CAN-AM (BRP) Discussions about CAN-AM ATVs.

Valve Adjustments Shim Buckets

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Old May 30, 2003 | 01:44 AM
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DaSandBomb's Avatar
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Default Valve Adjustments Shim Buckets

Ok, I've read the write up on the Glamis site, the question I have is to get the shims out of the bucket to measure them, do I need to use a chain brake for the Cam chain and go thru this proceedure,or is there a way to slip them out by loosing the cam shafts? Seems like a lot of work and possible trouble to pull everything apart. My Exaust are reading .004 and .006 but my Intake is so tight I can't get the .0015 under them. This most likely is not good[img]i/expressions/face-icon-small-sad.gif[/img].
I hope someone has a nice trick to do this. Thanks.
 
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Old May 30, 2003 | 02:40 AM
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Default Valve Adjustments Shim Buckets

Most likely you will have to take the cams out. But sometimes you can get them out by tilting the cams and putting a strong type of magnet like an extendable one on the shims and pull. But the bucket may want to come up with it so if you have another person help you you might get them to separate without taking cams out. Good luck
 
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Old May 30, 2003 | 10:51 AM
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SANDMAN430's Avatar
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Default Valve Adjustments Shim Buckets

just pull all he carrier bolts and tilt the cams out don't try and break the chain you don't want to that. if the chain falls down don't worry use one of the extending magnets. other than that just pull the bucket and work the shim out and go shopping.
 
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Old May 30, 2003 | 12:02 PM
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Default Valve Adjustments Shim Buckets

LOCK the crank at TDC of compression stroke so when you put the cams back and line up the marks on their sprockets you KNOW its exactly right in time with the crank. find TDC of comp stroke by lining up the cam sprocket marks and having all 4 lobes facing out away from each other.
remove the cam chain tensioner and then remove the plastic guide between the sprockets.
now remove the cams, pull the buckets, and seperate the shims using a sewing needle. measure one at a time and mark stuff so you put stuff back in the right spot - don't assume the buckets are all the same thickness.
be certain to loc-tite the two bolts for the plastic chain guide when you reassemble.
 
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Old May 31, 2003 | 01:26 AM
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Default Valve Adjustments Shim Buckets

Thanks Guys, I was able to loosen the tensioner and get enough slack to use a dental pick to pop out the shims without messing with the chain. After checking with a micrometer, I found 3 of them to be 2.3mm and 1 at 2.35, now it will be a guess on the intakes, I could not get a .001" under them for a starting point.
Anyone know if these are commenly stocked at the dealer? our will I have to wait on an order.
 
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Old May 31, 2003 | 05:26 AM
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Default Valve Adjustments Shim Buckets

if you order, the fastest service I've found is from RWR, $5 each.
also, you can have a local machine shop grind them to the exact thickness you want for an even cheaper fee. I'm charged $15 to have a set of 4 ground, cheaper and faster.
 
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