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Title: 696 valves in 695/800 heads Post by: suzyj on May 05, 2012, 02:47:01 PM Has anyone done this? The 696 valves are 44/38.5, vs 43/38 for the 695 and 800 heads.
Given that I've damaged my intake seat, would changing at least the intake valves for 696 ones be a goer? I know the cams aren't interchangeable, but I could go to 1000DS cams and get almost exactly the same lift and duration as a 696, or even 900 cams for, well, more of everything... Title: Re: 696 valves in 695/800 heads Post by: caperix on May 06, 2012, 06:55:12 AM I don't think the 1000ds cams will interchange as well as they are made simialr to the 696 cams. I have also heard that the 900 cams have a smaller base circle so you would need very large shims to get them to work. What about swapping a whole 696 head? Other than the change in location for the ECU oil temp sensor that is a possible option.
Title: Re: 696 valves in 695/800 heads Post by: brad black on May 06, 2012, 03:30:40 PM ian has some 44 on ebay now - italsparesducati
if you run original cams you'll need to shorten them between the tip and collet groove i'd expect. Title: Re: 696 valves in 695/800 heads Post by: Raux on May 07, 2012, 01:47:26 AM are 695 8mm or 7mm valves? 696 are 7mm
Title: Re: 696 valves in 695/800 heads Post by: suzyj on May 07, 2012, 02:10:46 AM are 695 8mm or 7mm valves? 696 are 7mm I can't speak for all 695s (the service manual says they're 8mm), but mine (07 model) are definitely 7mm. Title: Re: 696 valves in 695/800 heads Post by: brad black on May 07, 2012, 03:45:51 AM just ream the giudes to 8mm.
see, all my engineering has worn off. Title: Re: 696 valves in 695/800 heads Post by: Speeddog on May 07, 2012, 10:12:36 AM 696 heads are DS1000 style exhaust ports, so I suspect the 695 exhaust wouldn't fit.
But I haven't done it, so there you go. 696 intake is shown as 21010752B, ~$78 US, I was expecting about $100 more than that.... DS1k, all water-cooled Monsters, and all Monsters '07 and later are 7mm valve stems. Title: Re: 696 valves in 695/800 heads Post by: suzyj on May 07, 2012, 06:10:38 PM What's the difference with DS cams and ports? Are the corresponding valves longer? Shorter? If they're longer, I imagine it wouldn't be too hard to machine them to length and put a new closer groove in them...
Gotta say, I'm loving this. I checked my valves for runout this morning (I did it on our tool-room mill, with a 7mm collet), and they're between 0.02 and 0.04mm - Between that and the pitting, I'll just replace the lot. For the exhaust, I think I'll stick with 695/800 ones, but for the inlets I think I'll go for 696 ones. If they're unsuitable, I guess I could always just stick them on ebay. Title: Re: 696 valves in 695/800 heads Post by: Speeddog on May 07, 2012, 06:20:30 PM DS/696/796/1100 heads have shorter exhaust ports, so the pipes are correspondingly longer, or thereabouts.
DS/696/796/1100 cams are plain bearing instead of ball bearing. |