Valve guide seals

[ejfluhr@austin.ibm.com (Fluhr)]

My 2226cc I5 blows a nice puff of blue smoke when starting up in the morning.
As I understand it, this is due to leaking valve guide oil seals.

Are these easily replaced with the head still in the engine?

As I have yet to do my timing belt/valve cover gasket job, I was wondering
if it is worth the effort to pull the cam and lifters and replace the
seals at the same time.  If so, what special tools are required?
My father mentioned using the air compressor to keep the valves from falling
into the combustion chamber.  Is this feasible?

Is there any detriment to just leaving it as-is or benefit from changing
the seals?  (aside from the knowledge that my engine leaks <sniffle> or
doesn't)

Thanks,
Eric
'85 Coupe GT
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Eric J. Fluhr                                Email:  ejfluhr@austin.ibm.com
630FP Logic/Circuit Design                   Phone:  (512) 838-7589
IBM Microelectronics Div.                    Austin, TX