[s-cars] vavle guide seals

[Charlie Smith]

Earlier, Jim Green wrote:
> 
> As for holding the valve in place, I prefere to put the cyl you're working
> on to TC and let the piston hold the valve.  I have dropped a valve into the
> cyl using the compressed air metod and it took about an hr of fishing around
> with magnetic tools to fish it back up into place.

A very good way to hold the valves closed is to fill the combustion
chamber with rope.  Yeah.

With the piston down half way or so, insert a few feet of clean
rope, like 1/4" nylon rope, into the cylinder through the spark
plug hole.  Then turn the engine toward TDC until you have used
the piston to compress the rope up against the cylinder head.

Even though this sounds goofy, it will do a very good job of 
holding the valves closed.  Just make sure that the engine isn't
turned away from TDC while you have the valve springs off.

    - Charlie