My Valve specs (need a little help)

He Man · July 21, 2009, 08:50:25 PM

Horizontal Cylinder
Intake
Open Clearance: .05mm (.001968inch)
Closing CLearance: .055mm (.00216inch)
Exahust
Open clearance: .095mm (.00374inch)
Closing CLearance: .045mm (.00177inch)

Vertical Cylinder
Intake
Open Clearance: .10mm (.00393inch)
Closer: .05mm (.001968inch)
Exahust
Open Clearance: .09mm (.00354inch)
Closing CLearance: .07mm (.002755inch)

Does this look like i did it right? that damn keeper spring is really make the beast with two backsing annoying. i checked double check and triple checked it, then i did it the old fashion style checking underneath the closing shim. Are the DS1000 valve specs the same as the other 2v bikes?

my next question is, how do i order my shims? my micrometer isnt comming till this weekend. i assume, i just measure my shim, and add the value that would get my clearnaces to within range? (ie. if my gap is 2 inch, it should be 1 inch, and your shim is 1 inch, you just buy a 2 inch shim...) also it looks like the shim have a cavity in them from the EMS pic. Is there a specific way to measure the opener and closing shims?

redial posted these specs from ducati suite

QuoteThese are the valve specs for the 2v engine (Monster, SS, ST2 etc.) Note that these are on the tight side, it wouldn't
hurt to keep them on the high side (.004" for the intake openers, .005" for the exhaust openers, and .001" for the
closers). A clearance of .000" is possible, but very hard to obtain. .000" is a condition where there is no difference
between the loaded and unloaded gap. You cannot fit a feeler gauge in between the closing rocker (bottom) and the
closer shim, but can still turn the closer shim with your finger.

Intake openers: .003"-.004"
Exhaust openers: .004"-.005"

Intake closers: .000"-.001"
Exhaust closers: .000"-.001"

NOTE: 4v motors have a whole different set of clearances, on the looser side of the 2v. I am only listing them here as
reference.

Intake openers: .003"-.005"
Exhaust openers: .005"-.007"

Intake closers: .000"-.004"
Exhaust closers: .000"-.004"

in the article he says that you dont need to worry about closers until .0015"
im not sure what the acceptable tolerance for openers is

Speeddog · July 21, 2009, 10:14:09 PM

Can't tell if you did it right just by your numbers, the clearances *could* be what you've shown, they're not impossible.

You need a tool to measure the closers properly, EMS sells 'em.
Your micrometer spindle may fit down into the cavity on the opener shim, but it may not.

---------------

edit

From your thread on the belts, it sounds like you measured the valve clearances when the engine was still hot.
If you did, then it was just practice.

He Man · July 21, 2009, 10:21:57 PM

i did?

the rocker arms were already cold to the touch when i started working on em. I remember i got home at 830, called up el matador and at 10... and i had the valve covers open by 11. and fiddled with the belts and started measuing at 12.

how long should i let it cool down for? im not sure i

it only took about 30 mins to get the measurements, should i do them again to be safe?

Speeddog · July 21, 2009, 10:28:34 PM

Your post:
http://ducatimonsterforum.org/index.php?topic=27117.msg472392#msg472392

Sounded to me like the engine was still hot.

If it *was* cold, well, then you should be OK with the measurements you've done.

He Man · July 22, 2009, 05:30:46 PM

recheck the specs again today, they were the same as yesterday. the valves themselves were cool enough by the time i checked them.

im on ems site to order the closing measuring tool. but wht if the spindle on the micrometer doesnt fit the opener? how am i suppose to measure it then?

also why would certain clerances get tighter? it looks like i have to order a few new shims as well as sand a few down

heres what im thinking so far

Horizontal Cylinder

Intake
Open Clearance: .05mm (.001968inch) Should be.003”-.004” SAND DOWN
Closing CLearance: .055mm (.00216inch) Should be.000”-.001” PURCHASE

Exahust
Open clearance: .095mm (.00374inch) Should be.004”-.005” SANDDOWN
Closing CLearance: .045mm (.00177inch) Should be.000”-.001”PURCHASE

Vertical Cylinder
Intake
Open Clearance: .10mm (.00393inch) Should be.003”-.004” Getting close, purchase
Closer: .05mm (.001968inch) Should be.000”-.001” PURCHASE

Exahust
Open Clearance: .09mm (.00354inch) Should be.004”-.005” SANDDOWN
Closing CLearance: .07mm (.002755inch) Should be.000”-.001” PURCHASE

Speeddog · July 22, 2009, 09:30:39 PM

Assuming the valves were set correctly last time, valve and seat wear contribute to openers going tight and closers going loose.

IIRC, there may be a Kawasaki valve shim that'll fit in the openers, but I could be wrong.

Some folks don't have a problem with the spindle fitting in.
Or perhaps they grind the spindle down.
I'm not grinding on my Starrett.
I made a small tool for measuring them.

redial · July 23, 2009, 05:33:00 AM

these'll do the job

35 bucks from desmotimes.com
probably like 10 from harbor freight

i got mine for 20 from a carlisle show

good luck! post pics and a write up on the actual change if you have a free hand for a camera!

He Man · July 23, 2009, 03:18:27 PM

i bought something liek this

not quite sure what the difference between a micrometer and a caliper is. they operate differently, but they measure the same thing dont they? one just has a tumbler the other is a ruler.

Speeddog · July 23, 2009, 08:22:17 PM

Quote from: He Man on July 23, 2009, 03:18:27 PM
i bought something liek this ~~~

not quite sure what the difference between a micrometer and a caliper is. they operate differently, but they measure the same thing dont they? one just has a tumbler the other is a ruler.

The pic you posted is a micrometer.
redial posted a Caliper.

He Man · July 23, 2009, 08:30:20 PM

i know which one is which, but dont they both do the same thing? just one uses a spining handle, the other one is on a ruler.

Speeddog · July 23, 2009, 08:34:38 PM

They've both got the same basic purpose.

Caliper is more versatile, at a small cost in accuracy.

He Man · July 23, 2009, 08:37:38 PM

should i have gotten a caliper instead? the micrometer looked like the better choice

JimE · July 23, 2009, 09:33:12 PM

Both have their uses. In this case use the micrometer and measure the center of the shim. The shim will wear in the middle where the cam rubs. The caliper would give a false reading (depending on how worn your shim is) because it would read the thickest part at the edge. Probably not much of a difference, but a difference nonetheless.

He Man · July 24, 2009, 05:40:24 PM

quick question, i checked my valves after speeddog said they might of been innaccurate and i got the same readings...3 days later (today) i checked them again since i got my micrometer...the reads are ALL very very off. i have teh valves locked in place with a 6mm allen key through that hole on the side and the only way to get close to my original readings is to litterly lift the valve off the opener with my hands. itll stay this way for a bit and then settle back to the new readings which some are insanely tight...

any words of wisdom here?

ducpainter · July 24, 2009, 05:59:56 PM

Quote from: He Man on July 24, 2009, 05:40:24 PM
<snip>

any words of wisdom here?

quit trying to force things.

the feeler should slip in without lifting the rocker...

period.

News:

My Valve specs (need a little help)