DS1k Variable Valve Timing

Speeddog · June 21, 2011, 06:32:47 PM

Slide Panda · June 21, 2011, 06:55:47 PM

Ouch

How 'varied' did it get?

Spidey · June 21, 2011, 07:17:37 PM

Quote from: Speeddog on June 21, 2011, 06:32:47 PM

Hmm . . .mine looks different than that. I should probably take it into the shop to have them check it out.

DS VTEC -- schweet.

Speeddog · June 21, 2011, 07:45:12 PM

29k miles, belts done @18k 10/2009.
Valves last done @ 8k.... considering that, they're not out too far.

Doesn't seem to have hurt anything.

Turning the cam pulley with the belt on like in the pic, just a couple degrees of freeplay at the cam, maybe 5 degrees.

WetDuc · June 22, 2011, 04:25:42 AM

Ahhh, scary!
Is that what happens when the belts are too tight?

bikepilot · June 22, 2011, 06:32:44 AM

Very fortunate the belt didn't skip a few teeth on the pulley.

WetDuc, I think that's what happens when the bearings in the idler pully go bad (they appear to be rusty). I doubt its down to belt tension.

Slide Panda · June 22, 2011, 06:40:48 AM

The DS1k got revised recommendations for their belt tensions. From the factory they were too tight, leading to failures. Might have started with too-tight belts. But yeah rusty dusty for sure.

He Man · June 22, 2011, 07:38:08 AM

did you see any HP gain on the butt dyno?

danaid · June 22, 2011, 11:14:25 AM

Quote from: Spidey on June 21, 2011, 07:17:37 PM

Did this bike have open style belt covers? I like the rizoma style but I have always wondered about dirt and moisture getting in and causing problems. $:-\$
Or is this rare, there are many bikes with open belt covers and clutch covers?

Speeddog · June 22, 2011, 12:05:14 PM

Quote from: danaid on June 22, 2011, 11:14:25 AM
Did this bike have open style belt covers? I like the rizoma style but I have always wondered about dirt and moisture getting in and causing problems. $:-\$
Or is this rare, there are many bikes with open belt covers and clutch covers?

Regular OEM covers, not open.

The bike does stay outdoors a lot, AFAIK, and is fairly close to the beach.

aaronb · June 22, 2011, 03:57:30 PM

did the roller actually cut into the boss? how long did he ride it like that?

Speeddog · June 22, 2011, 05:26:00 PM

Quote from: aaronb on June 22, 2011, 03:57:30 PM
did the roller actually cut into the boss? how long did he ride it like that?

Roller skimmed a bit of the boss on the cylinder, but the important part was protected by the inner race.
Roller cut into the inner race a bit too, but no big deal.

No idea how long it ran that way.

WTSDS · June 22, 2011, 08:42:36 PM

Appears to be a bit diff to my 2V but I squirted some grease into my fixed idler bearings and all 4 of the adjustables.
Used a 1 ml. medical syringe, slipped the needle in between the central post and the inner lip of the rubber seals.

Took 'em all off the cyl wall so as to get access to the " inside" seals.

They don't exactly spin freely after the grease charge because the rubber seals drag a bit, but they certainly turn MUCH easier than before.

Sealed bearings come new with only a tiny amount of grease.

vaclav · June 24, 2011, 04:53:15 PM

What kind of grease?

WTSDS · June 24, 2011, 09:29:09 PM

White Lithium Grease, water insoluble, from Plews - must be good, made in USA :-)

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DS1k Variable Valve Timing