3c right hand side crankshaft thread badly damaged

[piranha-bro2]

Thanks mate ,and I hope so too ,and the names dave ,but I answer to most names that I’m called

Woops! No idea how I managed to decide your name was Paul ... er, sorry Dave! Carry on everyone, nothing to see here ...

 

[townsend846]

Well my lovely little Laverda people it’s not as bad as I was led to believe ,the thread is damaged but the crank is good, just the first 10mm of l/h/thread is damaged and weak where it has been stripped any thoughts would be welcome, I was thinking of turning 6to8 mm off the flywheel boss hopefully leaving me enough room to still attach the puller , again thoughts please

 

[townsend846]

 

[townsend846]

View attachment 57422

 

[townsend846]

 

[townsend846]

Well my lovely little Laverda people it’s not as bad as I was led to believe ,the thread is damaged but the crank is good, just the first 10mm of l/h/thread is damaged and weak where it has been stripped any thoughts would be welcome, I was thinking of turning 6to8 mm off the flywheel boss hopefully leaving me enough room to still attach the puller , again thoughts pleaseView attachment 57414

 

[hooksey]

Can you run a die back over it, to clean it up.

 

[Exmoor beast]

Looks like a proper barn find, well done. The Astralite wheels fitted have had rivet failures ( standard equipment on Heskeths!) this can be sorted by fitting new rivets. There is a guy who took on the Astralite repairs is up North-but I can’t seem to find his details. Corrosion sets in between the rim / rivet - so they look OK from outside .
I’m a bit sensitive to wheel failure as I test rode a bike with super lightweight magnesium wheels that literally fell to bits 20 miles later with someone else riding- he got away with it luckily!

 

[Paul Marx]

Can you run a die back over it, to clean it up.

Looks like it's past that.

Paul

 

[CLEMTOG]

If you are contemplating turning the thread down to a smaller size, (bush back to stock size? or bolt on size reducer) this will require the crank to be removed from the engine and at least the right hand part depressed from the rest, so (IMHO) I would be looking for a replacement part, I doubt that it will be hard to find, or massively expensive, The one on the other end (drive side) is in very shirt supply but at great cost is available, your puller looks like a stainless one, some time ago a well known UK dealer made a batch of these with the thread cut undersize, so that when you install it and attempt a rotor removal, it strips the 42mm thread, again a redilly available (used) part, there are plenty about since the Redax system does not use it.

so in both cases used parts is your friend if you ask me, but you don't have to do that, plenty of others will say the same.

CLEM

 

[CLEMTOG]

see ebay item

84638953078

CLEM

 

[townsend846]

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.

Can you run a die back over it, to clean it up.

If I can find a L/H die I would , do you know what size and pitch it is

 

[CLEMTOG]

From Andy Wagner, Laverda Racing Team Kontsanz, Germany​

Details for item number 43-27​

• 

Description

Crankshaft flange Bosch (RHS 6)

Tips concerning this part

Within our printed catalogue there are several 100 additional mounting hints to many parts.

Suitable for the following Laverda models

GT SF SFC 1000 1200 120°

article condition

Original parts (*A): Generally it is to be accepted that small damage to paint, chrome etc is present after 30 years of storage. We will of course accept return within 14 days if you are not happy (money back guarantee). Please first inform us by phone of any returned goods. Note that for original parts e.g. master brake cylinder or callipers you must first for safety install new seals. These new seals are inclusive and must be inserted by yourself.

Packaging Unit

Stck.

Price included 19% German VAT

238.45 € no problem, you are welcome CLEM

 

[townsend846]

From Andy Wagner, Laverda Racing Team Kontsanz, Germany​

Details for item number 43-27​

• 

Description

Crankshaft flange Bosch (RHS 6)

Tips concerning this part

Within our printed catalogue there are several 100 additional mounting hints to many parts.

Suitable for the following Laverda models

GT SF SFC 1000 1200 120°

article condition

Original parts (*A): Generally it is to be accepted that small damage to paint, chrome etc is present after 30 years of storage. We will of course accept return within 14 days if you are not happy (money back guarantee). Please first inform us by phone of any returned goods. Note that for original parts e.g. master brake cylinder or callipers you must first for safety install new seals. These new seals are inclusive and must be inserted by yourself.

Packaging Unit

Stck.

Price included 19% German VAT

238.45 € no problem, you are welcome CLEM

Thanks clem nice to know that this part is available

 

[hooksey]

If I can find a L/H die I would , do you know what size and pitch it is

I think it’s, 22mm x 1.25

 

[townsend846]

 

[townsend846]

View attachment 57442

Where do I go for a new crankshaft nut knowledgable people

 

[Paul Marx]

Where do I go for a new crankshaft nut knowledgable people

I should imagine that the UK specific Laverda people can supply otherwise Laverda Paradies, just click and pay.

Paul

 

[townsend846]

Looks like a proper barn find, well done. The Astralite wheels fitted have had rivet failures ( standard equipment on Heskeths!) this can be sorted by fitting new rivets. There is a guy who took on the Astralite repairs is up North-but I can’t seem to find his details. Corrosion sets in between the rim / rivet - so they look OK from outside .
I’m a bit sensitive to wheel failure as I test rode a bike with super lightweight magnesium wheels that literally fell to bits 20 miles later with someone else riding- he got away with it luckily!

There not to badly corroded by the looks of it but I’m having the tyr off and painted

 

[Dellortoman]

Using wire cutters is a rather brutal way of removing the charging and pickup board. Especilly if it was intended for re-use, which it apparently was because you need it with the Witt ignition system.

I posted a reply to your question on wiring up all that stuff in the thread about the 3C charging system.