There are tools to do just that. Doing one cylinder at a time, you remove a spark plug and install a quick disconnect air fitting in its place. Connect your shop air compressor line to it and maintain air pressure, 100 psi is good. The air pressure will hold the valve in place during this procedure. Now you will need the proper tool to compress the valve spring and remove the retainers (keys) then the valve spring. Remove the old valve seal and replace with a new one, then reverse procedure to install spring and keys. Your local auto parts store should have the tools you need for sale or rent.
It is used to replace valve seals on many automotive engines without removing the cylinder head from the block.
No the valve seals are between the cam and the head, under the valve spring
well the valve seals are very difficult to do on the truck because of the fact I haven't seen a tool out there that can remove the valve spring with having the head still on this vehicle and working for suzuki i have had to take every head off but it may depend on what motor your working on 2.0 2.5 2.7
The seals sit in the head of the motor. Each cylinder has 4 valves, 2 intake and 2 output valves, each valve has a semi rubber/metal seal that keeps oil from leaking into the combustion chamber. Replacing the seals requires removing the head from the motorblock.
it would be better to go ahead and replace it, but if you dont its ok.
sounds like a small block chevy...the best fix is to replace the seals. they make tools that allow you to pump air into a cylinder so you can repalce the valve seal without removing the head.
Lots of labor but can be done without removing heads. If doing it yourself, not much cost -- seals plus valve cover gaskets. Shop cost if not doing it yourself -- prohibitive.
The Chevrolet 350 stock "O" ring valve seals attach to the valves not the heads but, yes the head assembly has valve seals.
No. The valve springs can remain on the head when removing the head.
can you change the injector tubes and seals without removing the cylinder head on a 1.7 cdti Vauxhall combi and is it much of a job
did you check the condition of the valve stem seals while you had the head off? bad valve stem seals will allow oil to leak into inlet manifold . the head needs to be off to change valve stem seals
to do this ,( if i understand your question), the oil valve seals are located on each valve inside the valve springs. To get to them you must remove the head and use a spring compression tool to release the valve springs to get to them.They have to be replaced ,there is no " repair ".Yo can also pressurize each spark plug hole with compressed air to keep the valves up so you can replace the seals, this will save you from removing the head as long as the valve does not drop into the piston chamber.Hope this helps.