Valve adjustment using bucket shims?

This topic contains 12 replies, has 0 voices, and was last updated by shane 16 years, 3 months ago.

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January 19, 2009 at 5:14 am #95717

shane
Member

Mkay so this isn’t going to be a question for the XR boys with their screw/locknut valve adjusters…(BASTARDS!)

I’ve notice that the clearances on the Vor have closed up a bit and I’m hoping that others have a similar valve adjustment system and have had a go…I HATE paying mechanics to fix my things…unless I really stuff something up!

Do I take the shims out, measure the gap and do a little maths before procuring the appropriate sized shim?

Is there some tool or something used to measure the shims and tell me the right size to put in?

OR…do I carefully file down the current shims to get the correct clearance?

I’m assuming that the valvs are wearing and as a result the clearances are closing up…might be time for a headjob…:woohoo:

January 19, 2009 at 6:39 am #118731

Greg
Member

What are you paying Shane, normally I charge a can a valve

I can and have done them before and be happy to help for a price! :laugh:

I also have the tooling.

TB

January 19, 2009 at 9:35 am #118733

shane
Member

Nah not valves…yet!
Just the shims (I hope!)
I can get the head off and the valves out (when I need to and I reckon itd be easier than the XR with it’s bloody fiddly cam chain tensioner), I can’t however machine the seats, so when I need them done…

In the meantime though, just needs some tips on how to collect the correct shim size.

January 19, 2009 at 9:40 am #118775

Greg
Member

No you bone head I charge a can for every valve adjusted!!!!!

Head doesnt need to come of, I will need to do check the clearances first before we need to work out what shims are needed

TB

January 19, 2009 at 9:47 am #118778

Paul Southwell
Member

Iv’e still got 4 you can do 4 cans deal;) :woohoo:

January 19, 2009 at 9:50 am #118781

Greg
Member

Tiny wrote:

Quote:

Iv’e still got 4 you can do 4 cans deal;) :woohoo:

You want an XR250 done that easy, 1 can per two valves adjusted

TB

January 19, 2009 at 9:52 am #118790

Paul Southwell
Member

SOLD:woohoo: :woohoo: :woohoo: :woohoo:

January 20, 2009 at 7:12 am #118791

shane
Member

You’re a boofhead TB! I can measure the valve clearances with my own cans! And XR clearances?? They’re so easy…you should be doing them for free!!!

Now..about them thar shims…

January 20, 2009 at 7:36 am #118848

Greg
Member

Ok what are your clearances, what are the clearance specs?

TB

January 20, 2009 at 8:14 am #118853

Anonymous

Sweet, you can do mine too TB :laugh:

January 20, 2009 at 8:15 am #118732

adam
Member

Here is a number of steps to you should be able to follow.Unfortunatly I am a qualified Engine Recondtioner and forced to work with hundreds of these shims every week so I will make it simple because it is.

Measure clearance with feeler guage

Write clearances and which valve on paper

Remove T/Chain tensioner, stuff a rag down front of engine so you don’t drop bits down there (if you do its all over)

Remove cam gears and cams

remove shims and bucket with a magnet, keep them in order

measure with digital vernier or micrometer, write sizes next to clearances

You should be able to do the math from here

You will need your bike manual to know how to reset timing chain tensioner and timing marks on cam gears with engine on top dead centre

A magnet to pick up shims buy from Repco or an auto shop

a set of digital verniers from auto shop $30 – $200

a set of feeler guages, talk to Ballards or auto shop

please reply if you have any questions

wr going great-bald tyre(fun:ohmy: )

January 20, 2009 at 11:16 am #118859

Greg
Member

wr450 wrote:

Quote:

Here is a number of steps to you should be able to follow.Unfortunatly I am a qualified Engine Recondtioner and forced to work with hundreds of these shims every week so I will make it simple because it is.

Measure clearance with feeler guage

Write clearances and which valve on paper

Remove T/Chain tensioner, stuff a rag down front of engine so you don’t drop bits down there (if you do its all over)

Remove cam gears and cams

remove shims and bucket with a magnet, keep them in order

measure with digital vernier or micrometer, write sizes next to clearances

You should be able to do the math from here

You will need your bike manual to know how to reset timing chain tensioner and timing marks on cam gears with engine on top dead centre

A magnet to pick up shims buy from Repco or an auto shop

a set of digital verniers from auto shop $30 – $200

a set of feeler guages, talk to Ballards or auto shop

please reply if you have any questions

wr going great-bald tyre(fun:ohmy: )

Yup, got all those tools being that I am in the trade and thats pretty well how I would cover it, never done a VOR, but all the same so to speak, nuts and bolts up down round round (not a Honda)

TB

TB

January 21, 2009 at 6:04 am #118879

shane
Member

Thanks for that Mr WR450!

I need to purchase a micrometer and vernier I guess…good excuse to visit the tool shop!

Good thing about the Vor is, it’s gear driven and if onecompresses the valve springs the buckets come out with a ‘magnet on a stick’!!!

Clearances TB? I can’t remember…after the nxt ride I’ll pull the covers off and check them again, properly. (God I hop KTM o Hberg bucket shims fit!)
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Valve adjustment using bucket shims?