When I got my kit there is a small round valve seat in the bag with the valve. I don't see a removable valve seat in the schematics. When I install it the valve rod is recessed by the magazine port. Does it not belong in the kit? Thanks
Power block and plenum upgrade kit mk2 impact
- Thread starter Joes41
- Start date
I'm wondering if mine just came out. Do you know if your valve rod is flush or recessed to the end of the valve when you look in where the magazine fits?
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OK thanks guys. So the new valve housing I got with the power block and 72cc pp kit has a removable valve seat. Must have not been in to good and came out.
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The valve rod should be flush with the valve housing. If yours is pushed forward a bit its probably due to the hammer spring preload. If you lower your macro wheel I bet it comes rearward a bit.
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I thought the same thing but I think they changed the depth of the seat or something because I didn't have the c1 on or spring in when I installed mine and it was recessed with the valve up against the seat
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I got my kit ( Power Block + 720 c Plenum) for my MK2 about early Feb. The Valve House is a single piece (no separate valve seat insert). The large 10mm SST sets crew was missing from a box, I called my dealer and he knew about it... he re-sent me one. Looks like FX changed the BOM through the evolution of the Powerblock kit?
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Interesting for sure. I installed mine about 6 weeks ago and ordered new from UA, but who knows there are so many changes and updates. 
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mine isn't with the power block that might make a difference just the 720 plenum I ported the block out and opened the exhaust port on the valve to other wise my block is stock from mk2 not the power block
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I had to replace the peek puppet was pretty banged up with some ~10K high power cycles. My Rear Block was also ported and I was thinking what to do, finally decided to order a full kit "Power Block" but only when I got the kit only I could measure my porting allows more air flow. Not sure if the two blocks are interchangeable, the orings are relocated ...
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OK so finally got the time to sort this all out and wanted to thank everyone for the replies. I talked to a tech guy at FX USA and he confirmed that the latest 72cc plenums do have a removable valve seat. Because of the bit of extra thickness the valve rod is recessed on the magazine end. Hopefully they add it to the schematics so people can figure out what's what.
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Uhm, I didn't knew that or at least I have not seen it that the cone is a separate piece. But honestly ... kind a like the idea easier to modify = port it if you need even more power.
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