LAVERDA Zane camshaft/timing chain
- Thread starter lavgert
- Start date
Volki said:
Good money eh, Volker?
But, if it's the only one left in the world ... :-*Gijs has recently managed to supply one apparently. Have asked if he has any more.
Otherwise, we'll have to hope that Giuliano (or someone else; your good self, Volker, perhaps?
) can be persuaded to lean on Regina to cut some pieces of chain a bit longer than they do for Guzzis.Assuming Regina still has any left, that is.
So what's the big deal?
Current Euro price is ?115, equates to close to OZ$190. Add import duty and freight, 200 bucks doesn't sound too wrong. Hope Greg gets/got a decent price from Guiliano.
Reckon the Laverda community has to get comfortable with 2020's prices, if it likes or not, 1980 is long past.
Or is anybody here still working for 1980's wages??
piet
Current Euro price is ?115, equates to close to OZ$190. Add import duty and freight, 200 bucks doesn't sound too wrong. Hope Greg gets/got a decent price from Guiliano.
Reckon the Laverda community has to get comfortable with 2020's prices, if it likes or not, 1980 is long past.
Or is anybody here still working for 1980's wages??
piet
lavgert
Hero member
- Location
- Vienna, Austria
Ventodue said:
... Gijs is sold out! Ciao, Gert
motoddrob
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- Location
- S/W Australia
Or is anybody here still working for 1980's wages??
yep that's me!! but I only have to work 10 hour a week
yep that's me!!
but I only have to work 10 hour a week
piranha-bro2
Hero member
- Location
- Melbourne
Do the Chinese do a 'Regina'? 
:-*
:-* 
Dellortoman
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- Location
- Tasmania, Australia
What's so special about the Zane cam chain? I presume it's a standard spec roller chain. Is there no other manufacturer that makes an equivalent?
Dellortoman said:
Pitch and width that is no longer used, other than in Moto Guzzi and Laverda engines. Wasn't really common when these engines were designed, either. Not even the Brits used such a wacky chain! No idea what moved the designers to use it. :
AfaIk, Regina was the only manufacturer that made it in considerable quantities, lots of smaller chain manufacturers that may have had it in their portfolio have gone down the drain since then. If it weren't for the middle crank journal with the integral sprocket, it would be a doddle to mod the cam drive for another, more common chain.
Obviously, DID or IWIS have absolutely no interest in making something of such limited demand.
piet
Dellortoman
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- Location
- Tasmania, Australia
sfcpiet said:Pitch and width that is no longer used ? No idea what moved the designers to use it. :
Thanks Piet.
Yes, that does defy logic. You'd think a common chain size would be an obvious choice.
Just out of curiosity, do you recall the pitch and width of the Zane chain?
piranha-bro2
Hero member
- Location
- Melbourne
Dellortoman said:
FFS. It's simply absurd that a 'modern' (ie post war!) manufacturer would use some weirdo chain size for a part that is destined for regular replacement. Another reason to NOT own a ZANE?! Or fitting a different motor entirely to a fabulous rolling chassis.
I'd probably be adding a new centre piece to the list of 'mods' to go with big-ends ... or is the centre cam sprocket section part of a complete crank web??
I am bloody happy this hasnt occurred more often with Laverda bits and pieces. Couple of examples over the years, Hondas 23-inch front wheel, the 16-inch front wheels that you couldn't get tyres for a very long time. Fashionable bind alleys manufacturers have totalled down and buggared the owners when supplies eventually dry up.
Dellortoman
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- Location
- Tasmania, Australia
Piranha Brother 2 said:
Not sure about the 750 twins, but on the triples the cam chain sprocket is part of the crank, so I presume the 750's are made the same way.
Even so, it probably isn't beyond the realms of possibility to machine the sprocket off the crank centre, press a different one on and fix it in position somehow (keyed or welded).
The new chain/sprocket may have a slightly different pitch from the original, so the sprocket diameters might be slightly different. You'd need to make sure there's room for the new chain in the cam chain tunnel.
Dellortoman said:
We're talking 500/600/650/668/750 here, Cam. All have integral sprockets. Pressing or welding on another is definitely an option.
5/16" x 7/32". Reckon it was chosen to reduce cam sprocket diametre/engine height and head width(length?). Tooth count is the same as all other Lavs, 15/30 iIrc. Might get away with 14/28, using a triple type 06B-1 chain. At least the chain tunnel is wide enough!
piet
Dellortoman
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- Location
- Tasmania, Australia
By saying it's do-able, you could be making work for yourself as the world's supply of 5/16" x 7/32" chain is exhausted. You might have to set up a production line pressing sprockets onto Zane cranks.
Dellortoman said:By saying it's do-able, you could be making work for yourself as the world's supply of 5/16" x 7/32" chain is exhausted. You might have to set up a production line pressing sprockets onto Zane cranks.
Sure... I need that like I need a pimple on my arse.
piet
piranha-bro2
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- Location
- Melbourne
Dellortoman said:
750 (Breg) twins have removable centre pieces that have the cam sprocket teeth machined into them. Not a cheap job to make new SFC style press fit centres but probably only 3 or 4 cam chain's worth!!
Andy
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- Location
- Auckland, roughly
sfcpiet said:Sure... I need that like I need a pimple on my arse.
piet
You could always sub the work out.... what?s the freight cost to Tassie...?