Integrated valve seat

[ozarkair]

Can someone share or direct me to pictures of an integrated valve seat block vs. non integrated block for an FX impact?

 

[heavy-impact]

It's integrated into the valve housing, not the rear block. I can't find the pic but I know there is one here. The search function is terrible now.

 

[ozarkair]

Thanks, I havent taken one apart yet, just trying to see what I am in for.

 

[mtnGhost]

@ozarkair - apparently I did still have photos before I did surgery on mine..

My bad, thought they disappeared when i looked for them (I was in the wrong photos folder)

 

[ozarkair]

Are people boring them out?

Machining them away to make replaceable valve seats?

 

[mtnGhost]

Are people boring them out?

Machining them away to make replaceable valve seats?

That would be counter productive. Less parts to fail in this design, stronger as well

 

[heavy-impact]

Are people boring them out?

Machining them away to make replaceable valve seats?

The replaceable ones were limited in size by the o-ring groove. Cutting it directly into the housing made it much stronger but you can't go much larger than 6.5mm because a larger valve poppet inside this housing restricts airflow. The valve housing would need to be larger in internal diameter to allow more air to pass. Increased valve size also takes increased force to open it which can result in more vibration being induced.