diff --git a/tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/sourcesProperties b/tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/sourcesProperties
index 6137d5900e..523f5ad8b9 100644
--- a/tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/sourcesProperties
+++ b/tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/sourcesProperties
@@ -19,8 +19,6 @@ porosity1
 {
     type            explicitPorositySource;
     active          true;
-    timeStart       0;
-    duration        1000000;
     selectionMode   cellZone;
     cellZone        porosity;
 
diff --git a/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/sourcesProperties b/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/sourcesProperties
index 1a3adf4c90..c49da928e3 100644
--- a/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/sourcesProperties
+++ b/tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/sourcesProperties
@@ -19,8 +19,6 @@ source1
 {
     type            fixedTemperatureConstraint;
     active          true;
-    timeStart       0;
-    duration        1000000;
     selectionMode   cellZone;
     cellZone        porosity;
 
diff --git a/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/sourcesProperties b/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/sourcesProperties
index a73a9bd2b7..10d4404812 100644
--- a/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/sourcesProperties
+++ b/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/sourcesProperties
@@ -19,8 +19,6 @@ fixedTemperaure1
 {
     type            fixedTemperatureConstraint;
     active          true;
-    timeStart       0;
-    duration        1000000;
     selectionMode   cellZone;
     cellZone        porosity;
 
@@ -36,8 +34,6 @@ porosity1
 {
     type            explicitPorositySource;
     active          true;
-    timeStart       0;
-    duration        1000000;
     selectionMode   cellZone;
     cellZone        porosity;
 
diff --git a/tutorials/incompressible/pimpleFoam/channel395/constant/sourcesProperties b/tutorials/incompressible/pimpleFoam/channel395/constant/sourcesProperties
index 501ab02cb1..e0d33be914 100644
--- a/tutorials/incompressible/pimpleFoam/channel395/constant/sourcesProperties
+++ b/tutorials/incompressible/pimpleFoam/channel395/constant/sourcesProperties
@@ -19,8 +19,6 @@ momentumSource
 {
     type            pressureGradientExplicitSource;
     active          on;            //on/off switch
-    timeStart       0.0;           //start time
-    duration        1000000.0;     //duration
     selectionMode   all;       //cellSet // points //cellZone
 
     pressureGradientExplicitSourceCoeffs
diff --git a/tutorials/incompressible/simpleFoam/mixerVessel2D/constant/sourcesProperties b/tutorials/incompressible/simpleFoam/mixerVessel2D/constant/sourcesProperties
index 8b7fb7bcf2..e430834314 100644
--- a/tutorials/incompressible/simpleFoam/mixerVessel2D/constant/sourcesProperties
+++ b/tutorials/incompressible/simpleFoam/mixerVessel2D/constant/sourcesProperties
@@ -19,8 +19,6 @@ MRF1
 {
     type            MRFSource;
     active          true;
-    timeStart       0;
-    duration        1e100;
     selectionMode   cellZone;
     cellZone        rotor;
 
diff --git a/tutorials/incompressible/simpleFoam/turbineSiting/constant/sourcesProperties b/tutorials/incompressible/simpleFoam/turbineSiting/constant/sourcesProperties
index 47ea4f0978..335141fe69 100644
--- a/tutorials/incompressible/simpleFoam/turbineSiting/constant/sourcesProperties
+++ b/tutorials/incompressible/simpleFoam/turbineSiting/constant/sourcesProperties
@@ -19,8 +19,6 @@ disk1
 {
     type            actuationDiskSource;
     active          on;            //on/off switch
-    timeStart       0.0;           //start time
-    duration        1000.0;        //duration
     selectionMode   cellSet;       //cellSet // points //cellZone
     cellSet         actuationDisk1;//cellSet name when selectionMode = cellSet
 
@@ -39,8 +37,6 @@ disk2
 {
     type            actuationDiskSource;
     active          on;
-    timeStart       0.0;
-    duration        1000.0;
     selectionMode   cellSet;
     cellSet         actuationDisk2;