnar newbie - Model 45 20"

Hi all,

New to this site but long time lawnnie and just recently getting attached to all things scott bonnar. I've been searching for a mower and finally made the decision to buy one the other day. i do wish i had of discovered this site before purchasing but still happy with my new love. Just chasing some info from you guys on the age etc of this mower, i hope the pictures upload properly.

the numbers on the body are- 92068 and 450431
the numbers on the engine are-
model- 91212
type- 1226E1
code- 0207223A

any info you guys could give me would be great.

still deciding what i want to do from here, whether i do a full rebuild on it or just get it running enough to start using it and hunt for another to do a rebuild on. as i'm sure you all know, once you pop you cant stop.

Hi Nigelmort,

Firstly a big Hot Adelaide welcome to the ODK Forums.

This was the one on Gumtree for around $600 and then suddenly dropped to about $300, am I correct ?

I'm not trying to burst your bubble but this one has suffered rail failure and had a piece of flat plate welded between the rails underneath the engine as a quick fix.

What I would like you to do is to run a straight edge along the rails and tell me if the rear rail has sag in the middle of it. If it does then repairs must be done to save it. While you're at it check the front rail as well.

Sadly the 20 inch twin rail machine suffers from this scenario the worst as there is just too much flexible metal on hand in the rails.

Look forward to hearing back soon.

Cheers,
BB.

Hi BB,

Thanks for the welcome and quick response. You're very much on the ball. There is a slight sag in the rails, what's the process in getting it fixed? Is it a major job? Like I said in my original post, I wish I'd discovered this site first.

Thanks

Hi Nigel,

Well Footy is certainly my game.

For the sake of correct alignment it must be rectified, if not then the same result will eventuate and it simply puts undue stress on the drive line components.

Don't get me wrong it can be done but if you're not doing it yourself it will be rather pricey with welding to be done and gussets to be made up and stiched into place to strengthen those rails. They also need to be pressed back into alignment prior to welding.

Check out the following thread and this will give you much more of an idea as to what needs to be done.

https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=64426&page=1


Cheers,
BB.

Morning BB,

That link is very helpful, seems a reasonably easy fix and something ill do myself. Can you give any other info on the machine? (even if is more bad news ) still trying to decide if i go all out on this one or just get it to a workable stage and source another for resto.

Thanks,
Nigel

Hi Nigel,

Basically there's not much more to report apart from the fact that the 20 inch machine by the time when yours (Series II) was built was pretty much in demise as the cost was high and the mower market had nearly completely moved to rotaries thus the preferred size was the 17 inch unit for those that still considered the reel mower the best type available. Rest assured though the 20 is the best if you have the size lawn that will work well with the large size machine.

Cheers,
BB.

Hi BB,

Thanks for your help and info. I have quite a large lawn area which is why I prefered the 20" model. My last question for now is do you know where I would find new ones of these? (Picture below) I've searched the net and this forum and can't find these exact ones?

Thanks,
Nigel.

G'day Nigelmort,
Here are some PDF downloads.

The operators manual for that engine: http://bsintek.basco.com/MDEXResultsPages/PDFDisplayPage.aspx?fileName=flmvtLX-nfBhU7y

You'll find the part numbers you need in the IPL; http://bsintek.basco.com/MDEXResultsPages/PDFDisplayPage.aspx?fileName=18jsBLXBnfBhU7y

Be warned, those bits are quite exy for what they are, as I doubt that there is an aftermarket source for them.

Hi Gadge,

That's great, thanks for the links.

Cheers,
Nigel