| Check plungers, connecting rods, bearings and crankshaft for
Repair or replace if
caused by these problems are unique. There is nothing like the sound of
2 pieces of metal coming together.
Generally, if it's a knock in
the crankcase, the problem is with the connecting rods or crankshaft. Usually,
if it's a grinding or scrapping sound the problem is a
bearing that the crankcase turns on. Either way the noises are distinctive and
means there is a serious problem with the pump.
Crankcase repairs can be
very expensive. If it's a bad crankshaft bearing or connecting rod,
the crankshaft may also need replacing. You may find a dealer/repair
shop with used parts. If not, and you have to use new parts, you will
be better off with a new
pump. Some super duty, expensive pumps are worthwhile to fix but smaller
everyday pumps are not worth it if you need a crankshaft and bearings.
The best way to prevent crankcase problems is
to make sure you change oil according to manufacturer schedule and
specifications and do not overheat the pump.
SOME OF THESE OPERATIONS CAN BE
EXTREMELY DANGEROUS. IF YOU DO NOT HAVE SUFFICIENT TRAINING IN THESE PROCEDURES, WE RECOMMEND YOU
SEEK ASSISTANCE FROM A