Bugger...

Dellortoman said:
Just thinking more on the possibility of casting pieces to insert. It looks like it might be possible to reproduce the fin spacing by taking a mould of the finned area on the un-damaged side use that to make a pattern for the damaged side.

However, given the size of the hole in your case, you'll need to allow for casting shrinkage, so it may not be quite that simple. If you know anyone with a 3D printer, you could make a pattern using copying methods, then get it scanned, scaled up by whatever shrinkage factor deemed appropriate*, 3D printed and use that to cast your alloy. Or if you know someone with the gear to 3D print in aluminium alloy, it'll save a step in the process.

* I've seen aluminium casting shrinkage figures quoted between 1% and 3% depending on the type of alloy and size/shape of the part.

On second thoughts, your Plan A might be simpler. Find a set of rubbish cases that you can carve up :D
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:D :D

I always try to use the simpler method, life's too short for complicated fucking around.

If you look closely at the pics, you may see that the big chunk has broken out along the horizontal oilway.  Dont relish the thought of re-drilling that, although I do have long drill bits.  I'll need to remove some more of the original to get above the drilling and replace with a bit of case with the bore in place.  That way I'll just need to run the drill through to clean up at the joints,

piet
 
Just noticed no oil cooler on it. I never understood the need on an SF/C. Had mine in over 40?s heat  in Australia a lot and it never ran hot, racing likewise. I fitted one to mine at the first rebuild (because the SFC had one) and had to tape over it as the bloody thing ran too cold in a West Oz "winter". The stubs are blanked off now, I?m considering trying to use them for a filter if it can be done neatly (unlikely with my skillset).
Good to see you so positive regarding the repair, Piet. Most people, lacking your resources, would just give up on trying to restore it to originality. It is a very special bike.
 
Tippie said:
Just noticed no oil cooler on it. I never understood the need on an SF/C. Had mine in over 40?s heat  in Australia a lot and it never ran hot, racing likewise. I fitted one to mine at the first rebuild (because the SFC had one) and had to tape over it as the bloody thing ran too cold in a West Oz "winter". The stubs are blanked off now, I?m considering trying to use them for a filter if it can be done neatly (unlikely with my skillset).
Good to see you so positive regarding the repair, Piet. Most people, lacking your resources, would just give up on trying to restore it to originality. It is a very special bike.
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Still don't know how bad it is inside, Lee.  Might still put me off! ::)

I am keen to keep the engine outwardly as original as possible, if only to preserve a bit of Laverda history.  Hopefully, it can be thrashed in true Laverda fashion with a new set of rods and pistons, and valves, and...? !  Only thing that will hold me back then is fear of chucking it down the road. :D  But even that can be repaired... mostly.

If it wasn't such a nice bike to ride, I might have decided to just rebuild it as a static display. :o ;)

piet

 
sfcpiet said:
If it wasn't such a nice bike to ride, I might have decided to just rebuild it as a static display. :o ;)

piet
Click to expand...

:o Nooooooooo, please don?t. You?ll regret it every time you look at it.
It deserves to be shown, as close as possible to original ..... on race tracks, where it belongs.

Come on Piet, you cracked a huge smile when you found out what you had, keep it together for many other smiley moments.
 
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