O-ring recess machining

[mtt.tr]

Are you doing it on CNC? If not then any chamfer tool would have to be the right diameter for each section. PITA to do on a manual without a form tool I would think. Yes doable but time consuming.

Will certainly require lots of agonisong measuring

 

[scottmk1]

Here's where I'm at. I tried a conical end mill to do the 15 degree taper but it chatters too much so I think I'll get the boring head out and just finish the taper.

 

[scottmk1]

Finished, I drilled and reamed the bores that take the cartridge valves so hopefully that's good enough.

 

[AndersK]

Looks like the sealing surfaces came out with a good finnish. Is it aluminium now?

If you assemble the manifolds soak the cartridges in oil before putting them in. Remove them once and check seals before final assembly.

 

[scottmk1]

Looks like the sealing surfaces came out with a good finnish. Is it aluminium now?

If you assemble the manifolds soak the cartridges in oil before putting them in. Remove them once and check seals before final assembly.

Yes they are aluminium, they always were. The original one's are aluminium too.

I'll give the cartridges a good soaking in oil before I fit them.

 

[AndersK]

Thought the original ones were cast iron from the looks

 

[scottmk1]

Thought the original ones were cast iron from the looks

Yeh they were pretty rough, I thought they had been dragged out of the sea. It turns out they are off a Powerfab mini digger.

 

[Hood]

Yeh they were pretty rough, I thought they had been dragged out of the sea. It turns out they are off a Powerfab mini digger.

Often see the likes of that on the boats, water(especially salt), aluminium and steel do not mix well, especially for the aluminium

 

[scottmk1]

Well the person I made the valve blocks for has fitted them and reported back that everything is working fine now. Always nice to know it's been a success!