Is a half inch metal spacer behind the top hat too much to start? The guns already 150fps slower then base.
Spring spacers
- Thread starter 270windude
- Start date
You mean under the top hat? Like going in the piston before the spring?
Man it really depends on the gun. If there is room before it hits coil bind, then maybe. If it's a factory spring that's just lost power, you probably can't fit that much spacing. I'd try for 1/4" thick and hope that fit.
How is it sealing? is the piston seal and breech seal in good shape? A poor fitting or nicked up piston seal will cause poor power. Loose fitting pellets will also cause low power.
Man it really depends on the gun. If there is room before it hits coil bind, then maybe. If it's a factory spring that's just lost power, you probably can't fit that much spacing. I'd try for 1/4" thick and hope that fit.
How is it sealing? is the piston seal and breech seal in good shape? A poor fitting or nicked up piston seal will cause poor power. Loose fitting pellets will also cause low power.
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It’s a new JM spring and the Tesla seal. Both new and outstanding condition. I’ve got taking the piston out and in without any harm to the seal down to a science now. I am going to put the first experimental spacers in the piston behind the top hat due to necessity until I find better spacer for the back. I’m going to be playing with spacing a bit. I sanded the spring ends so they are flat and smooth today and I think just because of the added piston weight with the larger metal spacer I’m going to pass and just use some proper sized washers.
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I just got through installing a kit so things are still fresh. To determine the maximum spacer you can add, install the components without compression and measure the preload distance. Then measure the spring free length. Then calculate the solid height by counting coils, measuring wire diameter and mutiplying. The remaining available spring compression is the free length, minus the preload distance, minus the stroke, minus the solid height. (think I got it right that time)
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