3c right hand side crankshaft thread badly damaged

sfcpiet said:
Not shooting anybody down, just sharing my experience. This ain't no club where only niceties are exchanged and I don't beat around the bush.

piet
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Maybe a little more encouragement and help ,and I didn’t expect the red carpet treatment but a kick in the bollocks often offends Piet, anyways really don’t want to upset anyone at this stage of my new project and hopefully can lean on you guys for knowledge and help love n peace man
 
It's always a good idea to spend time to understand how an online forum works, and who's who before pitching in. There are apparently some folk who find the sometimes robust vibe here not to their liking. That's OK - there are plenty of alternatives nowadays although not all offer reliable advice. What we can offer is free access to an unmatched level of hard won Laverda knowledge & expertise. It's your choice whether you wish to take advantage of it.

As most are aware, admins are not here to offer effusive welcomes or encouragement! Having said that, please stick around because we would all like you to succeed with your project.
 
Paul, with your experience and equipment you are in an excellent position to own and repair this bike whether it turns into a proverbial 'can of' or not. I'm sure Piet's and others comments come from many many instances either in their own professional lives or that they observe here where as quoted, the 'rose coloured glasses' syndrome is shattered into shards of pink lenses and a cloud shredded banknotes 🙃 In fact, you may become a great source of info and expertise and help yourself, once you've delved a little into your triple's heart.

Good luck, enjoy that pint or two!
 
Hey townsend846, welcome to the Laverda Forum! (well, somebody had to say it). It's a friendly place.

Interesting and unusual little problem you have. Pretty much anything is fixable with a bit of ingenuity and you have some good advice on how to proceed. Don't be discouraged by prophecies of mechanical catastrophe and financial doom. Keep us in the loop. I'm sure many of us would like to know how it turns out.

​

 
Admin said:
It's always a good idea to spend time to understand how an online forum works, and who's who before pitching in. There are apparently some folk who find the sometimes robust vibe here not to their liking. That's OK - there are plenty of alternatives nowadays although not all offer reliable advice. What we can offer is free access to an unmatched level of hard won Laverda knowledge & expertise. It's your choice whether you wish to take advantage of it.

As most are aware, admins are not here to offer effusive welcomes or encouragement! Having said that, please stick around because we would all like you to succeed with your project.
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Wow is that a welcome
 
Dellortoman said:
Hey townsend846, welcome to the Laverda Forum! (well, somebody had to say it). It's a friendly place.

Interesting and unusual little problem you have. Pretty much anything is fixable with a bit of ingenuity and you have some good advice on how to proceed. Don't be discouraged by prophecies of mechanical catastrophe and financial doom. Keep us in the loop. I'm sure many of us would like to know how it turns out.

​

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Thanks and I won’t be discouraged, and yes the first welcome picking bike up today so can’t wait to get amongst it , did a little research into how the crank was damaged and so I’m told it was some one who didn’t know it was a left hand thread and a big spanner trying to turn it the wrong way ( so much for the tread in the nut stripping) and torn the thread piece of crank clean off . Photos to follow, thanks again for the welcome
 
I could be wrong here as series 11's is not something that I have had much to do with, but I believe (someone more knowledable confirm please) that some are indeed LHT, but at a different production period they are RHT. So the crank buster may have been reading a manual that told him which way to turn.
CLEM
 
piranha-bro2 said:
Paul, with your experience and equipment you are in an excellent position to own and repair this bike whether it turns into a proverbial 'can of' or not. I'm sure Piet's and others comments come from many many instances either in their own professional lives or that they observe here where as quoted, the 'rose coloured glasses' syndrome is shattered into shards of pink lenses and a cloud shredded banknotes 🙃 In fact, you may become a great source of info and expertise and help yourself, once you've delved a little into your triple's heart.

Good luck, enjoy that pint or two!
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Thanks mate ,and I hope so too ,and the names dave ,but I answer to most names that I’m called ,and 2 turned into 4
 
Dellortoman said:
Hey townsend846, welcome to the Laverda Forum! (well, somebody had to say it). It's a friendly place.

Interesting and unusual little problem you have. Pretty much anything is fixable with a bit of ingenuity and you have some good advice on how to proceed. Don't be discouraged by prophecies of mechanical catastrophe and financial doom. Keep us in the loop. I'm sure many of us would like to know how it turns out.

​

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I certainly will del unless I’m banished from the forum
 
townsend846 said:
I certainly will del unless I’m banished from the forum
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G'day Dave sounds like you have bought whats referred to as a series 2 bike, this bike may also be nicknamed an ND model due to the alternator in use. (you can tell a series 2 bike or engine by the small round extension on the primary case, this houses the ignition pickups)
Maybe somebody has just snapped off the securing bolt that threads into the crankshaft snout, as mentioned some bikes had a left hand thread and others a right hand thread, sounds more plausible that snapping the crank taper off but the evidence will be once you have seen it for yourself.
If the crankshaft is damaged you can still run the engine total loss but of course your battery wont last for too long.
 
Welcome to the loony bin!
Post a photo of the bike once you've got it. There is some uncertainty with regard to an 81 bike as it *should* be a series 2 engine but who knows by now there are several reasons it might be a series1. It makes the RHS of the crank quite different. Not much point theorising on it until that is confirmed. Series 1 or 2, your description is an unusual failure mode but there are more things in heaven and earth than are dreamt of in our philosophy.
Post up a pic once you've got it and we can try to help from there.
 
mauricejota7604 said:
G'day Dave sounds like you have bought whats referred to as a series 2 bike, this bike may also be nicknamed an ND model due to the alternator in use. (you can tell a series 2 bike or engine by the small round extension on the primary case, this houses the ignition pickups)
Maybe somebody has just snapped off the securing bolt that threads into the crankshaft snout, as mentioned some bikes had a left hand thread and others a right hand thread, sounds more plausible that snapping the crank taper off but the evidence will be once you have seen it for yourself.
If the crankshaft is damaged you can still run the engine total loss but of course your battery wont last for too long.
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You'd need to put points on it to make the battery last.

Paul
 
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