Valve stem oil seals?

[jimbothe]

Hi all,anyone have any ideas on how hard it is to do the above on my FJ12? Is it a head off job or can i get away with just the top part and a special tool?

Help really much appreciated on this one as it's getting embarrassing on start up
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[SoulRider]

Its not that bad honest
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[Walloper]

I never opened the attachment but I thought if the seal is on the valve stem it will require the springs to be removed to get the seal off. This involves ripping off the head so you can compress the springs.
Or maybe not.
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[Odie]

Have a tool at home that allows you to change the seals with the head still on, it forces compressed air into the cylinder, thus keeping the valve closed.
You have to take the cams out and have good valve seats to start with, but it works, used it 3 times on different bikes, its a god send!
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[Finglonga]

I use a coat hanger(metal one) pushed through the spark plug hole and bent to stop the valve dripping into the engine. If you make sure the piston is at the top it wont fall in anyway.
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