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Checking Valve shims

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Moderators: paul doran, Taffus, KeithZ1R, chrisu

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paul doran
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#16 PostAuthor: paul doran » Tue Sep 13, 2011 4:25 pm

that is a very well explained method of reshimming Chris

shims are not too difficult to do but some People get a little scared at the thought of it this may help them hopefully
way too many Zeds

sid123
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#17 PostAuthor: sid123 » Tue Sep 13, 2011 6:11 pm

DO NOT use ground shims they can fracture and cause no end of damage !!! ( also stated in the notes on Kawasakio shim selection chart )

The shims are hardened steel and the grinding creates stress raising points on the surface even if face down.

Sid
whoosh im gone

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KeithZ1R
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#18 PostAuthor: KeithZ1R » Tue Sep 13, 2011 7:05 pm

Nicely Illustrated Chris :up few myths busted there, hopefully it will inspire a few people to have a go at what is a simple but satisfying task :up
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#19 PostAuthor: sanderz » Wed Sep 14, 2011 9:18 pm

sid123 wrote:DO NOT use ground shims they can fracture and cause no end of damage !!! ( also stated in the notes on Kawasakio shim selection chart )

The shims are hardened steel and the grinding creates stress raising points on the surface even if face down.

Sid


Confirms what i thought, thanks for the imput Sid. I have now changed the 7 ground shims for new ones (brand spankers) Now i know whats in there :up
Wots up DOHC

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#20 PostAuthor: chrisu » Thu Sep 15, 2011 4:23 pm

i'm getting quite good at this - have done a z1 and a z900 in the last few weeks.

FreddaAbborre
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#21 PostAuthor: FreddaAbborre » Mon Jul 30, 2012 8:58 pm

Very good guide!

But how to find the shim tool?

I've searched the bay but only finding tools like this:

Image

Image

How to do it with them? Have seen the description, but can't figure out the how to remove the shim when the second tool is inserted (as I understands it puching onto the shim).

Edit: If I would have looked further when I googled the pictures I'd seen the tool in use...

Image
Last edited by FreddaAbborre on Mon Jul 30, 2012 9:11 pm, edited 1 time in total.
Z1 Moto Martin
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chrisu
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#22 PostAuthor: chrisu » Mon Jul 30, 2012 9:04 pm

Z1 enterprises sell them

http://www.z1enterprises.com/ItemDetails.aspx?item=57001-113

I got mine from Jeff in 1994

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chrisNI
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Re: Shims

#23 PostAuthor: chrisNI » Mon Jul 30, 2012 10:22 pm

Steven Cooke wrote:
The tool doesn't hold the valve down so far as to make contact and you only rotate the camshaft enough to install the tool then a little further so you can remove the shim. You have to check the clearance prior to installing the tool, the tool is purely for the removal/replacement of the shim.



If you have high lift cams with shim over bucket and you are using the Kawasaki tool the valves may not hit the piston but they can hit each other depending on lift, duration and overlap, as I found out the hard way a few weeks before going to Germany. My cams are ony .389s. If in doubt look down the plug hole using a torch to see what the valves are doing as you turn the cam to remove the shim. Most higher lift cams use shim under bucket and you'd be taking the cams out anyway so it's not an issue.

xsfool
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camshaft position during valve clearance checks

#24 PostAuthor: xsfool » Mon Aug 13, 2012 1:19 pm

Apologies if this is a repeat remark covered elsewhere.
But checking the clearances with the camlobe pointing away from the shim gives smaller clearance results than doing the check with the lobe at 90 degrees to the shim.
The clymer manual for my z1r isnt very clear, making remarks about sprocket marks that are not obvious on my bike.

where should I take the clearances?

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Pigford
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Re: camshaft position during valve clearance checks

#25 PostAuthor: Pigford » Mon Aug 13, 2012 2:24 pm

xsfool wrote:Apologies if this is a repeat remark covered elsewhere.
But checking the clearances with the camlobe pointing away from the shim gives smaller clearance results than doing the check with the lobe at 90 degrees to the shim.
The clymer manual for my z1r isnt very clear, making remarks about sprocket marks that are not obvious on my bike.

where should I take the clearances?


Measure the largest clearance value - usually with lobe pointing 180 degs away from bucket, axis in line with valve stem :wink:

As a side not, Suzook GSX's state clearances to be measured with lobes pointing vertical - not in line with valve stems :roll:
And on the 7th day... Zeds were created!

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jimmock
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#26 PostAuthor: jimmock » Mon Aug 13, 2012 2:33 pm

Guyz,

I'm all shimmed out!!!


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malc87
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#27 PostAuthor: malc87 » Mon Aug 13, 2012 3:03 pm

excellent piece that :D
I had no idea how to do it as my triples dont have these valve thingys :wink:

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Taffus
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#28 PostAuthor: Taffus » Mon Aug 13, 2012 3:58 pm

Somebody was asking how to do this on Facebook, i have posted a link to this
"You should see the damage, bronze. Huh? metal damage, brain damage. Heheheh. You listen bronze. I am the Nightrider. I'm a fuel injected suicide machine. I am the rocker, I am the roller, I am the out-of-controller! I'm the Nightrider, baby, "

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#29 PostAuthor: xsfool » Tue Aug 14, 2012 7:17 am

that was me taffus, trying to get as many opinions as poss :)

chrisu
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#30 PostAuthor: chrisu » Tue Aug 14, 2012 8:37 am

now you know................ :)


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