A B737-300 PILOT REPORTS OF POOR MAINT ACTION (LACK OF ACTION) BY HIS CARRIER CAUSED AN ABORTED TAKEOFF. BELIEVES MAINT CONTINUES TO DETERIORATE.

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POOR MAINT ACTION (LACK OF ACTION) ON ACR X'S PART CAUSED AN ABORTED TKOF. LATE TRANSPORTATION FROM HOTEL CAUSED A LATE ARR TO ZZZ. WE DECIDED TO LOOK AT THE FLT PAPERS IN THE REMOTE FLT PLANNING ROOM CLOSER TO OUR GATE. PAPERS SHOWED MAINT HAD A GRIPE THE DAY BEFORE WITH THE R GENERATOR CSD TEMP GAUGE. ACTUAL WORDING: RT GEN DRIVE RISE TEMP IS OFF SCALE T O HIDE SIDE. IN TEMP NORMAL AT 80. NO FAULT LIGHTS SHOWING. DEFFERED PER MX CTL. SWAPPED TEMP IND'S. RAN ENGS; PROB STAYS WITH RT ENG. CHK'D OIL SVC PER MM-24-11-00-101 CHK'S OK. NEED MORE TIME TROUBLESHOOTING. MEL OPS PLACARD. DEFECT: RISE FUNCTION OF #2 GEN DRIVE OIL TEMP INDICATOR INOPERATIVE. FLT CREW: A) ASSOCIATED 'LOW OIL PRESSURE' LIGHT AND 'HIGH OIL TEMP' LIGHT MUST OPERATE NORMALLY. THE PLANE OVER-NIGHTED IN ZZZ. MAINT COULD NOT FIGURE OUT WHY THE FULL SCALE DEFLECTION ON THE R CSD RISE TEMP. INSTEAD OF RESEARCHING THE PROB THEY SIGNED IT OFF WITH THE STATEMENT 'NEED MORE TIME TO TROUBLESHOOTING.' AS A RESULT OF NOT ENOUGH TIME TO TROUBLESHOOT DURING A RON (ROUTINE OVERNIGHT); WE EXPERIENCED A MASTER CAUTION LIGHT ON THE TKOF ROLL AROUND 70 KTS. TKOF ABORTED. THE OVERHEAD LIGHT THAT TRIGGERED THE MASTER CAUTION CAME FROM THE R GEN CSD. WE CLRED THE RWY; INFORMED THE PAX; CONTACT MAINT; AND PROCEEDED TO SHUT DOWN THE R ENG TO PREVENT ANY POSSIBLE FURTHER DAMAGE. TAXI BACK TO THE GATE WAS UNEVENTFUL. WE WERE MET BY 3 MECHS. THE VERY FIRST WORDS OUT OF THEIR MOUTHS WERE 'WE WOULD LIKE TO DEFER THE R GENERATOR. WILL YOU TAKE THE PLANE BACK OUT?' I USED TO NEVER WORRY ABOUT THE MAINT AT ACR X. TIMES HAVE CHANGED DRAMATICALLY AND SO HAS THE MAINT STANDARDS OF OUR PLANES. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: REPORTER STATES THIS ISSUE OF HAVING TO REFUSE ACFT BECAUSE OF SAFETY OF FLIGHT ISSUES; JUST TO GET MAINT TO FIX TO AN ITEM; PLACES UNDUE PRESSURE ON FLIGHT CREWS. THIS ABORTED TAKEOFF COULD HAVE BEEN AVOIDED; NOT TO MENTION THE POTENTIAL DANGERS INHERENT WITH ANY REJECTED TAKEOFF (RTO'S) PROCEDURE.