Weaver Brothers, LTD


COMMON PLUMBING PROBLEMS

 
 

PAN FILLS UP, TANK EMPTIES OUT

VACUUM LEAK BETWEEN PAN AND PUMP

 
 
 

RESTRICTION IN "SCAVENGE IN" LINE

 

RESTRICTION IN "SCAVENGE OUT" LINE

 
 
 
 

MASSIVE INTERNAL OIL LEAKAGE TO PAN

 
 

IMPROPERLY CONNECTED LINES

 

POOR PAN DESIGN

Pick-up(s) placed such that the oil cannot reach them
Poorly designed baffling keeping oil away from pick-up(s)
No scraper or inefficient scraper design causing oil to remain airborne
 
 
 

LOW OIL PRESSURE

 

RESTRICTION ON INLET SIDE

 

RESTRICTION ON OUTLET SIDE

 

VACUUM LEAK ON INLET SIDE

 
 

INADEQUATE SUPPLY OF OIL TO PUMP

 

PRESSURE PUMP RELIEF VALVE INOPERATIVE

 

NO OIL PRESSURE

RELIEF VALVE INOPERATIVE

 
 

IMPROPERLY CONNECT LINES

 

ERROR IN PUMP RE-ASSEMBLY

 

TOO MUCH OIL PRESSURE

IMPROPERLY CONNECT LINES

 

RELIEF VALVE INOPERATIVE

 

FRONT SEAL BLOWS OUT OF PUMP

SEAL IMPROPERLY INSTALLED

 

RESTRICTION IN "SCAVENGE OUT" LINE

 

BROKEN TIMING BELT

 

PUMP STOPS SUDDENLY

 

BELT STRETCHED BEYOND ITS CAPACITY

 

OIL BLOWS OUT OF VALVE COVER BREATHERS

 

EXCESSIVE CYLINDER BLOW-BY

 

INADEQUATE ENGINE BREATHING

 

OIL LEAKS

 

AT PUMP DRIVE SHAFT

 

BETWEEN PUMP STAGES

 

AT FITTINGS

 

IN HOSES

 
 
Copyright (C) 1998  Weaver Brothers, LTD.
Page last modified February 07, 1998