diff --git a/mysql-test/extra/rpl_tests/rpl_row_blob.test b/mysql-test/extra/rpl_tests/rpl_row_blob.test
index 13f49f1c3da..7f41118387f 100644
--- a/mysql-test/extra/rpl_tests/rpl_row_blob.test
+++ b/mysql-test/extra/rpl_tests/rpl_row_blob.test
@@ -40,6 +40,7 @@ SELECT LENGTH(data) FROM test.t1 WHERE c1 = 3;
 save_master_pos;
 connection slave;
 sync_with_master; 
+sleep 5;
 --echo
 --echo **** Data Insert Validation Slave Section test.t1 ****
 --echo
@@ -61,10 +62,10 @@ SELECT LENGTH(data) FROM test.t1 WHERE c1 = 1;
 SELECT LENGTH(data) FROM test.t1 WHERE c1 = 2;
 # Sleep is needed for NDB to allow time for
 # Injector thread to populate the bin log.
-sleep 10;
 save_master_pos;
 connection slave;
 sync_with_master; 
+sleep 5;
 --echo
 --echo **** Data Update Validation Slave Section test.t1 ****
 --echo
@@ -135,6 +136,7 @@ FROM test.t2 WHERE c1=2;
 save_master_pos;
 connection slave;
 sync_with_master; 
+sleep 5;
 --echo
 --echo **** Data Insert Validation Slave Section test.t2 ****
 --echo
@@ -159,10 +161,10 @@ SELECT c1, LENGTH(c2), SUBSTR(c2,1+2*900,2), LENGTH(c4), SUBSTR(c4,1+3*900,3)
 FROM test.t2 WHERE c1=2;
 # Sleep is needed for NDB to allow time for
 # Injector thread to populate the bin log.
-sleep 15;
 save_master_pos;
 connection slave;
 sync_with_master; 
+sleep 5;
 --echo
 --echo **** Data Update Validation Slave Section test.t2 ****
 --echo
diff --git a/mysql-test/t/disabled.def b/mysql-test/t/disabled.def
index f2aea021016..dabc0efce77 100644
--- a/mysql-test/t/disabled.def
+++ b/mysql-test/t/disabled.def
@@ -33,7 +33,5 @@ rpl_ndb_sp007           : Bug #17290
 rpl_sp                  : Bug#16456
 rpl_until               : Unstable test case, bug#15886
 sp-goto                 : GOTO is currently is disabled - will be fixed in the future
-#rpl_ndb_blob            : Bug #17505
-rpl_ndb_blob2           : Bug #17505
 rpl_ndb_log             : results are not deterministic
 mysqldump               : Bug#17443 mysqlimport --use-threads=5 gives crashes