<Tom, you mean all those pieces that came out have to ALL go back in?>
Well----most of 'em.
<I must have a transitional model. I have the cast receiver halves but have the plastic pump lever.>
You do indeed!
FWIW to the 880 owners out there in 'Airgun Land' (
) there's a 'quick and dirty' hop-up for that series. Just keep in mind that if you do it and destroy your gun----well---you're on your own.
Open the pump lever up and take a gander inside the pump tube. You will see a link section that holds the piston and O-ring at one end and is pivoted to the rest of the pump linkage on the other. That link contains a rubber 'biscuit' that is designed to prevent overcharging no matter how many times it is pumped. The 'quick fix' is to replace that rubber biscuit with a stack of flat washers of equivalent thickness.This can only be done with the earlier models with the metal pump lever because you WILL break the plastic pump lever if your gun is so equipped! The plastic lever was designed to thwart exactly the modification described! It's the 'insurance' link in the chain.
I have in my collection the original 'Velocity Standard' gun of the 880 series from the Daisy R & D department. In place of the rubber biscuit it has an ingenious adjustable piston that can be adjusted to provide any level of pump pressure to the valve. Which goes a long way to explain just how they were able to achieve the advertised velocity figures for the gun!
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