What has Ducati done differently on the 2008 S2R 1000 that gives it a 7500 mile service interval vs the 2007 and earlier models that require a 6000 mile service?
Nothing at all.
Some of the mechanics I've spoken to have said that 7500 is pushing it. The wife's monster needed it's service earlier than what the factory calls out. YMMV.
What they did was print different recommendations extending service intervals to make the overall cost of service less.
Was part of this loosening the valve clearance specs to allow for longer intervals?
Scott
Quote from: scott_araujo on November 05, 2009, 02:12:11 PM
Was part of this loosening the valve clearance specs to allow for longer intervals?
Scott
Yes.
The engine really hasn't changed, and the fact is a 2V Duc runs best with closers set at 0...regardless what the spec of the day is.
Now i could be completely wrong so correct me BUT while reading all up on S2R's before purchasing i stumbled into the aftermarket valve keepers made of better material that allowed longer the service interval to happen. I don't have the link but essentially from what i read the guy who created these, Ducati changed to this type of material to extend the service intervals.
The different metal keepers didn't wear down as fast thus allowing longer service intervals on the valves.
Quote from: jim_0068 on November 05, 2009, 05:03:37 PM
Now i could be completely wrong so correct me BUT while reading all up on S2R's before purchasing i stumbled into the aftermarket valve keepers made of better material that allowed longer the service interval to happen. I don't have the link but essentially from what i read the guy who created these, Ducati changed to this type of material to extend the service intervals.
The different metal keepers didn't wear down as fast thus allowing longer service intervals on the valves.
Are you referring to MBP collets?
Not only are they a different material, but a totally different design.
Ducati did rip off parts of that deign, but my understanding is it really hasn't worked as well as they hoped.
Even with a different design...why would oil suddenly last an extra 1500 miles...or belts an extra 3K?
It was strictly a marketing move to reduce
perceived maintenance costs IMO.
Quote from: rcelik on November 05, 2009, 10:32:34 AM
What has Ducati done differently on the 2008 S2R 1000 that gives it a 7500 mile service interval vs the 2007 and earlier models that require a 6000 mile service?
Ducati is simply trying to conform to the japanese standard maintenance.
The MBP collets can extend valve service intervals from what I've read, especially once the valves and collets both seat well. But the price seems steep: ~$120 for the collets on a 2V, plus shims if you need to adjust ($15-25 ea.), plus figure one more round of shims once they seat. Seems pricey. Stock collets do break sometimes but are only $4 ea. to replace and also seat after a while, just have to remember to put them in the same way they came out.
Also, I'm with DP. The valves are one thing. That doesn't change the oil, belt, and other intervals. I know many auto manufactures now suggest longer oil life of say 5000-7500 miles on new engines. Ducati air cooled are not new style engines, they run hot and have a large temp range. I still change oil and filter every 3000. Maybe water cooled can go longer.
And yeah, I like my 2V closers nice and snug, seems to run smoother. Also, my collets that shattered were on valves that were 'in spec' according to the new rules but looser than I like.
Scott
Quote from: scott_araujo on November 06, 2009, 08:09:05 AM
The MBP collets can extend valve service intervals from what I've read, especially once the valves and collets both seat well. But the price seems steep: ~$120 for the collets on a 2V, plus shims if you need to adjust ($15-25 ea.), plus figure one more round of shims once they seat. Seems pricey. Stock collets do break sometimes but are only $4 ea. to replace and also seat after a while, just have to remember to put them in the same way they came out.
Also, I'm with DP. The valves are one thing. That doesn't change the oil, belt, and other intervals. I know many auto manufactures now suggest longer oil life of say 5000-7500 miles on new engines. Ducati air cooled are not new style engines, they run hot and have a large temp range. I still change oil and filter every 3000. Maybe water cooled can go longer.
And yeah, I like my 2V closers nice and snug, seems to run smoother. Also, my collets that shattered were on valves that were 'in spec' according to the new rules but looser than I like.
Scott
I was just talking about the valve clearances, not anything else.
Then yup, the MBPs will help if that's what you're after. For me it's not worth the initial outlay of cash, ~$120 for the MBPs vs. ~$32 if I needed to replace all the stock collets. I'm cheap and I don't mind adjusting the valves now and again.
Scott