New to me Crosman 160



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Offline the fuse

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Re: New to me Crosman 160
« Reply #40 on: July 31, 2017, 06:45:11 PM »
Same power out of less gas? Lighter hammer and/or stiffer valve spring would get you less gas. Now you would need to make that gas flow more efficiently. Altered bolt probe? Smooth off all the transfer bottle necks?  Hmmmmmm.
  • Carmel, NY
I've got a touch of hangover, bureaucrat. Don't push me.
Rifles
Crosman 160, 180, Model 1
Daisy 822, 922
QB57
Pistols
Smith & wesson 78G
Crosman 38T, Mark I, SA6
Daisy 722, 717, 1200, 118

Online unionrdr

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Re: New to me Crosman 160
« Reply #41 on: July 31, 2017, 08:51:12 PM »
I've been thinking of using the Dremel and rotary files to do a lil porting...
  • Back in the Village, OH
Crosman 760 Powermaster-1966-70, .177cal, variant 1
AIR17 1/87, .177cal, returned to son for Christmas '16
Crosman 160 Pellgun, 1955-56 .22cal Co2, variant 1 antique/Centerpoint 4x32 scope/Ron Robinson mounts
Hatsan Striker 1000x .22cal springer/ Hammers 3-9x32AO mildot scope
Winchester 1400CS .177cal magnum springer/ Hammers 4-12x40AO mildot scope on Instapark magnum air rifle mount, 5-bolt).
Crosman Benjamin Trail NP XL725 .25 caliber with Centerpoint 3-9x40AO mildot scope

Offline the fuse

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Re: New to me Crosman 160
« Reply #42 on: August 01, 2017, 01:59:43 PM »
Let us know how you get on. I've thought of trying that with my 180's......they already deliver less gas.
  • Carmel, NY
I've got a touch of hangover, bureaucrat. Don't push me.
Rifles
Crosman 160, 180, Model 1
Daisy 822, 922
QB57
Pistols
Smith & wesson 78G
Crosman 38T, Mark I, SA6
Daisy 722, 717, 1200, 118

Offline kelvinator

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Re: New to me Crosman 160
« Reply #43 on: August 01, 2017, 06:36:30 PM »
I've thought about doing a bolt probe mod, and probably will at some point.
I'd rather do it to a spare bolt in case I don't like the results, but I'll have to source another bolt.
I tried a high power valve from Mike at Flying Dragon in it.
His valve as supplied had a stiffer spring than what was in my original valve.
Since I figured the stiffer spring was for the Chinese rifles I swapped in the softer spring from the original valve.
It worked well and yielded 740fps with CPHP's, but with each shot velocity fell about 5fps for a total of only 20 usable shots on the two 12 gram carts.
So I put the stock valve back in as it was more consistent from shot to shot.
I wonder if the softer spring in my stock valve is original ?
Maybe the stiffer spring from the FD valve would work better in my stock valve.
Or maybe I should have left the stiff spring in the FD valve.
More questions than answers. :o :-\
I'll probably just have to experiment with it but I HATE taking the rifle apart so many times.
I enjoy shooting it WAY more than working on it HA !!!
« Last Edit: August 01, 2017, 06:40:58 PM by kelvinator »
  • Hickory Creek, Texas
Benjamin 342 Racine
Benjamin 392 Limited Edition #354
1964 Silver Streak Mac-1 Steroid
1965 Blue Streak
Crosman 160 3rd variant

Online Hoosier Daddy

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Re: New to me Crosman 160
« Reply #44 on: August 01, 2017, 06:46:40 PM »
What tool are using to remove the valve... here is all I have found in my searches on it. from HERE

Pistols
Crosman: PC77, 2300KT, 1740

Rifles
Beeman: RS2 Silver Kodiak, (SAG) AR2078-B
Benjamin: 312 (pre '57), 342 ('72), 392P ('93), 392PA ('15), Maximus
Crosman: Genesis NP .22, Quest 1000X, Raven (Grand-kids), 3rd gen 160
Gamo: Recon (Grandkids X2)
Sheridan: C Blue Streak ('85), C9 Blue Streak ('92) and a Co2 Model F (90)
Feinwerkbau: FWB 300S ('80)
Xisico: XS60C .22

Offline Radrob

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Re: New to me Crosman 160
« Reply #45 on: August 01, 2017, 06:59:07 PM »
Just make one from a 1/4" drive socket. I used a 4" grinder with a cutoff wheel, it was fast and easy and good to have because I've used it on a 106 and 114. It's a 3/8" and fits nice.
  • Lafayette La

Offline kelvinator

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Re: New to me Crosman 160
« Reply #46 on: August 01, 2017, 07:02:21 PM »
I made one out of an old wore out socket.
The flat steel bar will work well too, ya just need to find the right width to fit inside the tube.
« Last Edit: August 01, 2017, 07:06:41 PM by kelvinator »
  • Hickory Creek, Texas
Benjamin 342 Racine
Benjamin 392 Limited Edition #354
1964 Silver Streak Mac-1 Steroid
1965 Blue Streak
Crosman 160 3rd variant

Online Hoosier Daddy

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Re: New to me Crosman 160
« Reply #47 on: August 01, 2017, 07:06:03 PM »
Thanks!
I have sacrificed many a socket to the Die Grinder Gods to make specialty tools.
So I am well accustomed.
Much appreciated guys
Pistols
Crosman: PC77, 2300KT, 1740

Rifles
Beeman: RS2 Silver Kodiak, (SAG) AR2078-B
Benjamin: 312 (pre '57), 342 ('72), 392P ('93), 392PA ('15), Maximus
Crosman: Genesis NP .22, Quest 1000X, Raven (Grand-kids), 3rd gen 160
Gamo: Recon (Grandkids X2)
Sheridan: C Blue Streak ('85), C9 Blue Streak ('92) and a Co2 Model F (90)
Feinwerkbau: FWB 300S ('80)
Xisico: XS60C .22

Offline the fuse

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Re: New to me Crosman 160
« Reply #48 on: August 02, 2017, 02:13:29 PM »
I made mine out of a BIG flat head screw driver......notched the middle.
  • Carmel, NY
I've got a touch of hangover, bureaucrat. Don't push me.
Rifles
Crosman 160, 180, Model 1
Daisy 822, 922
QB57
Pistols
Smith & wesson 78G
Crosman 38T, Mark I, SA6
Daisy 722, 717, 1200, 118

Online unionrdr

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Re: New to me Crosman 160
« Reply #49 on: August 08, 2017, 10:19:53 PM »
I used the spring out of the Baker seal kit if I remember right? I also bought the newer Crosman valve assembly and assembly parts kit from the big A. Maybe spring was there's? Black spring that was longer. Or maybe just not compressed from the bolt closed squeezin' it for decades in closet after closet till recently? The Optima scope went south internally ( big surprise there-not!). So I swapped on the extra Centerpoint 4x32 I swapped off the Crosman optima I gave my son last April. Here's three Gamo Targets with 3 shots each @ 10 yards as measured. I used RWS superpoint extra pellets @ .22cal, 14.5gr.



Not bad by the second target when I finally got the scope adjusted pretty decent. Still waitin' to hear from Hatsan USA about the Optima 3-9x32...
« Last Edit: August 08, 2017, 10:24:24 PM by unionrdr »
  • Back in the Village, OH
Crosman 760 Powermaster-1966-70, .177cal, variant 1
AIR17 1/87, .177cal, returned to son for Christmas '16
Crosman 160 Pellgun, 1955-56 .22cal Co2, variant 1 antique/Centerpoint 4x32 scope/Ron Robinson mounts
Hatsan Striker 1000x .22cal springer/ Hammers 3-9x32AO mildot scope
Winchester 1400CS .177cal magnum springer/ Hammers 4-12x40AO mildot scope on Instapark magnum air rifle mount, 5-bolt).
Crosman Benjamin Trail NP XL725 .25 caliber with Centerpoint 3-9x40AO mildot scope

GTA - What's been your success with air gun target practice?