I haven't reeplaced a VCG the entire time I've owned my bike (55k) and never had a leak. They're metal and designed to be reused. Even the first time I had my valves done, the mechanic told me that I should'nt need to replace them, unless they're damaged (like me).
ok something doesnt seem right. my unloaded gap had no clearance and my loaded gap(pushing down on the the closing rocker with screwdriver) had .011mm. so my unloaded gap is my openers right? and my loaded gap subtracted from my unloaded gap is my closers right? how can i subtract .011 from .000?????????
i dont think im suppose to be dealing with negatives. then again its probably just my inexperience. can one of you DUCATI TECH WIZARDS please help? it would be much appreciated.
this was the same on zina's new 2000 m900ie as well as our new 2001 mh900e. BOTH bikes had a valve that was bascially held open - and they came that way from Ducati SpA! THIS is why i suggest an initial ideal valve adjustment at 1000 miles. not a "check" but an actual adjustment to old world "happy" specs.
what i found on both of these bikes is that the shims seem to have been swapped between the inlet and exhaust valves on the front/horizontal head. when swapped back, they produced "factory tolerances" which i still don't like.
so, it is possible to have 0 opening clearance and much closing clearance. the only way to adjust these valves is to repeatedly adjust them until the readings ar erelatively small.
i suggest having an experienced mechanic help you with this...
this is the very first time ive seen my valves. i had the dealer do the valve adjustment at 6000 miles. i was just checking my clearances for the heck of it, and like i wrote up top, they dont seem correct. i have had some problems with my bike after getting some work done at the dealer in the past. not to mention the price, i plan to do as much of my own work as possible.
i am a novice mechanic and im eager to learn all i can about my bike. i believe ive read or downloaded all valuable material i can off the internet(short of a service manual). id much rather be working on my bike right now then on these boards(not that i dont like you guys), but you know what i mean. id for sure rather be riding than anything else.
yes ive read some on your web site. thanks for all the info. i have a question for you, can you purchase a shim kit for less than $1000? or am i just gonna have to get all needed shims from my dealer as i need them?
how much damage will occur riding with valves out of adjustment? i came up with .004" on an intake closer.