M103 Valve Seals and Cylinder Pressurization
Hey guys -
I am lining up everything I need to replace the valve seals on my M103. In other threads I have seen on the issue, the cylinders are pressurized using shop air. Why is that? Is it critical?
If I don't need it, then I can replace them next weekend. If I need to get that, it could be another few months until I start working and can buy an air compressor.
Thanks!
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