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Engine & Pump
Troubleshooting
The troubleshooting information is provided
as a reference when your machine is not
functioning correctly.
Problem
Pump does not take
on water.
Pump takes in
water, little or no
discharge.
Suction hose leaks
at inlet
Discharge hose
does not stay on
coupling.
Impeller does not
turn, pump is hard
to start.
Common Causes
Not enough priming water in the
housing?
Engine speed too low?
Strainer plugged?
Suction hose damaged?
Air leak at suction port?
Pump is located too high above
water line?
Debris collecting in pump
housing?
Too much distance between
impeller and volute.
Water leaking out weep hole
between pump and engine?
Suction lift or discharge head too
high.
Engine speed too low?
Suction strainer partially plugged? Clean strainer
Impeller/volute worn?
Fittings/clamps are not sealed
properly?
Hose diameter is too large?
Pressure too high?
Hose kinked or end blocked?
Impeller jammed or blocked?
Impeller and volute binding?
To ensure that you receive the best possible
service, it is recommended that you exhaust
all applicable troubleshooting solutions shown
prior to calling your dealer, or Goldacres, for
service advice.
Common Solution
Add water
Increase throttle
Clean strainer
Replace or repair hose & clamps
Check that fittings are tight & sealed
Move pump closer to water
Clean pump housing
Adjust clearance by adding shims or
replace impeller. Min. .010" -Max. .020
Check condition of mechanical seal
& gaskets, between pump end and
engine housing
Check hose/pipe installation
Increase throttle speed
Adjust clearance by adding shims or
replace impeller/volute
Tighten, replace or add clamp. (Keep
extra seals on pump)
Use smaller diameter hose or replace
hose
Check pressure, add additional clamp
Check hose
Open pump cover and clean dirt and
debris from inside housing
Adjust clearance by removing shim
from behind impeller
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