Wet to dry clutch conversion

[nickshelby500kr]

Can anyone explain to me the physical differences between a wet clutch case and a dry clutch case? Such as the hyper 1100 evo and the monster 1100 evo. Both share the same engine. Except one has a dry clutch one has a wet.

Is it just plugged oil galleys or something of the sort? I know the entire clutch assembly is different along with the primary gear and clutch gear. But in theory would you be able to swap the engine cover from the hyper evo, as well as primary and clutch assemblies and have a dry clutch monster evo?


Or is it something about that case design that is physically preventing it from being possible?

Part question, part thinking out loud.

[kopfjäger]

It's possible, but it's not just any easy swap.

[nickshelby500kr]

It's possible, but it's not just any easy swap.

How not easy are we talking here? I am under the assumption that this can be done using the hyper parts bin.

-engine cover clutch side
-complete clutch assembly (basket, plates, pressure)
-pushrod
-primary gear
-clutch gear

And then I would need to determine how exactly the dry clutch bikes keep oil out of the clutch area and find a way to plug it so to speak.

[kopfjäger]

Stew will need to answer as I'm not a mechanic. I did it to my 800, but it was pricey.

[kopfjäger]

http://www.ducatimonsterforum.org/index.php?topic=57170.msg1060966#msg1060966

[Speeddog]

How not easy are we talking here? I am under the assumption that this can be done using the hyper parts bin.

-engine cover clutch side
-complete clutch assembly (basket, plates, pressure)
-pushrod
-primary gear
-clutch gear

And then I would need to determine how exactly the dry clutch bikes keep oil out of the clutch area and find a way to plug it so to speak.

In the past, that's all you would need, I'd say it's likely even the 1100EVO would be the same.
Well, you would need the seal that's mounted in the clutch cover too, which deals with the last issue you noted.
Some pushrod O-rings....
Download the parts catalogues of the models in question and start comparing.
Make sure the crank and trans input shafts are the same part number.

[nickshelby500kr]

Download the parts catalogues of the models in question and start comparing.
Make sure the crank and trans input shafts are the same part number.

Cranks are same part number. I would have to double check for the input shaft. If the input shafts are not the same, I will probably just scrap the idea because I don't really feel like having to split the cases for a purely aesthetic (in my mind) mod.

Aside from that, is the big black seal around the in the center of the engine cover the only thing that prevents the oil from entering the clutch area? I originally though this was the case but tossed it because it seemed too simple to be real. Made it more complicated in my head.

[nickshelby500kr]

Different main shafts

Monster



Hyper



I'm not sure what part 30 and 31 are for on the hyper though as they are not on the monster. And the end of the hyper shaft appears to be threaded.

[kopfjäger]

Like I said, it's a pricey mod. 

[nickshelby500kr]

The output (lay) shafts are the same part number. But the input (main) shaft is different. What effect would this have on the clutch and primary gears from the hyper if any?

[thorn14]

I have no idea if this helps for the new generation but here is a bookmark I saved which a guy details out the conversion for a 620, different parts and all I assume, but might help (especially page 3 with a diagram).

http://www.ukmonster.co.uk/monster/showthread.php?t=37403

[kopfjäger]

Not worth the money to do the mod, cheaper to buy a dry clutch engine.

[caperix]

I know on the older large case engines with the wet clutch, sport classic/848.  The ducati performance kit for wet clutch conversion on the 848 could be used.  The evo uses a different part number clutch then those 2 bikes but that may be just due to it being a APTC clutch.  There has been some thought that some money could be saved by using factory parts instead on the higher dollar slipper & mag side case in the kit, but I have yet to hear if the transmission input shaft is directly compadable with the dry clutch basket.  The small case engines were difficult to swap over due to a completly different input shaft design, I think I posted some pics of the difference some time back, I can try to find if I still have those pics saved. 

[nickshelby500kr]

I was able to find a complete trans assembly for a hyper 1100 evo on eBay and it look identical to the design like the monster parts catalog uses. Where as the hyper catalog screenshot the shaft sort of steps down and is threaded outside and inside for some kind of screw. I just need to find an actual monster 1100 evo input shaft to compare.

http://m.ebay.com/itm/400443975742?nav=SEARCH&sbk=1

http://m.ebay.com/itm/161121911008?nav=SEARCH&sbk=1

[ducatiz]

I have no idea if this helps for the new generation but here is a bookmark I saved which a guy details out the conversion for a 620, different parts and all I assume, but might help (especially page 3 with a diagram).

http://www.ukmonster.co.uk/monster/showthread.php?t=37403

that looks very do-able and surprisingly cheap