Originally Posted by
gc93
i bought one "in need of repair" sounds almost the same issue , i cleaned and lubed the valve areas ,oiled axis pins and a little light moly grease on the trigger surfaces etc put a little pelgun oil inside valve body and worked the gun. if yours seems low on power you may need a pump seal ?
Anything showing on chrono? Looks like finger is pointing to pump seal breaking up or dry!
Worth opening up and cleaning and a good lubrication all round.
HERX77 .
Fighter against the "Dark Arts" A stranger in an even stranger land.
GC2+Leupold 14.4-34x45
AA400 fac receiver+sidewinder 8.5-34x52
Weihrauch HW77k fiddled with and doing what it wants to +Zeiss 3-9x36.
Weihrauch HW90k
Weihrauch HW97k learning from above,now sporting a Maccarri 77/97 target stock..+Bushnell 3200.Go on shoot one you know you want to
Daystate mk3 RT Delux + bushnell 4200 8-24x 40Does what it should again & again.
Fwb 124 + Optima was good is good!
Webley Vulcan.