Originally Posted by Clemson88

I use a series of rubber hoses with duct tape wrapped around the end as a seal ring. Wrapping a few rounds of tape on a 5/8" hose makes it fit tight into the vac hose. The tape forms a really good seal which isn't necessary but it is quite efficient.

I never blow anything into a cylinder on purpose. I use heavy grease on the reamer when I do glowplugs. Most of the carbon comes out then.

Turning the engine over after reaming glow plug hole blows most of what the greasy reamer misses.