... so if you've got a leaky one, don't think it's too hard of a task.
Started with a little pooling under the belt covers. Then the tell-tale Clutch side case streaking and drip on the garage floor. Been letting it go for almost 2 years.
Put it on a rear stand. Get it at TDC. Take the belts off. Use a puller to get the cam gears off. Out with the old seal, in with the new. (I put a little RTV sealant around the outside of the new one before I pushed it in place.) Easy squeezy. [thumbsup]
A few things to point out. Woodruf keys that index the cam gears to the shaft, and a circlip that goes around the shaft just before the seal. Nothing really special about them, just worth mentioning. Don't lose them.
Also, you will want to replace the locking nut that holds everything together, rather than re-using the old one. I mean... I guess you could re-use it but...
Total parts (seal, nut, washer) were about $20 at the dealership.
Now the oil in my bike stays IN my bike. :)
the cam pulley nut: always replace that sucker.
i just tapped the locking pieces (4) back in to less than bolt diameter [thumbsup]
I've been neglecting vertical cam seal long enough. Not bad, just a few drops. Doesn't even run down the engine, dust more than holds it in place :P
What did you use to take the special nut off? All the tools I see are around $50 and up. I'm thinking maybe just get the right size socket and cut it into a tool with a Dremel. Got to get a puller that will fit into the rubber belt case. I've got the adjustable pulleys and there are no holes to attach to.
Scott
Got the parts today. I bought a socket that I'm going to cut into a tool to remove and install the special lock nuts.
Scott
Quote from: scott_araujo on May 01, 2010, 06:35:29 PM
Got the parts today. I bought a socket that I'm going to cut into a tool to remove and install the special lock nuts.
Scott
Could you do a picture documentation? :)
Yeah really.
Im needing to pull the cam pulleys myself and noticed the need for a special tool.
I drew on up and planned to machine one, but if they're cheap, I'd just buy one.
What's the DIY way to get these things off?
For Rule62's pulley removal, the nut was removed by a tool that was made specifically for the job. I think it was the Ducati tool and yup they are expensive for something you will hardly ever use. The pulleys were pulled by threading two bolts (can't remember what size) into the pulley itself and then using pulley and gear puller, you grab the heads of the bolts and pull her off.
Huh.
Mine aren't like that.
The nuts that hold mine on are round, with 4 slots 90* apart. They're about 4 or 4.5mm wide.
Quote from: Monsterlover on May 03, 2010, 01:59:30 PM
Huh.
Mine aren't like that.
The nuts that hold mine on are round, with 4 slots 90* apart. They're about 4 or 4.5mm wide.
The nut is as you described. It is a castle nut with the 4 slots, and for that a special tool was used. I don't see why one couldn't be made fairly easily though.
I looked around and the lowest prices I could find for the tool were $50-60. I'm sure you could take the nuts off with a Vice-Grip but putting them on to the right torque would be tough that way. The socket I bought was $5. I'm sure it will take a while to cut and shape it with a Dremel, tool steel is hard.
My cam pulleys are adjustable and don't have any exposed threaded holes. There are three, but they hold the two parts of the adjustable pulley together. I spent a lot of time getting them set right and don't feel like loosening them up and having to reset them. I'll see if I can either just pull them off or build something that gets behind the pulley.
Scott
Nobody check the tutorials thread. :-\
I made a tutorial about making the pully nut tool a while ago. Actually... It was almost exactly a year ago. Lol
http://ducatimonsterforum.org/index.php?topic=22048.0 (http://ducatimonsterforum.org/index.php?topic=22048.0)
I'm usually a "make your own tool" kinda guy, but cut my losses on this one and bought a cam nut tool from Desmotimes for $40. http://desmotimes.com/ (http://desmotimes.com/)
$40 versus.... $3
Quote from: a m on May 03, 2010, 06:34:51 PM
$40 versus.... $3
At $40 and from LT I'd consider it, but he's out of stock :(
erkishhorde, of course we don't search! Then who would you make fun of? Beautiful work by the way. Not sure mine will come out so clean, I can only hope. At least there's no point in doing a tutorial now that yours is up.
On a side note, my friend has an old Honda and had to thin the walls of a spark plug socket to get it into the well. It's a very tight fit. He clamped the socket in his drill press and attacked it from the outside with a grinder. Looks ugly as sin but works. I'm pretty sure mine won't look that ugly at least.
Scott
Ok, I made the tool and it didn't look that ugly. It also didn't work too well :( I made iy by grinding down an 18mm socket. It fit nicely but when it came time to remove the nut, the prongs bent. It was on really tight. I ended up using a torch and and then a hammer and chisel to get it off. It finally let go. I managed to straighten the prongs enough to get the new nut installed. It bent again and shredded one of the key ways a little. I didn't realize the torque spec on those nuts is 52 ft lbs! Next time I'll just buy the tool.
The rest of the repair was simple. Cam pulley came right off, easy out with the old seal, easy in with the new. All back together now and belts re-tensioned to boot.
Scott
Anyone care to post up an easy way to get that little clip off from behind the pulley? I've done two bikes now and that little clip is the hardest part...takes longer than all other steps combined.
what clip are you talking about?
I just swapped pulleys from one engine to another this past weekend and didn't notice any clips.
I even swapped over the plastic backing plates. . .
There was a wire clip in a groove on the shaft behind the drive pulleys that are removed to replace the layshaft seal. My DS1000 motor and a friends Monster 695 both had 'em.
ooohh kay.
gotcha
That's called a Woodruff key.
http://en.wikipedia.org/wiki/Key_(engineering)#Woodruff_keys (http://en.wikipedia.org/wiki/Key_(engineering)#Woodruff_keys)
Two ways to get it out:
1) Tap lightly or press down on one end and if it moves freely the other end will lever up and you can grab it.
2) Put a very small screwdriver under the front edge, tap very lightly with a hammer. It may go flying.
It's also a pain to get back in, tight fit.
Scott
I 'm not sure if the newer motors are different or what, but I know what a woodruff key is and besides the two of those there are on that shaft, there is also a circular clip that fits in a groove around the shaft behind the pulleys and in front of the seal. No problem, I've managed to remove two of them...mostly pointing it out so people know what to expect when diving into this repair.
Yes, sorry, that's there too. I think that lies against a thrust washer deeper in to keep the camshaft located properly left to right. I think it's just a spring steel snap ring with no ears to grab, tough to get off.
Scott
Quote from: scott_araujo on May 17, 2010, 10:26:48 PM
Ok, I made the tool and it didn't look that ugly. It also didn't work too well :( I made iy by grinding down an 18mm socket. It fit nicely but when it came time to remove the nut, the prongs bent. It was on really tight. I ended up using a torch and and then a hammer and chisel to get it off. It finally let go. I managed to straighten the prongs enough to get the new nut installed. It bent again and shredded one of the key ways a little. I didn't realize the torque spec on those nuts is 52 ft lbs! Next time I'll just buy the tool.
The rest of the repair was simple. Cam pulley came right off, easy out with the old seal, easy in with the new. All back together now and belts re-tensioned to boot.
Scott
I made a note of that in my tutorial. It's damn tight!
I should have read your tutorial more thoroughly. ;)
Show's your an engineer. Reading is for schmucks. Try it yourself and learn by doing. Or as the Cal Poly motto goes: Learn by make the beast with two backsing up. ;D
Quote from: erkishhorde on May 19, 2010, 06:23:14 PM
Show's your an engineer. Reading is for schmucks. Try it yourself and learn by doing. Or as the Cal Poly motto goes: Learn by make the beast with two backsing up. ;D
Engineers just think they make the beast with two backsing know everything. [roll]
;D
Nah, we just never trust anyone else's opinion. ;)