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Ducati Cucciolo

  • Thread starter Thread starter Guest
  • Start date Start date
Will the final drive allow you to add pedal power for climbing steep hills or pedal power only in stealth mode or for when fuel runs out?
 
This part replaces the standard right side pedal crank and you can see the teeth inside:

IMG_3460.jpg


It drives the counter sprocket on the drive shaft shown here:

IMG_3462.jpg


There is a separate sprocket on the drive shaft that drives the chain to the rear sprocket on the rear wheel.

So, when the engine is running, you don't have to pedal as the counter sprocket will free wheel, but if the engine is stopped or in neutral, you can pedal and drive the chain.

Here's the guts of the counter sprocket, sort of like the starter clutch on the Suzukis:

IMG_4933.jpg
 
Wow

Wow

All I can say is WOW! You got this from your Dad? Geepers! As a colector of motorcycles ,just getting started, I've kicked around the idea of getting one of these. They are in fact the very first Ducati's. So far, I have determined that if I ever want to own one I'll have to send some guy in Brasil gobs of cash and hope he doesn't just keep it. If I do get something in the mail it surely won't be a compleet motor.
 
All I can say is WOW! You got this from your Dad? Geepers! As a colector of motorcycles ,just getting started, I've kicked around the idea of getting one of these. They are in fact the very first Ducati's. So far, I have determined that if I ever want to own one I'll have to send some guy in Brasil gobs of cash and hope he doesn't just keep it. If I do get something in the mail it surely won't be a compleet motor.

Yeah it's pretty cool to have "landed" in my lap so to speak. Not sure how my dad came to have one lying around...

If you're in the vicinity of the Barber museum, I believe they have a vintage festival each year and it looks like some of the guys from the Ducati Pushrod mailing list are in attendance there, so you should be able to get a look see at them in person.

As for getting your hands on one, yes they come up on eBay now and then but aren't cheap and tend to be in far off places...

So far I've only seen one other in person and that was at the Australian Motorcycle Museum where our GSR run ended up last week. It was a T1 or Siata though, which is earlier than this one.

The first was the Siata, the second the Cucciolo T1, and this is the T2 which is the third generation, but essentially all still the first motorcycle engine Ducati made...
 
I finished pulling the clutch apart tonight as far as I need to and cleaned it up.

IMG_5061.jpg


IMG_5062.jpg


The oil on the plates has to be old... like 40 or 50 years I reckon. It's yellow and not so oily and smells wrong to me, so I gave the plates a good clean with the kerosene and will soak in fresh engine oil when it's time for them to go back in.

They all look used but in serviceable condition:

IMG_5063.jpg


IMG_5064.jpg


I wired them up in the right order so they can go back together in the same order they've bedded in and this way I know which way is up and down also.

IMG_5065.jpg


I didn't see an easy way to fully dismantle the clutch assembly but I also don't see a need to as it cleaned up pretty well:

IMG_5066.jpg


Then I pulled out the other bits and pieces that were lying loose in the crate:

IMG_5067.jpg


Gave them all a good clean in the kero, but those spark plugs are very well used so won't be going back in.

The spanner has surface rust but is serviceable.

Two of the clutch plates look ok but the other three have surface rust also.

IMG_5072.jpg


The spring is probably from a control cable and there's a threaded cable adjuster there as well.

I'm not sure what the round cover is for.

IMG_5068.jpg


I believe this part attaches the crank that turns the counter sprocket onto the pedal crank:

IMG_5069.jpg
 
And I also pulled out the cover for the left pedal crank and the pedal crank itself:

IMG_5073.jpg


A bit of surface rust but both cleaned up ok and are definitely serviceable:

IMG_5074.jpg


So from here, the hard bit will be getting the sprocket and bearings off the crank shaft and finding replacement bearings.

Once that's done, I need to decide if I'm going to just clean the cases or if I'll blast them or something.

At this point in time I'm thinking seriously about making a little blasting cabinet and giving some walnut shells a go. One of the guys over on DTT has done that to an old Bridgestone engine and it looks the goods. I think the wet blasting I got done to the 450 will look too "new" whereas the walnut shells should keep it looking its age but still clean it up nicely.
 
Definitely don't want to lose the patina. Looks like you weren't left many spares what kind of sources are you going to use for the bearings and piston rings?
 
Definitely don't want to lose the patina. Looks like you weren't left many spares what kind of sources are you going to use for the bearings and piston rings?

No not much spare at all... although I have two pedal cranks which is a little odd.

I think the rings might be ok and may not need replacing, and as for bearings there are apparently modern ones that fit.

The big things will be the ignition coil and drive sprocket but I think the coil will be easier...
 
No not much spare at all... although I have two pedal cranks which is a little odd.

I think the rings might be ok and may not need replacing, and as for bearings there are apparently modern ones that fit.

The big things will be the ignition coil and drive sprocket but I think the coil will be easier...

The splines on that sprocket look strange. Hopefully you can find something that fits.
 
I saw blasting cabinets on sale at supercheap the other day Pete.

Cheers Tim! Had a look online and they're listed at $199 on there which is a touch out of my range at the moment...

I was thinking I could make one up out of a big cheapo plastic storage box from a $2 shop for probably $50 or so including the blasting gun kit from Supercheap.

Given I'll be using walnut shells rather than sand it should be a little easier to seal up and if I add a PC fan or three I should be able to keep vision through the clear plastic top.

I could be dreaming but if I get the bits cheap enough it's worth a shot!

The splines on that sprocket look strange. Hopefully you can find something that fits.

Do you mean the drive sprocket that's definitely seen better days?

IMG_4936.jpg


That's the only sprocket so far that's definitely shagged... and I mean shagged!

On the other hand, stay tuned and you'll see the carb should come up well with a good go of carb cleaner...
 
Ok, pic's have uploaded... anyway first up I called the guy about the Malvern Star today and I have Wednesday off and I should be able to pick it up then. Can't wait to get it in the garage...

I'm giving the crankshaft to my house mate to take to the mechanic next to his work to see if he has any bright ideas on removing the sprocket and bearings as I can't see any way I'd be able to do it with the lack of tools I have.

And tonight I started on the last remaining bit to disassemble; the carb.

IMG_5075.jpg


IMG_5077.jpg


There's grit in everything as expected and the butterfly didn't really want to move at all, so it needs a huge clean and will definitely need the Yamalube carb cleaner treatment later on before it goes back together.

No rubber intake boots here, it's attached via a metal pipe:

IMG_5081.jpg


And that's what passes for an intake filter... no foam or anything, just a perforated metal plate:

IMG_5080.jpg


Bit grungy under there:

IMG_5090.jpg


There's a good diagram for reference in the workshop manual which helps:

IMG_5091.jpg


The float looks in good shape:

IMG_5098.jpg


The screen on the float valve is clogged with crud and I haven't been able to get it off yet:

IMG_5103.jpg


Here's the state of the mixture screw, and all the jets were in about the same condition:

IMG_5108.jpg


Definitely need to get some more Yamalube carb cleaner!

Sat everything in container for the moment after a good go over with the kero, they can stay in there until it's time for the carb cleaner:

IMG_5112.jpg


The kero clean and shooting some DWF down the butterfly shaft freed it up and it now opens and springs closed quite nicely which is a relief.

I'm getting really excited now... time to start properly cleaning up the cases and so forth and sourcing the few spare parts I need ready for reassembly.
 
This is quite a huge undertaking! I am too scared to fix my cam tensioner leak and you tackle this!
 
Wow that intake pipe looks like something you would find in a hardware store :lol:
 
This is quite a huge undertaking! I am too scared to fix my cam tensioner leak and you tackle this!

Aaah it's not that bad Wally! I rebuilt my 450 from the ground up as my first ever attempt of something like that and now it's become a reliable daily rider plus a weekend fun machine, so this one's proving quite easy in comparison except for sourcing parts...

The cam chain tensioner will be a breeze ;)

Wow that intake pipe looks like something you would find in a hardware store :lol:

Hahhaha it does indeed! Haven't seen any stamped Ducati before though... :p
 
Picked the Malvern Star up today but unfortunately Photobucket is undertaking maintenance so I can't upload photos at the moment.

I found a serial number on it but research is indicating that may be useless as a lot of early Malvern Star records were destroyed in a fire.

As suspected the forks are not appropriate for the frame.

It's going to need some time put in as expected, steering head bearings look to be shot amongst other things.

I at least put some brackets up on the wall to hang it for the time being.

The house mate has the crankshaft and will enquire with the mechanic tomorrow hopefully.
 
Nothing hugely spectacular in the way of photos as I didn't have much time but there it is:

IMG_5114.jpg


The 'bars are sideways but I couldn't straighten them after loosening all the head stock bolts and nuts. WDF was needed just to loosen the bolt on top.

I've squirted more WDF down in there to try to loosen it all up.

Definitely a 2 star frame and you can see the top of the forks where there should be stars if they were genuine:

IMG_5115.jpg


There's a serial number on the left side of the seat tube (you won't be able to read it in the photo):

IMG_5116.jpg


And hanging on the wall to keep it out of the way:

IMG_5117.jpg
 
looks like a lot of work... It's going to look pretty sweet once it's all done
 
Yeah it's gonna need some work alright! No more than the engine though...

When trying to loosen the 'bars I saw a ball or three missing from the steering bearings and the grease looked solid...
 
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