953 Power Mods, Phase One.

[DavidS]

• [DONE] Fill the cavity in the piston head with epoxy.
• [DONE] Shim the pump tube forward a bit (as far as it will still draw air).
• [WIP] Shoot it, punch paper, plink, shoot.
• [DONE] Polish the trigger/sear contact points.
• [DONE] Weaken Trigger spring (not doing the 888 trigger this time).
• [WIP] Shoot and shoot some more.

Finished the first round of power and trigger mods, as noted above.    I will have to remember to take pictures when I disassemble this 953 again, I remembered that I had not after I got it together.

A interesting side effect that was unexpected, it now has to be cocked to pump, where it did not before these mods.

[DavidS]

This Daisy 953 is definitely shooting harder.   I am in a bit of a holding pattern for the moment, as I believe that I may have bent the spring retainer, so I need to get a seal kit from Daisy before continuing modifications.

[Frank]

Hello DavidS,  Have been following your posts on the 953. I have one that I did the trigger mod on. That turned out well. Now, however it will not exhaust all the air  on one shot. It takes about two or three more cocks to exhaust all air. Needless to say these are very weak shots, can see the pellet travel. Have you had this problem or know of a solution?
Thanks for any help on this... Frank

[stonykill]

David has been banned.

  Check your hammer spring. Most often the cause of that issue is a weak hammer spring.

[Frank]

Thanks Stonykill, I will check that, maybe order a new one. Maybe I took it apart to many times.....  I will try stretching it first. I was going to order something from Daisy anyhow......

[Frank]

I found my problem when taking it apart. The sear, #19 on the 953 schematic. The original sear's cam is set back further then the one from the 888 parts. The hammer comes back almost  a quarter inch further with the original sear. All is working fine now and I have a sweet trigger. Now to try it out....   

[stonykill]

I found my problem when taking it apart. The sear, #19 on the 953 schematic. The original sear's cam is set back further then the one from the 888 parts. The hammer comes back almost  a quarter inch further with the original sear. All is working fine now and I have a sweet trigger. Now to try it out....

 Excellent! Glad to hear.

[snuffer]

Frank did you go back to the old sear? I was going to order the 888 trigger group for my 853.

[Frank]

So I am thinking that the sear on the different X53 models and the 888 and 887 could possibly not be the exact same!!

[Frank]

Snuffer... Yes went back to the old sear. You may not need to order the 888 sear, just the rest of the needed parts to do the mod. I ordered the 888 parts and they all fit. If you do get the sear just compare them before using the new one. Something I neglected to do.
Here are pdf files I just received from Daisy today on the 853c and 953.

I also have a nice power point file on disassembly/assembly of the 853c. You can download a PP reader from Microsoft. Google "Power Point Reader".  Just Personal Message me and I think I can give you the file that way. It is too large for the forum here.
If you give me your email address I know I can send it that way!!