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Aw man why does it have to be so hard??
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JimmyR
Ok I promise to be good in the future! As far as an Aussie shim club - great idea. Only issue might be that all the spare shims will tend to be 2.5 and larger and it seems that the shims that we need (well at least I need) are smaller.
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JimmyR
Ok, I had another go today after taking all the advice on board. I only have two valves that are out now - I'll be getting a couple of shims off a fella I know. I will be picking up a micrometer some time today but this morning took a punt that a couple of 2.5 shims I had were actually worn thinner and they were perfect for a couple of spots where 2.45 seemed too thin but 2.5 was apparently too big.
The frustrating bit is installing a shim which is supposed to be the answer only to find it's not. THAT is annoying! Hopefully the micrometer will sort that out.
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koolaid_kid
Just be patient and be glad your engine is shim over bucket. My GPz is shim under bucket, so I have to remove the cams every time I need to change shims.
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JimmyR
Wow that must suck! The other night I was watching a British car show called Wheeler Dealers. It's pretty lame but I just like watching blokes fixing stuff with wrenches. Anyway one episode they were working on an old English sportscar and he adjusted the tappets with a screwdriver. I guess the shims have the advantage that they won't come undone or change suddenly. But using a screwdriver sounds good to me!
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Are you also aware of the "X" shims? They are 'half-sizes', and are only available from the factory.
You said early on that a 2.5 had too little clearance, but a 2.45 had too much. It is possible that the 2.5 might have actually been a 2.50x, meaning that it would measure about 2.525. If you replace that with a 2.45, it would certainly appear to be too large of a jump. You can not order these "X" shims anywhere, you have to get lucky and find them in an engine to add to your stash.
Originally posted by JimmyR View Post... and he adjusted the tappets with a screwdriver. I guess the shims have the advantage that they won't come undone or change suddenly. But using a screwdriver sounds good to me!
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)
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FLHGSRay
When I did mine, the local Suzuki dealer swapped shims with me. No charge, although I did buy alot of parts from him.
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JimmyR
Actually my local Suzuki dealer is being very helpful. While he hasn't just done swaps with me he has got pretty close and apologises for having to charge the little he does! If anyone is in Western Australia I can highly recommend McCulloch Suzuki in Vic Park.
FWIW I haven't seen any "X" shims, but have used a couple of 2.5 shims that are undersize to good effect.
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SVSooke
So that was what that x meant.Now where is the silly thing.Cool I just learned something,always a good thing!
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7981GS
I have a bunch of x shims.
Typically, they mic .02 thicker than marked.
Example: 2.60x = 2.62
They very well might have started life at 2.625.
I even have some marked 2.58 and 2.78
Eric
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Originally posted by FLHGSRay View PostWhen I did mine, the local Suzuki dealer swapped shims with me. No charge, although I did buy alot of parts from him.
They use 29.0mm diameter shims, Suzuki uses 29.5mm shims. Not real easy to tell them apart without a measuring stick.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)
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