1. Remove drive chain sprocket - what does the tool look like and how do I hold the roller assembly still, while I unscrew the LH threaded sprockets? The sprocket has two holes in it. Are these to aid removal?
Hello Oliver
No tool is listed for the landroll sprocket removal.
However, this may help:-
1a. Reel sprocket - This two two sprockets welded together. I can see that I need to insert wood into reel to hold that, but how does the double sprocket get removed - what does that tool look like? Assume it too is LH thread. I tried a chain oil filter removal tool, but simply bent the handle of the tool.
Usually a shock with a soft wood is sufficient.
However, here is an alternate method:-
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2016/10/full-7392-30685-snap13.jpg)
2. How to dismantle centrifugal clutch which seems to be sealed by having the bolts heads peened over. Special tools required?
I'm not sure. This was a significant change from the larger,
serviceable Ransomes one. Here is some Masport info:-
3. The clutch friction plate has grease on it, but cleans up OK in turps. Is it worth getting the friction material replaced?
If it is sufficiently thick it should be okay. They can readily withstand
some grease or oil impregnation.
4. Any idea on colour or type of paint to match it back to the original?
No. I guess a colour match will be the only way.
I have made a tool to remove the clutch plate assembly already (an old padlock hasp and spanner through it to act as a lever!)
Well that's clever. Any photo of the improvised tool?
Finally, the mower bed has a double helix blade, which is different to almost all the photos I have seen on your forums. I assume from other photos it is also a Ransome unit. Any idea where I can get new riverts to replace (after sharpening) the bottom blade?
It is uncertain who first patented the double helix. Ransomes were
using them late 19th and early 20th century. Masport used the double
helix from the early days - with their own design (not Ransomes).
Only Morrison and Victa appear to have used the double helix on
their copies of the Ransomes. Ransomes, themselves, were not using
the double helix at all on post WWII mowers!
Rivets are problematic - the later owner of Morrison changed to
conventional screws. Ransomes never used rivets on the equivalent model.
I can find no reference to the size required. A fastener supplier
should have them as 'solid rivets':-
http://www.mainlandfasteners.co.nz/1497/RivetsI hope the resto goes well.
Please keep us informed as to progress.
Hope this helps.------------------------
Jack