Marauder Valve

[Sfttailrdr46]

Is there any difference between the Gen I marauder valve and the Gen II

[Motorhead]

Yes ....

Gen 1 valves for the .177 & .22 were FLAT SEAT types using an inner cavity sleeve that can be removed.  The gen 1 valves for the .25 cal had a RAISED SEAT and Non removable sleeve ( Actually body made with less internal diameter )

ALL the Gen 2 valves are now in basic design like the Gen 1 guns .25 cal valves using an even heavier poppet spring.

* The clearance slot for the trigger group screws was made longer in Gen 2 valves allowing there use in EITHER generation action.
Gen 1 valves WILL NOT work however in a Gen 2 action without modifing there screw clearance holes into a longer slot.

Otherwise valve in shape and fit work in either generation of action.

[Sfttailrdr46]

Yes ....

Gen 1 valves for the .177 & .22 were FLAT SEAT types using an inner cavity sleeve that can be removed.  The gen 1 valves for the .25 cal had a RAISED SEAT and Non removable sleeve ( Actually body made with less internal diameter )

ALL the Gen 2 valves are now in basic design like the Gen 1 guns .25 cal valves using an even heavier poppet spring.

* The clearance slot for the trigger group screws was made longer in Gen 2 valves allowing there use in EITHER generation action.
Gen 1 valves WILL NOT work however in a Gen 2 action without modifing there screw clearance holes into a longer slot.

Otherwise valve in shape and fit work in either generation of action.

Will the Cothran valve fit in a Gen II Marauder or will it require extensive refitting Right now I know the War valve is a drop in fit

[Motorhead]

Yes ....

Gen 1 valves for the .177 & .22 were FLAT SEAT types using an inner cavity sleeve that can be removed.  The gen 1 valves for the .25 cal had a RAISED SEAT and Non removable sleeve ( Actually body made with less internal diameter )

ALL the Gen 2 valves are now in basic design like the Gen 1 guns .25 cal valves using an even heavier poppet spring.

* The clearance slot for the trigger group screws was made longer in Gen 2 valves allowing there use in EITHER generation action.
Gen 1 valves WILL NOT work however in a Gen 2 action without modifing there screw clearance holes into a longer slot.

Otherwise valve in shape and fit work in either generation of action.

Will the Cothran valve fit in a Gen II Marauder or will it require extensive refitting Right now I know the War valve is a drop in fit

No clue
If his valve body has a clearance slot for EITHER trigger groups location within air tube .... YES will fit either.
What I'm reading tho is the use of a HUGE transfer port/hole in the valve body requiring the main tube and receiver BOTH needing to be altered.

[Sfttailrdr46]

  Decisions decisions 

[Privateer]

Any advantage to putting a Gen II Valve in a Gen I?
Crosman claims a 30% increase in shot count for the .177 and .22
Is that the Valve doing that?

[Motorhead]

Any advantage to putting a Gen II Valve in a Gen I?
Crosman claims a 30% increase in shot count for the .177 and .22
Is that the Valve doing that?

In STOCK form ( Action not modified or regulated )  Yes the G2 valve with the different valve seat configuration & MUCH heavier poppet spring fitted does save air over the gen 1 valves.

Wish to modify the valve for power or set up for regulator ? ... the gen 1 valves excel IMO.
Gen 2 valves can be modified, but not to the same potential or ease of doing as gen 1's can.

For an experienced tuner with access to a lathe and some specific tooling EITHER can be equally modified.

[WeeHeavy]

I found the Gen 2 valve to be a good match with the WAR SSG. I was getting a downward slope with the Gen 1 no matter what I tried (though I did not try changing to a lighter spring before blowing the valve). I messed up my settings and fractured the poppet face in the Gen 1 valve (but the 16.2gr JSB Beast pellet went over my chrony at 1155 FPS  ). I ordered a new valve with the intention of fixing the original. The difference in poppet spring tension is pretty obvious and I found that the extra force on the Gen 2 poppet managed the heavier weight of the SSG better than the Gen 1 valve. I now have 16.2gr JSB Beasts running at an average 885 FPS for 30 shots at just a hair over 2% ES. I did not gain in shot count but I gained about 30 FPS, efficiency went up a little and ES went way down.

[Privateer]

It's a Gen I with Huma Reg and a Custom SSG.
Valve and Hammer have not been modded.