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#81202 - 13/01/17 04:04 AM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Hello again BB,

I hope you had a great Christmas and New Year break.

I got the 20 inch machine out today as it look like we may be able to move into our new house in late Feb, so I had better get a mower sorted! We're thinking of putting Aussie Blue Couch down because it stripes nicely.

Anyways, I had a look at the motor and I'm thinking that I'm best to just replace it. I like the look of the Honda motors that you can just 'swap' straight in. I have also seen that there are some 'Chonda' motors on eBay that you have recommended.

Here is what I found with the original B&S motor: [Linked Image]
[Linked Image]

The shaft is pretty badly damaged along with the inside clutch half. One of the head bolts is also snapped off inside the machine. Controversial.

I have 2 spare 17 inch machines here with decent clutch halves, so I'm thinking I will just be able to use one of those machines for parts? Do you have any advice for a suitable replacement motor for the 20 inch?

Here are some photos of the sprockets, reel and bed knife:
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]

I'll be putting in the chain case for colour matching and then I'll be getting started with he paint stripping/sanding/paint prep. I think this one will be on the back burner for the next few weeks as I go back to work and we move in. I am hoping that it will be a much quicker/smoother process though now that I know the most effective and efficient ways to do things.

How are you going with your 20 inch? Did you find the bearing carriers?

Em smile


Membership information

#83947 - 21/03/17 08:10 PM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Hi Team,

It's been a while! We've just moved into our new house and the landscaping is about to start, which means I need to get a move on with the restoration of the 20 inch.

I have a few questions:

1. Does anyone know where I can source a stainless steel front roller with bearings? I have seen a few used in restorations, but have had absolutely no luck in getting one for myself

2. Has anyone ever had their rear rollers rubberised? Was this expensive and more importantly, was it worth it?

I'm going to organise for colour matching of the chain case and also take a few items in to be re-chromed in the next fortnight or so. It won't quite be a faithful restoration as I'm putting a new Chonda motor on it and may get some extra bits and pieces chromed. It'll be close though!

Last edited by emk3; 21/03/17 08:12 PM.

#83949 - 21/03/17 09:51 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

Well it seems that I missed the original post in this thread, thus why I haven't answered it.

As far as paint is concerned could you please get whoever is doing the paint mixing for you to write down exactly what the tinters are and exact amounts used down on paper so that we can put it on the record as we asked these questions all the time.

A Chonda will be a good power plant for it and much cheaper than a Honda. If you do the routine maintenance on it it will last ages as they are pretty good now a days.

I had the bearing carrier tig welded as it's ally and not die cast as first suspected. It's stronger now than it was originally and also it was much cheaper ($30)It also required a slight process on the chaps mill as it had a slight twist in it from the breakage, thus now it has the bearing sitting totally square in the carrier.

I know a chap that does the rubberising of rear rollers but unless you are doing heaps of miles on concrete surfaces it's really not worth it as it aint cheap.

Your bottom blade is a beauty and will just need a light machining at the same time as the reel gets it's spin grind.

Your sprockets are all fine.

Looking forward to seeing more.

Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#83951 - 21/03/17 11:07 PM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Hello again BB!

I'll ask the paint place to note everything down. This green is a lot lighter as compared with the last restoration. I'll also ask if they wrote that mix down at all as well. I think you were pretty impressed with that colour, even though it was quite glossy and lacked the desired hammertoe effect.

You've done well to come up with a solution for your bearing carrier!

If you don't mind me asking, how pricy would it be for the rubber rollers? I've got exposed aggregate driveway and steppers to deal with as well as a concrete pad immediately outside the garage, so it does have to go over concrete a fair bit, which is not ideal...

I'm up for a replacement front roller regardless as the last one has holes in it. I think I might have to get some stainless steel cut to the original size and use the plastic end caps. I really loved the look of the stainless steel rollers with bearings that were going around the ODK forum a few years back, but the trail seems to have gone cold.

I'm extremely happy with my local reel sharpening company. I put in the other two 17 inch reels to be done a few weeks ago. One of them has a broken blade that must have snapped off during use with a previous owner. Anyways, he's just offered to swap it out for another second hand reel at no extra cost. Got to be happy with that! I haven't restored these machines, I've just serviced the motor, replaced some bearings and sharpened the reel/bedknife so that I can get them both up and running in the next week or two.

I plan to use one on my yard for the next few months until my new 20 inch is complete and I've got a friend who is interested in the other. If he doesn't go for it, then I might have to put it on Gumtree. I had originally planned to use them for parts, but I couldn't bring myself to break them down when everything went as planned and I found replacement parts anyways. No point retiring a machine that seems to be a bit of a phoenix....



#83953 - 21/03/17 11:47 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

Absolutely not, you won't find any dealers cannibalising a goer to parts as there's no money in that.

The front roller situation is that they are all custom self made units and not commercially made ones. Yes get a new piece of correctly sized pipe and use the original type plastic end caps and you'll be fine. The custom made units are merely a bit of overkill because they can.

I'm sure the paint people won't have the old paint formula on hand any more as they would've just matched it by eye and kept adding tinters to get it right, but if you give them a heads up before they start then we'll be in front.

Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87578 - 20/08/17 12:48 PM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Hi BB,

Long time no chat. Came across this article in the paper today. Wasn't sure where to post it. Been a bit busy so far this year so not much progress on the 20 inch but hoping to get to it shortly.


Attached Files
IMG_5188.JPG (157 downloads)

#87579 - 20/08/17 05:54 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

Firstly good to see you are a financial member of the forum and enjoying all the benefits it brings. It's fantastic to have good people here.

Nice to see a shot like that in a major Newspaper.

For those unaware the machine pictured is a Series 2, 17 inch Scotty with a replacement Briggs & Stratton engine fitted. The machine was produced around 1978 and still going strong in a commercial environment, now that's saying something isn't it ?

Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87618 - 22/08/17 07:29 AM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Yes, I was pretty impressed to see it feature in the paper. Looks like it's missing a few parts though...

Happy to pay the $5 to be a member considering how much information and assistance I've received from ODK.


#87632 - 22/08/17 08:26 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
That's the spirit !


Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87855 - 16/09/17 06:42 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Alright - we're back on! Today I took apart the 20 inch machine. I think I'm going to approach this one a bit differently as I don't have much spare time when I'm working (currently on holidays for a fortnight though). I think I'll get most parts sandblasted rather than do it myself to save time. I've got a 6 blade reel with a bit of life left on it, but I'm thinking of getting a 10 blade instead.

I'll attach some photos of my progress.

I've found some rail fractures, so will use the gusset repair method as per last restoration. The ID plate is in pretty good nick, so I'm fairly happy about that.
I've got a bit of a question about the decals on this model though. You'll see in one of the photos that the handlebar decal is the Scott Bonnar shield, then the chain case has the older 'Scott Bonnar 45' decal (which I love). The chain case has definitely been painted again, so I'm guessing the previous owner must have switched it over. Am I right in thinking that the chain case decal should just be the plain 'Scott Bonnar' text one?

I'm having some trouble getting the rear rollers apart. I've taken out the screws that keep the 'inserts' together, but I can't pry them out. Anyone got any suggestions?? I've seen posts where people have had them totally dismantled, but I can't get mine to come apart!
I need to dismantle them as I'm going to get the rollers vulcanised with rubber. I've left them soaking overnight so hopefully I have some luck tomorrow.

I was originally set on getting the handlebars re-chromed , but they don't look too bad, so I think I'll see how I go just cleaning them up first. I've also got a new clutch half as I'm planning on putting a Chonda GX160 copy on it. I've got a brass thrust pad on it's way too - any ideas of what I can use as the fibrous washer that's meant to accompany a brass thrust pad?

As always, your opinions and feedback are appreciated!

Em smile


Attached Files
IMG_5310.JPG (146 downloads)
IMG_5314.JPG (149 downloads)
IMG_5313.JPG (149 downloads)
IMG_5311.JPG (146 downloads)
Last edited by Bruce; 16/09/17 09:12 PM. Reason: Corrected image Size

#87856 - 16/09/17 09:52 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

Well here we go again !

Yes I'd strongly suggest this one has had a bit of component swapping going on.

Being that it's a single Ally ID plated chassis then I'd say it would have sported the Pentagon logo on both the Chain Case and also the original catcher. Maybe the chain case has been belted at some stage or had the cutter chain rub through the steel on the original due to lack of proper adjustment.

As far as pulling the roller halves apart, it seems you've achieved this as per your photos.

One thing that many haven't taken into consideration when vulcanising rubber onto the rear roller and is that it will increase the height of the chassis by about 5 mm off the cutting surface which is non adjustable and also changing the angle of attack of the bed knife to grass blades. It might not seem much but every mm changes how things function correctly.

Just a quick word on the rails, your machine looks like its survived rather well with minimal fatigue fractures, nonetheless I would utilise the Gusset repair method but I would increase the length of the gussets so as to help the torsional strength of the rails and push the stress out wider to where the chassis is stronger.

Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87858 - 17/09/17 01:18 PM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Thanks for the reply BB!

I had all sorts of trouble removing the key from the rear roller shaft. Had to get hubby out to help me with that one. I had a bit of a play with the handlebars and ran over them with some alfoil and water. They may not need re-chroming after all!

Will take your advice re the length of the gussets. I can imagine the stress those 20inch rails must deal with!

In terms of the vulcanised rubber, I think I may be able to get away with it. I've got blue couch which mows a bit higher than green. Do you think that would be okay? I will probably maintain it once a week so don't think I could mow it too low anyway.


#87876 - 19/09/17 08:08 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
A few more progress photos to share.

1. The front roller shaft - is this still serviceable?
2. Degreased parts ready for cleaning and/or sandblasting. Finally got the 'hub cap' things out of the rear rollers.
3. Paint matching. I asked for more silicon in this mixture as I wasn't overly impressed with he lack of 'hammertone effect' in the last lot of paint. Though - their colour matching is very good.
4. Handlebars after their final clean and polish. Very happy with how they've come up.


Attached Files
IMG_5318.JPG (107 downloads)
IMG_5319.JPG (0 downloads)

#87886 - 20/09/17 02:24 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

That paint sample is a finger dab and as such will always react differently to spraying. I don't feel there's too much of an issue there.

Did you get them to write the formula down for you ?

As far as the roller shaft is concerned the end piece could be easily reformed back to what it used to be prior to its constant bashing that its had over the years. The main thing to concern yourself with is the wear on the shaft itself where the plastic caps have been rotating on. The shafts as replacement parts are quite pricey but really all you have to do is cut the shaft off at the anti rotation flange, then drill it out and replace the shaft with a new piece and re-weld along with running a die over the end to cut a new thread.

In regards to the handle bars, they look magnificent, I'll swap mine for yours, crazy

Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87902 - 21/09/17 07:38 PM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Hi BB,

Yes, I trusted him considering he did a great job matching the colour last time. I did ask him for a paint formula, but unfortunately he said it's all in his head and done by eye. I didn't press him on it, but if I continue to order through them and take on a few more rest's, I'll definitely be a bit firm about it.

Now I've got a question - I've purchased a few brass thrust pads from: http://jcnco.bigcartel.com/product/thrust-pad

What thickness (in mm) is the fibrous washer meant to be that originally went with these thrust pads? I had a quick look at bunnings, but it might end up being easier to just cut them out of a sheet for myself.

What is your suggestion for obtaining a fibre washer of the correct size?

My husband brought home 6m worth of polished stainless tubing for the front roller. Apparently that's the smallest length you can buy it in. Looks like I'll have to make a few and put them on eBay or take on a few more reso's. Ha!

Just waiting on the parts back from the sandblaster and then I'll get started on painting. Hoping to be able to chuck most of the small parts in a tumbler over the weekend for cleaning.

Em

Last edited by emk3; 21/09/17 07:38 PM.

#87955 - 25/09/17 10:10 AM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Progress update:
I cut my steel tube to size and put new end caps on. Pretty happy with the look of the new front roller!

Also painted the rear rollers in a hammertone silver. Not really sure why I went that colour, but we'll see what it looks like once it's on.

All the smaller parts came up really well after ultrasonic cleaning and a few hours in the tumbler.


Attached Files
IMG_5373.PNG (4 downloads)
IMG_5374.PNG (2 downloads)
IMG_5375.PNG (54 downloads)
IMG_5376.PNG (52 downloads)
IMG_5377.PNG (3 downloads)

#87956 - 25/09/17 12:48 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

Gee that roller looks good, you'll be able to park it in your lounge room, but seriously it's sad that it won't stay that way for long.

If I may ask how much did the 6 metre length end up setting you back ? as that's a s*%t load of rollers there, also what is the exact dimension of the tubing for future reference to other restorers ?

Hammertone silver on the rear roller is good. So I see you decided against the vulcanisation process. Personally I feel its a waste of time.

I have to make up a traveling trolley for my machines as they traverse quite a bit of harsh bitumen to get from the garage and to the front lawn where the mowers are generally used as I don't want to harsh up the rear roller as 20 inch rollers are hard to come by, especially the 3 piece units.

I'll organise to transpose the links over to photos in your last post so that they can all be viewed instantly.

....................Meanwhile, keep up the good work.


Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87963 - 26/09/17 08:33 PM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Hi BB,

Painted the reel today. Hopefully most of the Hammertone green will go on tomorrow. I won't get to the chassis for a while as I can't get the welding done until next week.

As for the front rollers, OD is 70mm and thickness is 1.6mm
Tubes for 20" are 493mm in length.
Tubes for 17" are 417mm in length.
I belive tubes for 14" 337mm (TBC).
The 6m of tubing cost just over $80 from Stirlings Australia. I just had them cut it into 2m lengths so that they could fit in the car.

I still don't have a solution for the fibre washer to go with the brass thrust pad. Any ideas?


Attached Files

#87965 - 26/09/17 10:10 PM Re: SB 45 - dual project (newbie) [Re: emk3]  
Bonnar_Bloke  Offline
Moderator
Joined: Aug 2011
Posts: 1,575
Adelaide, Australia
Hi Em,

You'll probably have to go to a Fasteners type outlet and they'll have quite a range. Here in Adelaide we have a store called "United Fasteners".
There's an outlet of theirs in Brisbane.

http://www.unitedfasteners.com.au/

You might have to trim one down to size though.

BTW. Thanks for those documented dimensions of the rollers.

Any money by having the tube cut down into 2m lengths that there will will be some unwarranted wastage.


Cheers,
BB.


I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.

#87966 - 27/09/17 11:45 AM Re: SB 45 - dual project (newbie) [Re: Bonnar_Bloke]  
emk3  Offline
Trainee
Joined: Oct 2016
Posts: 54
Gold Coast, Queensland, Austra...
Thanks BB, I'll look into that.

I put the green hammertone down today. Very happy with the smaller parts but not so thrilled with the lager ones. Not sure if the gun was pulsing, but coverage wasn't as even on those. Anyways, I'll see what it's like when it all dries and if I'm still unhappy, I might just put another coat on with a foam roller.

Em


Attached Files
IMG_5419.PNG (7 downloads)
IMG_5420.PNG (4 downloads)
IMG_5421.PNG (4 downloads)
Last edited by emk3; 27/09/17 11:47 AM.

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