What did you do to or for or with your Laverda today?

Bummer they use 7mm threads, Rob. SF1/2/3 use M8 - I bought new ones from Bunnings. Big job machining round bar into nuts! Can't get 8mm hex bar and drill and tap to M7?
 
In the past I’ve bought 7mm nuts from bicycle shops ( in Italy in 2009) and have also found them in little blister packs in super cheap auto here in Australia. No idea why they carry 7mm but I always carry a few just in case. Worst case scenario is to remove one of your chain adjusters and use that nut, it will at least get you home😎👍
Tom
 
Q, the nearest hex bar to me would be 450 kays away. Living in bum fuck nowhere I have to use what is available in my shed. I'm lucky that after a life time model making I have accumulated all sorts of odd ball stuff that's useful. In this case I had a length of brass rod 12.7mm dia.
You know Tom, I was desperately trying to think of a 7mm nut that I could use. I did have a vague recollection that the clutch cable adjuster was 7mm but that turned out to be 8. The chain adjuster nuts on the motodd are 10mm. The SFC chain adjuster nuts are larger than the SFs but I'm going to measure them today to check. I will be adding a couple of spare nuts to my on board spares next to the spare ign box.
This is the 2nd time in 52 years of riding laverdas that I've lost an exhaust nut. My stupid fault not remembering the crush washers were replaced.
That's what happens when you don't ride the bike after fettering. I had to drop the motor to do 2 time certs on those 8mm studs on the cam bearings. That was like 2 months ago hence forgetting to check after a ride.
the new SSB 600cca lithium battery has also arrived so that's todays job. Unfortunately the terminals are opposite on this one so now I have to make a new cable to the starter relay as well as a couple of earth wires.
Where else would one find a 7mm nut on a Laverda?
 
Ok that's a thought. I had already retired the SFC and loaded it onto the trailer. The Motodd had already stolen it's battery.
If it had the battery and wasn't on the trailer I would've use it for the Sunday afternoon sessions. Pretty sure the chain adjuster on the SFC is 7mm.
It uses a 11mm spanner. Just didn't think of it. I was feeling fairy knackered anyway, quit while ahead!!
Next track day weekend is early December so will have both bikes ready for that event.
It has done 14 track days over the last couple of years and have never had to use a spanner on it apart from a couple of chain adjustments.
And this time it was purely my fault so all in all the Motodd has performed faultlessly. Can't complain about that.
 
piranha-bro2 said:
The internal mesh of the 4-stud housing, Marnix? Wonder why they needed to up that from the std SF M6??? Did they shear off in endurance races?!
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Not the pebble strainer Quentin.;)

The SFC had an exhaust bracket for the 2-1 system bolted to two of the four filter plate studs.

The '73 works engine has 2 x M6 and 2 x M7 where the exhaust bracket would be attached.

piet
 
I know Motodrob is somewhere out in the bush so not helpful for him at this point but for others wanting to find a supply of M7 nuts, older Citroën cars and vans used a lot of M7 threads. So should you wish to purchase M7 fasteners a cheaper source maybe your local/nearest OldTimer Citroën parts supplier.
 
Charley said:
I know Motodrob is somewhere out in the bush so not helpful for him at this point but for others wanting to find a supply of M7 nuts, older Citroën cars and vans used a lot of M7 threads. So should you wish to purchase M7 fasteners a cheaper source maybe your local/nearest OldTimer Citroën parts supplier.
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Those Citroen ones I obtained some years ago - they are coppered and self-locking, never lost one since. In Germany they are easily available:
Citroën 2CV exhaust nuts

Not sure for OZ though - maybe just google them ...
 
motoddrob said:
Pretty sure it has been mentioned here that the BMW 5 series used M7 flanged exhaust nuts??
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Pretty sure it could be the 02 series of BMW cars... ;) Not sure if it was the exhaust manifold, but M7 was used pretty extensively on those. Who remembers the NSU air-cooled cars? These had M7 studs and bolts all over them!

piet
 
sfcpiet said:
Pretty sure it could be the 02 series of BMW cars... ;) Not sure if it was the exhaust manifold, but M7 was used pretty extensively on those. Who remembers the NSU air-cooled cars? These had M7 studs and bolts all over them!

piet
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I swapped all the M7 exhaust studs for M8 on the small valve head that became the BIG valve head on the SFQ.
 
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